Reisterstown Maryland Monthly Summary for June 2017

Reisterstown Maryland Monthly Summary for June 2017

by Ray Muller, Observer in Charge

PRECIPITATION (Departure/Date)

Monthly total 1.88″ (- 2.18″)

Year to date 21.28″ (- 1.62″)

Max in 12 hrs 0.48″ (19)

Max in 24 hrs 0.74″ (19)

Number of days of precipitation

>= .01″ = 11

>= .10″ = 5

>= .50″ = 1

>= 1..00″ = 0

WEATHER TYPES – number of days

Fog 10

Haze 6

Dense fog 0

Thunder 2

Gale force winds 1

Damaging winds 0

CLOUD COVER (sunrise to sunset – number of days)

Clear 10

Partly cloudy 14

Cloudy 6

REMARKS

Temperatures

Max 93 (13)

Min 52 (8)

Max => 90° = 3

Barometric Pressure at 1900

Highest 30.16” (28)

Lowest 29.74” (5)

Peak Wind Gust

40 MPH (19 from the west at 1456)

Minimum Relative Humidity

23% at 1550 on the 2nd

Another dry month with below normal precipitation.
Farmers reported dry ground, dusty fields, and slow
growth with some agricultural crops.Reservoirs began
to fall in the middle of the month and continued to fall
slightly through the end of the month.

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May 2017 NJWO Blog Climate summary and report for Rockville 2.8 WNW Maryland by Kevin Shaw Observer

MAY 2017 – ROCKVILLE 2.8 WNW MARYLAND
PRELIMINARY STATISTICS FOR THE NJWO BLOG
by Kevin Shaw, Observer in charge

Average high temperature 72.4°
Average low temperature 55.9°
Mean temperature 64.2°
Precipitation 5.65″
Greatest daily amount(date) 1.75″ (5)
Snow 0.0″
Year to date precipitation 16.21″
High temperature for the month (date) 92° (17)
Low temperature for the month (date) 42° (8)
Highest barometric pressure (date) 30.34 (21)
Lowest barometric pressure (date) 29.30 (6)
Peak wind gust (date/direction): N/A
Heating degree days for the month: 105
Cooling degree days for the month: 80
Greatest diurnal range (date): 30.4° (14)
Least diurnal range (date) 7.4° (23)
Number of days:
Fog 9
Thunder 3
Cloudy 12
Partly Cloudy 15
Sunny/Clear 4

MAY 2017 – BRIEF CLIMATE SUMMARY
ROCKVILLE 2.8 WNW MARYLAND
by Kevin Shaw, observer in charge

May 2017 reversed the general trend we had earlier this year, as we
had a wet and cooler month. The biggest highlight statistic of this trend was
the 20 days of measurable precipitation, an occurrence that has only
occurred a few times in the past. Precipitation totaled 5.65″ for the month,
with the heaviest daily amount recorded on the 5th (1.75″) due to the biggest
storm of the month, which also recorded the lowest pressure reading of the
month (29.30″). The coolest temperatures of the month occurred right after
this storm passage with a 42° on the 8th. Then about a week later, temperatures
rebounded up to 92° on the 17th, the highest reading of the month and the start
of a heat wave, which is defined as 3 days in a row (or more) of 90° or greater
maximum temperatures.

May coincided with my first full month of reliable precipitation readings from
my ground-mounted 4 inch cocorahs rain gauge. Timing on the establishment
of the gauge was excellent to capture all those rainy days!

There were 105 heating degree days (HDD) and 80 cooling degree
days (CDD) during the month. These figures weren’t all that different than
the ones for April.

My maximum temperature frequencies included the 3 days of 90° or more,
4 days between 80° and 89°, 12 days between 70° and 79°, 10 days
between 60° and 69°, and 2 days between 50° and 59°. On the minimum
temperature frequency side of things, there were 8 days between 40° and
49°, 13 days between 50° and 59°, 9 days between 60° and 69°, and 1 day
of 70° or over.

The diurnal range daily monthly average was 16.5°. Though I have no normals
for this location as yet, I will exhibit generally relatively low diurnal ranges
due to my station’s elevated location above ground. The maximum daily
range of 30.4° occurred on the 14th (76.2°- 45.8°) at the beginning of our
warmest period of the month. There were 8 days total with daily ranges at
or above 20°. The lowest daily temperature range of 7.4° (66.3°- 58.9°)
which occurred on the 23rd, near the beginning of our longest wet period
of the month, when 9 out of the last 10 days of the month had measurable
precipitation. There were a total of 6 days with minimum daily temperature
ranges less than 10°.

