September 2017 Reisterstown Maryland Monthly Summary for the NJWO Blog

Reisterstown Maryland Monthly Summary for September 2017
by Ray Muller, Observer in Charge

TEMPERATURES (Departure/Date/Time)
Average max 77.8° (- 1.2°)
Average min 58.2° (+ 2.2°)
Mean 68.0° (+ 0.5°)
Max 88° (24/1602)
Min 50° (10/0535)
Min Max 59° (02/1530)
Max Min 70° (25/0702)
Max in the 50s 1
Max in the 60s 3
Max in the 70s 11
Max in the 80s 15
Max in the 90s 0
Min in the 50s 13
Min in the 60s 16
Min in the 70s 1

PRECIPITATION (Departure/Date)
Monthly total 2.14″ (- 2.16″)
Year to date 38.24″ (+ 3.79″)
Max in 6 hrs 0.28″ (2)
Max in 12 hrs 0.48″ (2)
Max in 24 hrs 0.76″ (2)
Number of days of precipitation
>=.01″ = 9
>=.10″ = 3
>=.50″ = 2
>=1.00″= 0
>=2.00″= 0

WEATHER TYPES – number of days
Fog 15
Dense Fog 2
Haze 13
Thunder 2
Gale force winds 1
Damaging winds 0

CLOUD COVER (sunrise to sunset – number of days)
Clear 12
Partly cloudy 14
Cloudy 4
Average (sunrise to sunset) 4.4
Estimated percent of possible sunshine 67

BAROMETER
High 30.40” (10)
Low 29.72” (5)

WIND – DAYTIME (Sunrise to Sunset 0700-1900)
Prevailing direction 290°
Mean wind speed 6.7 MPH

HUMIDITY
Lowest humidity
32% at 1400 (23)

RAIN RATES
0.28” in 15 minutes (6)
0.20” in 14 minutes (2)

NOTES: Cloud types – number of days:
Stratiform 6
Cumulus 17
Cumulonimbus 2
Stratocumulus 15
Altocumulus 12
Altostratus 7
Cirrocumulus 4
Cirrostratus 8
Cirrus 15
Mammatus 0

Observed several days with towering cumulus

SUMMARY:
It was a dry month again with precipitation over
2 inches below normal, resulting in reservoirs
dropping to lower levels this month.
Field conditions were also quite dry.


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AUGUST 2017 CLIMATE STATISTICS AND SUMMARY FOR THE NJWO BLOG – ROCKVILLE 2.8 WNW MARYLAND by Kevin Shaw Observer

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

Average high temperature 81.8°
Average low temperature 66.0°
Mean temperature 73.9°

Precipitation 4.09″
Greatest daily amount(date) 0.96″ (11)
Snow 0.0″
Year to date precipitation 30.29″

High temperature for the month (date) 92° (18)
Low temperature for the month (date) 59° (30)

Highest barometric pressure (date) 30.26” (26)
Lowest barometric pressure (date) 29.73” (18)

Peak wind gust (date/direction): N/A

Heating degree days for the month: 2
Cooling degree days for the month: 277

Greatest diurnal range (date): 22.6° (9)
Least diurnal range (date) 5.2° (29)

Number of days:

Fog 5
Thunder 7
Cloudy 6
Partly Cloudy 19
Sunny/Clear 6
Max temp => 90° 4

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

August 2017 was a bit cooler and drier than normal. The 4.09″ of rain this month
was less than half July’s amount, but at least nothing close to being abnormally
dry. 14 days with measurable rain was a bit above average and generally spread
fairly evenly throughout the month. Many of the wetter days of the month had max
temps in the 70s, and actually the coolest day of the month on the 29th (66°) had
one of the greater precipitation amounts for the month (0.55″). Glad to report of
only 4 days of max temps of 90 or greater (rounded to the nearest degree values).
The highest temp of the month of 91.6° was not really that high, but was made more
oppressive with the max dew point temperature of August of 81° reached on that
day (18). There were a total of 3 days where dew points remained above the 70°
mark all day. Conversely there were 13 days where the dew point fell into the 50s.
My lowest temperature for the month was 59.1°on the 30th, barely dipping below
the 60° the only time during the month. After 90° was reached on the 23rd, the
remaining days of the month mostly had days with max temps in the 70s, including
the one previously mentioned (66° on the rainy 29th)

The hottest period of the month (August 16-22) was when all but one day had max
temps above 85°, including 3 of the 4 days at or above 90° during the month. This
period was also quite dry, totalling only 0.18″ of rain.