Despite the relative coolness of May, it still appears that the 2017 year
is headed for yet another record warm year. June has been warm and humid,
and once again dry. Please ask me any questions you want at any time through
any means you can. I am still working on some backlog issues, but they are
getting resolved slowly but surely. More improvements to my station are in
the works, and will be highlighted in future monthly reports.

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Reisterstown 1.2 NW Maryland – May 2017 monthly weather summary

Reisterstown Maryland Monthly Summary for May 2017

by Ray Muller, Observer in Charge

PRECIPITATION (Departure/Date)

Monthly total 6.96″ (+ 2.39″)

Year to date 19.40″ (+ 0.56″)

Max in 12 hrs 0.96″ (5)

Max in 24 hrs 2.22″ (5)

Number of days of precipitation

>= .01″ = 18

>= .10″ = 10

>= .50″ = 4

>= 1..00″ = 2

>= 2.00” = 1

WEATHER TYPES – number of days

Fog 13

Haze 8

Dense fog 3

Thunder 3

Gale force winds 2

Damaging winds 0

CLOUD COVER (sunrise to sunset – number of days)

Clear 5

Partly cloudy 10

Cloudy 16

REMARKS

Temperatures

Max => 90° = 3

No frost observed this month.

After above normal (wet) month streams and reservoirs to near or slightly above normal.

Green vegetation dominates the area with full growth of trees and grass.

Only 12 days with non-measurable rainfall.

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Stewartsville January 2017 Summary

Stewartsville Monthly Weather Observation Summary
Jan-17
DAY MAX MIN MEAN PRECIP SNOW SOG COMMENTS
1 49 29 39.0 0.00
2 41 28 34.5 0.26 T
3 44 37 40.5 0.52
4 52 29 40.5 0.00
5 33 23 28.0 0.07 0.9
6 32 19 25.5 0.02 T
7 24 17 20.5 0.00 1.1 T
8 25 13 19.0 0.00 T 1
9 25 8 16.5 0.00 T
10 40 10 25.0 0.00 T
11 47 35 41.0 0.51 T
12 64 46 55.0 0.06
13 57 29 43.0 0.00
14 34 26 30.0 0.12 1.5
15 38 21 29.5 0.00 1.5
16 42 14 28.0 0.00
17 40 34 37.0 0.22
18 44 35 39.5 0.07
19 46 35 40.5 0.00
20 42 28 35.0 0.29
21 49 39 44.0 0.01
22 51 42 46.5 0.01
23 47 35 41.0 0.93
24 43 34 38.5 0.29 T T sleet
25 52 37 44.5 0.00
26 54 38 46.0 0.01
27 43 33 38.0 0.00 T
28 39 31 35.0 0.00 T T
29 42 29 35.5 0.00 T
30 38 24 31.0 0.00
31 32 21 26.5 0.02 0.3
3.41 3.80
6.70 Season Total
Extreme High 64.0 Date: 12-Jan
Extreme Low 8.0 Date: 9-Jan
Mean Max: 42.2
Mean Low: 28.4
Mean: 35.3
dabour@att.net
SOG = Snow On Ground measured at 7 AM EST
Elevation = 395′
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DECEMBER 2016 – GAITHERSBURG 2 WNW MARYLAND – BRIEF CLIMATE SUMMARY AND STATISTICS FOR THE NJWO BLOG

DECEMBER 2016 – GAITHERSBURG 2 WNW MARYLAND
BRIEF SUMMARY STATISTICS FOR THE NJWO BLOG
by Kevin Shaw, Observer in charge

Average high temperature 45.4 (+1.7)
Average low temperature 31.0 (+4.7)
Mean temperature 38.2 (+2.9)
Precipitation 2.72″ (-0.65″)
Greatest daily amount (date) 0.96″ (6)
Snow 0.4″ (-4.8″)
Greatest daily amount 0.2″ (17,30)
Year to date precipitation 39.82″ (-5.02″)
High temperature for the month (date) 65 (27)
Low temperature for the month (date) 15 (16)
Highest barometric pressure (date) 30.76″ (19)
Lowest barometric pressure (date) 29.57″ (1)
Peak wind gust (date/direction): 28 (15/WNW)
Heating degree days for the month: 822
Cooling degree days for the month: 0
Greatest diurnal range (date): 25 (22)
Least diurnal range (date) 4.2 (6)
Number of days:
Fog 3
Thunder: 0
Snow/Sleet/Glaze: 1/1/1
Sunny/clear days: 3 Partly Cloudy days: 15 Cloudy days: 13

Days with measurable precipitation (=>.01″) = 11 Days with maximum temperatures of 32 or less = 1
Days with minimum temperatures of 32 or less = 15

DECEMBER 2016 MONTHLY SUMMARY
GAITHERSBURG 2 WNW MARYLAND
by Kevin Shaw, observer in charge

I moved to nearby Rockville about 5 miles SSE of my old
location) on December 19. I took my old station down on
Friday afternoon December 16. Estimated readings were
used extensively after December 16. Some data may be
missing and shows as blank. I struggled to put this data
and summary together to get the 2016 year finished. It
was a long and glorious 38 year run at my old station
location. I will be starting compilation of data at my
new location with my January 2017 report.

December 2016 was mild and relatively dry. Nothing record-
breaking by any means. But it fit in the pattern of the
majority of months in 2016. The 0.96″ daily amount on the
6th of the month was the wettest day of the month by far,
but did not set a daily record. No records were set during
the month, other than a tied record for daily snow (0.2″)
on the 17th. Monthly snowfall was a paltry 0.4″, some 4.8″
below my long-term average snowfall for December. The 65
monthly high temperature and the 47 monthly high minimum
temperature did not set daily records on the 27th, as the
records of 68 and 51 were set just one year ago in 2015,
during a record warm December.

Measurable rain fell on 11 days through out the month,
normal for December. The total precipitation for the year
of 39.82″ was 5.02″ below the long-term yearly average.

The average maximum temperature for the month was 45.4
(+1.7), the average minimum temperature was 31.0 (+4.7). The resultant mean average temperature for the month was
38.2 (+2.9).

The month’s highest barometric pressure reading of 30.76″
on the 19th occurred during one of the few cold periods of
the month. The lowest pressure reading of the month of
29.57″ was on the first day of the month, the last half of
the big storm at the end of November.

The distribution of 3 sunny, 15 partly cloudy and 13 cloudy days fell into the now winter patterns of cloudy cooler
temperatures with lighter amounts of daily rain.

There were 822 heating degree days (HDD) and 0 cooling
degree days during the month. I had 3 foggy days in
December. There were no thunderstorm days. The peak wind
gust during the month was 28 MPH out of the WNW on the 15th with low wind chills as the high winds brought in the coldest air of the month and the only day during December with a sub- freezing maximum temperature on the next day (16th). I had a total of eight days with PWG readings at or above the 20 MPH mark. There were only 2 days with a PWG of 9 MPH or less,
The dominant daily wind direction was 22 days with a westerly component, followed by 4 days with an easterly component.

My maximum temperature frequencies included 1 day
between 60 and 69, 6 days between 50 and 59, 16
days in the 40s, 7 days in the 30s, and 1 day in the 20s.
On the minimum temperature frequency side of things,
there were 3 days between 10 and 19, 9 days between
20and 29, 15 days between 30 and 39, and 4 days
between 40 and 49.

The diurnal range average was below normal once again
(14.4 vs the normal of 17.9). The maximum daily range
of 25 occurred on the 22nd (56-31) during one of the
clear periods of the month. There were only 5 days total
with daily ranges at or above 20. The lowest daily
temperature range of 4.2 (41-37) occurred on the
rainiest day of the month on the 6th, There were a total of 5 days with minimum daily temperature ranges less than 10.

So far the winter has been comparatively mild. I am so far
behind we are knocking on the door of February. We have
had some of our biggest snowstorms during the coming
month. So don’t let your guard down yet. I look forward to
reporting to you from now on from my new Rockville
location. It is a new beginning for me, and hopefully
another long and glorious one with plenty of new
weather adventures!!

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NWC Research Undergraduate Internship Summer of 2017! deadline 2/8/17

I am excited to let you know that the National Weather Center Research Experiences for Undergraduates Program has already been funded for summer 2017! We have an exciting program that pairs undergraduate students with research mentors to conduct a project in the wide-ranging meteorology, climate, radar engineering, and interdisciplinary topics being researched here. Students are paid a stipend, have free housing, a travel allowance to/from Norman, OK, and travel allowance to present their work at the national conference that best suits them.

For our new grant we have as partners the Radar Innovations Laboratory and the South Central Climate Science Center, which opens new research lines in addition to our traditional severe weather, weather modeling, lightning, statistics, and other projects with mentors from the NOAA and University of Oklahoma organizations housed in the National Weather Center building.

In addition to research, I help the students learn more about the many careers in and around meteorology to help them explore and find career options that might suit them well. We hold several workshops and have one-on-one mentoring to help students build skills needed to succeed.

Students interested in the program are required to submit an application, two reference letters, and their official college transcript(s). To be eligible for the program students must be enrolled in a 2- or 4-year college degree program and be a US citizen or permanent resident of the US. Applications from women and minorities are particularly encouraged. The University of Oklahoma is an equal opportunity institution.

All applications and related materials for the 2017 REU are due by February 8, 2017 for full consideration, though references will have one additional week to submit letters.

For more information and to learn how to apply online please visit our web site: dzaras or (405) 325-1898.

Sincerely,

Daphne S. LaDue, Ph.D.

NWC REU

CAPS, Suite 2500

120 David L. Boren Blvd

Norman, Oklahoma 73072

Ph: 405-325-1898

Fax: 405-325-7614

*Examples of conferences include, but are not limited to, the American Meteorological Society’s (AMS) Annual Meeting, the American Geophysical Union (AGU) Fall Meeting, the American Indian Science and Engineering Society’s (AISES) regional or national conferences, and the Society for the Advancement of Chicanos and Native Americans in Science (SACNAS).

Please forward to undergraduates!

Mark Kramer, Chair

New York City/Long Island AMS Chapter

http://www.nws.bnl.org/meetings.html

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November 2016 Weather highlights, summary and data for Gaithersburg Maryland

NOVEMBER 2016 – GAITHERSBURG 2 WNW MARYLAND
BRIEF SUMMARY STATISTICS FOR THE NJWO BLOG
by Kevin Shaw, Observer in charge

Average high temperature 58.7° (+ 3.5°)
Average low temperature 37.7° (+ 3.0°)
Mean temperature 48.2° (+ 3.2°)
Precipitation 2.19″ (- 1.63″)
Greatest daily amount (date) 1.59″ (30)
Year to date precipitation 37.10″ (- 4.37″)
High temperature for the month (date) 74° (2,3)
Low temperature for the month (date) 26° (23)
Highest barometric pressure (date) 30.54″ (7)
Lowest barometric pressure (date) 29.54″ (30)
Peak wind gust (date/direction): 29 (20/WSW)
Heating degree days for the month: 505
Cooling degree days for the month: 0
Greatest diurnal range (date): 34.8° (8)
Least diurnal range (date): 7.1° (20)
Number of days:
Fog: 2 (both days dense)
Thunder: 0
Sunny/clear days:12 Partly Cloudy days:6 Cloudy days:12

Days with measurable precipitation (=>.01″) = 6
Days with maximum temperatures of 70° or more = 2
Days with minimum temperatures of 32° or less = 8

NOVEMBER 2016 MONTHLY SUMMARY
GAITHERSBURG 2 WNW MARYLAND
by Kevin Shaw, observer in charge

November 2016 was warm and dry, the 9th such monthly
pattern in my 38 years of Novembers. However, it fell
short of being the driest November ever, as the last 2
days of the month provided for over 88% of the month’s
total precipitation (1.94″ 2 day total vs. 2.19″ monthly
total). The 1.59″ daily amount on the last day of the month
was the wettest day of the month by far, and also set a daily record precipitation amount for the date. Statistically
November 2016 was the 8th driest November on record.
Temperature-wise the month fell in the middle of the pack
both on the max, min and mean side of the ledger. One
temperature record was set during our warmest spell of the
month, with the 55° min temp on the 3rd setting a record
for the highest minimum temperature for the date. The min
temperature for the month of 26° on the 23rd was a warm
extreme monthly min, most Novembers in the past have at
least dropped into the low 20s if not the teens by the end
of November. 6 days of measurable precipitation and 8
days of 32 or lower mins both were well below the normal
amounts of 9.6 and 13 days. No snow month was the 14th
time that has occurred.

November 2016 featured more above normal temperatures but
not to the extent of previous warm months. The most notable
temperature fact during the month was the first 32° min of the season was recorded on November 8, which tied 2014 for the
latest first freeze date of the season.

Most of the month was also quite dry as only 0.25″ fell during the first 28 days of the month. We were headed towards an all-time record dry November but the rains on the last 2 days of the month (1.94″) wiped out that possibility. Still considerably below normal (-1.63″) and the 8th driest November in my 38 period of record (POR). Measurable rain fell on only 6 days through out the month, only about half of the long-term average amount of 9.6 days. My current year to date precipitation total of 37.10″ through November 30 is 4.37″ below the normal amount of 41.47″.

The average maximum temperature for the month was 58.7°
(+3.4°), the average minimum temperature was 37.7° (+ 3.0°). The resultant mean average temperature for the month was
48.2° (+ 3.2°).

The month’s highest barometric pressure reading of 30.54″ on the 7th was at the end of the beginning of the month warm spell. The lowest pressure reading of the month of 29.54″ was on the last day of the month (30th) when we had our stormiest/wettest day of the month.

The distribution of 12 sunny, 6 partly cloudy and 12 cloudy days didn’t fit in as well as October with the generally dry conditions.

There were 505 heating degree days (HDD) and 0 cooling degree days during the month. I managed to catch two foggy days in November right at the end of the month during our two wettest days. Both days actually had dense fog at times, occurring around midnight to enable them to share with the two days. There were no thunderstorm days. The peak wind gust during the month was 29 MPH out of the WSW on the 20th and was our windiest day since early April. I had a total of five days with PWG readings above the 20 MPH mark. It was another generally calm month as 10 days recorded a PWG of 9 MPH or less, spread out fairly evenly throughout the month. The dominant daily wind direction was 23 days with a westerly component, followed by 7 days with a easterly component (mostly towards the end of the month).

My maximum temperature frequencies included 2 days at or above 70°, 12 days between 60° and 69°, 12 days between 50° and 59°, and 4 days in the 40s. On the minimum temperature frequency side of things, there were 4 days between 20° and 29°, 15 days between 30° and 39°, 8 days between 40° and 49°, and 3 days between 50° and 59°.

The diurnal range average actually a bit above normal, the first time it has done that in quite a while (21.0° vs the normal of 20.5°). The max daily range of 34.8° occurred on the 8th (67°-32°) on the day of our first freezing min of the fall season. There were 3 other days with ranges in the 30s, and an additional 15 days with daily ranges at or above 20°. The lowest daily temperature range of 7.1° (43°-36°) occurred on a cool, cloudy, damp day on the 20th. There were a total of 4 days with minimum daily temperature ranges less than 10°.

The tropics calmed down in November when it normally starts to wind down. There was one remarkable hurricane Otto at the end of November that formed way down in the southern Caribbean that only affected Central America. The remarkably strong storm also held together to move through the isthmus land mass and into the Pacific, maintaining its tropical characteristics enough to hold on to the storm name Otto through its total life. Our rainstorm at the end of the month wasn’t related to Otto at all, though it was a pretty warm storm. As we enter December now, it appears that we finally are getting into a wetter, colder pattern that may lead to some snow eventually. We shall see what develops. I may not be able to do another report like this for the
foreseeable future due to major personal changes. I am going to have to shut my personal weather station down sometime during the month for an unknown period of time. When it opens up again hopefully, it will be in a different location. With the close of November, I completed a full 38 years of precipitation records at my location, starting on December 1, 1978. My temperature records started on January 1, 1979. Seems like only yesterday! It has been quite a run!


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Stewartsville November 2016 Monthly Summary

stewartsville-2016-weather-data

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October 2016 Gaithersburg 2 WNW Maryland weather summary and statistics for the NJWO blog

OCTOBER 2016 – GAITHERSBURG 2 WNW MARYLAND
BRIEF SUMMARY STATISTICS FOR THE NJWO BLOG
by Kevin Shaw, Observer in charge

Average high temperature 68.7° (+ 3.5°)
Average low temperature 49.9° (+ 6.0°)
Mean temperature 59.3° (+ 4.7°)
Precipitation 0.78″ (- 2.72″) Greatest daily amount (date) 0.40″ (1)
Year to date precipitation 34.91″ (- 2.74″) High temperature for the month (date) 84° (19)
Low temperature for the month (date) 33° (26)
Highest barometric pressure (date) 30.52″ (11,26)
Lowest barometric pressure (date) 29.60″ (21)
Peak wind gust (date/direction): 26 (22/SW)
Heating degree days for the month: 204
Cooling degree days for the month: 28
Greatest diurnal range (date): 35.5° (29)
Least diurnal range (date) 2.9° (1)
Number of days:
Fog 3
Thunder: 0
Sunny/clear days: 13 Partly Cloudy days: 11 Cloudy days: 7

Days with measurable precipitation (=>.01″) = 5
Days with maximum temperatures of 80° or more = 5
Days with minimum temperatures in the 30s = 3

OCTOBER 2016 MONTHLY SUMMARY
GAITHERSBURG 2 WNW MARYLAND
by Kevin Shaw, observer in charge

October 2016 was noticeably dry and warm. It was the second
driest October ever, only surpassed by the meager 0.29″ that fell in all of October 2000. The mean temperature 59.3° was
the third warmest October in my 38 year period of record
(POR), only being surpassed by October 1984 (61.0°) and
October 2007 (62.1°). Several record daily high temperatures were set during the month, as were several high minimum
temperatures. The minimum temperature for the month (33.2°)
failed to reach the freezing mark for the ninth time in my POR, including a fifth time in very recent times, since 2009. I hit the 80° maximum temperature threshold five times during the month, including 4 times in a row during our mid-month heat wave from the 17th through the 20th. Similarly, I had 5 days during the month when I had minimum temperatures above the 60° mark.
Conversely, I only had 3 days during the month with minimum
temperatures in the 30s. Only the 33.2° reading on the 26th
managed to produce frost at my location. Fall colors were
delayed this season once again, and are only now approaching peak color in early November, forestalled by the mild overnight temperatures and lack of frost during the month.

October 2016 featured more near record-breaking warmth with
regard to average monthly temperatures for my 38 year period of record (POR). The average high temperature wasn’t quite as extreme but was the 5th warmest ever. 3 daily record high
temperatures were recorded – 83° on the 18th, 84° on the 19th, and 80° on the 30th. 2 daily record high minimum temperatures were set – 61° on the 19th and the warmest min of the month of 66° on the 20th of 66°. The average min temperature of 49.9° turned out to be the 3rd warmest in my POR, only surpassed by the 51.8° set in 2007 and 51.5° set back in 1984.

No other daily temperature or precipitation records were set during the month.

The entire month was warm and dry as only 0.78″ (-2.72″) of
rain fell to go along with the warm temperatures already discussed. Measurable rain fell on only 5 widely scattered days through out the month, only about half of the long-term average amount of 9.5 days. My current year to date precipitation total of 34.91″ through October 31 is 2.74″ below the normal amount of 37.65″.

The average maximum temperature for the month was 68.7°
(+3.3°), the average minimum temperature was 49.9° (+ 6.0°). The resultant mean average temperature for the month was
59.3° (+ 4.7°).

The month’s highest barometric pressure reading of 30.52″ twice, on the 11th on the first day of the month with min temperatures in the 30s, and then again on the 26th on the coolest day of the month. The lowest pressure reading of the month of 29.60″ on the 21st occurred on one of the rare rainy days of the month and when we transitioned out of our late season heat wave finally into more normal fall-like temperatures.

The distribution of 13 sunny, 11 partly cloudy and 7 cloudy days fit in with the generally dry conditions better than in September.

There were 204 heating degree days (HDD) and 28 cooling degree days. I managed to catch a few foggy days in October (3) during the slightly more damp first part of the month. There were no thunder storm days, below normal but fit in with the dry conditions during the month. The peak wind gust during the month was 26 MPH out of the SW on the 22nd was during our transitional period from summer warmth to more typical fall chill. I had two other days with PWG readings above the 20 MPH mark (25 on the 9th and 23 on the 30th). It was a generally calm month as 11 days recorded a PWG of 9 MPH or less, all but one of those days occurring in the first half of the month. The dominant daily wind direction was 16 days with a westerly component, followed by 13 days with a easterly component, 1 day with a northerly component, and 1 day with a southerly component. The first half of the month had more easterly component winds, and the second half conversely had more westerly component winds.

My maximum temperature frequencies included 5 days at or above 80°, 8 days between 70°and 79°, 16 days between 60° and 69° and 2 days below 60°. On the minimum temperature frequency side of things, there were 3 days between 30° and 39°, 13 days between 40° and 49°, 10 days between 50° and 59°, and 5 days 60° or above.

The diurnal range average was below normal (18.8° vs the normal of 21.5°). The max daily range of 35.5° occurred on the 29th (74°-38°) on the first transition day out of the biggest cool snap of the month into the last brief heat wave of the month. on the day before the final day of the month with an 80° max temp. There were no more days with ranges in the 30s, but an additional 12 days with daily ranges at or above 20°, including 9 days in a row (11th-20th during our mid-month heat wave). The lowest daily temperature range of 2.9° (63°-60°) occurred on our wettest day of the month on the 1st. The 1st and 2nd combined with the last 3 days of September into a modest streak of 5 days in a row with daily temperature ranges less than 10°. There were 2 additional days during October with minimum daily temperature ranges less than 10°.

The tropics really got active in late September with powerful Hurricane Matthew, ravaging Haiti and other Caribbean islands before moving into
the SE US areas in early October, and threatening our area briefly. With adjoining (but weaker) hurricane named Nicole interacting, we did have a generally damp, warm period during the first 10 or so days of the month, then giving way to a drier but continued warm spell for the next 10 days. Not till the last third of the month did we start getting more traditional fall-like weather but without much frost or any freezing temperatures. Fall color has finally been developing, a few weeks delayed in early November. Check back in a few weeks to see how the rest of November works out. I believe that tropical activity is basically over for this season. But watch out for our first snowflakes of the season, not far away !!!


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REISTERSTOWN MARYLAND – OCTOBER 2016 – MONTHLY CLIMATOLOGICAL SUMMARY

OCTOBER 2016 CLIMATOLOGICAL SUMMARY
FOR DOWNTOWN REISTERSTOWN MARYLAND
by NJWO Observer Ray Muller

Average maximum temperature 68.7°
Average minimum temperature 52.0°
Average mean temperature 60.4° (-4.6°)
High temperature 85° (19/1512)
Low temperature 35° (26/0603)
Max daily range in temperature 29° 76°-40° (29)
Min daily range in temperature 4° 60°-56° (2)
Min max temperature 57° (26/1427)
Max min temperature 66° (19/0655)
Max temperature of 80° or more 4
Min temperature of less that 40° 1

Monthly precipitation 2.07″ (-1.81″) Year-to-date precipitation (through 10/31) 35.44″(-2.89″) Max rain rate in 30 minutes 0.27″ (1)
Max precipitation in 12 hours 0.38″ (1)
Max precipitation in 24 hours 0.83″ (1)
Number of precipitation days with .01″ or more 9
Number of precipitation days wth .10″ or more 5
Number of precipitation days with .50″ or more 2
Number of precipitation days with 1.00″or more 0

Weather types
Fog 13
Dense Fog 3
Thunder 1
Haze 6

Pressure
Highest barometric pressure 30.45″ (26/1030)
Lowest barometric pressure 29.56″ (21/1327)

Winds

Daytime (0700-1900) average 8.3 MPH from the SSW
Fastest Mile and direction 34 MPH from 290° (22/1441)
Peak Wind Gust 41 MPH from WNW (22/1441)
Gale wind days 3
Damaging wind days 0
Number of days:
PWG 15-20 MPH 7
PWG 21-25 MPH 6
PWG 26-30 MPH 4
PWG 31-35 MPH 2
PWG 36-40+MPH 1

Relative Humidity
Minimum relative humidity 40% (26/1500)
Maximum relative humidity 100% on 10 separate days

Number of days with cloud-to-cloud and cloud-to-ground lightning 1

Character of day: Clear 8 Partly cloudy 15 Cloudy 8
Sky cover (sunrise to sunset): 5.2
Percent of possible sunshine (estimated): 48
Minimum visibility: 1/16 mile in dense fog (16/0600)

Cloud types (storm related only):
Fractostratus 10
Towering cumulus 4
Cumulonimbus 1
Mammatus 0
Altocumulus Castelatas 4

Remarks: Temperatures here at the City Office remained well above normal. Precipitation continued to be below normal for this month and for the year. Light frost was observed here at the City Office while heavier frost was reported outside the city with heavy frost in low-lying valleys, all on the 26th.


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