There were 2 heating degree days (HDD) and 277 cooling degree days (CDD)
during the month.

My maximum temperature frequencies included 4 days of 90° or more, 14 days
between 80° and 89°, 12 days between 70° and 79°, and 1 day below 70°. On the
minimum temperature frequency side of things, there was 2 days below 60°, 22
days between 60° and 69°, and 7 days of 70° or over.

The diurnal range daily monthly average was 15.7°. Diurnal ranges were somewhat
supressed due to the abundance of cloudiness during the month, and real lack of
cool or hot days that always help. The maximum daily range of only 22.6°occurred
on the 9th (82.7°- 60.1°). There were only 4 days total with daily ranges at or above
20.0°. The lowest daily temperature range of 5.2° (66.0°- 60.8°) which occurred on
the 29th was the 5th wettest day of the month and by far the coolest max of the month.
Just like in July, there were only a total of 3 days with minimum daily temperature
ranges less than 10.0°.

My cocorahs (official) 4 inch rain gauge was moved mid-month (on the 16th) which I
hope will provide hassle free and more accurate readings from that point forward.
Also the VP2 tipping bucket rain gauge was re-attached to the housing on the VP2
sensor suite, and though not sited perfectly, at least it gives me a good indication
that it did rain and the timing of the rain which now shows up in my weatherlink
software. Please ask me any questions you want at any time through any means
you can.

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August 2017 Reisterstown Maryland Monthly Summary for the NJWO Blog

AUGUST 2017 REISTERSTOWN MARYLAND MONTHLY SUMMARY FOR THE NJWO BLOG
by Ray Muller, Observer in Charge

TEMPERATURE (Departure/Time/Date)
Average max 82.1° (- 3.7°)
Average min 64.2° (- 0.5°)
Mean 73.3° (- 1.7°)
Max 92° (16:22/22)
Min 56° (06:07/28)
Min Max 67° (15:36/29)
Max Min 72° (06:41/22)
Max in the 60s 1
Max in the 70s 13
Max in the 80s 15
Max in the 90s 2
Min in the 50s 4
Min in the 60s 22
Min in the 70s 5

PRECIPITATION (Departure/Date)
Monthly total 5.54″ (+ 1.77″)
Year to date 36.10″ (+ 5.95″)
Max in 6 hrs 0.46″ (15)
Max in 12 hrs 1.16″ (15)
Max in 24 hrs 1.62″ (15)
Number of days of precipitation
>= .01″ = 15
>= .10″ = 8
>= .50″ = 3
>= 1.00″ = 1
>= 2.00″ = 0

WEATHER TYPES – number of days
Fog 13
Haze 9
Dense fog 2
Thunder 7
Smoke 1
Gale force winds 0
Damaging winds 0

CLOUD COVER (sunrise to sunset – number of days)
Clear 7
Partly cloudy 13
Cloudy 11
Average (sunrise to sunset) 5.6

REMARKS
1900 Barometer values (observed)
High 30.23” (9)
Low 29.88” (22)
Wind
2 minute fastest mile 24 MPH from 280° @ 10:43 on the 4th
Peak wind gust 32 MPH from the West @ 10:43 on the 4th
Lowest humidity
42% at 1500 (26)
Rain rate
.25” in 15 minutes (15)
Notes: Heavy rain on the 15th caused some ponding of water
and street flooding noted at the City Office. New Max/Min
thermometers were used to check against the LaCrosse
Hygrothermometer unit and radiation shield. Checks yielded
very good temperature comparisons. This temperature data
will now be included in NJWO monthly summaries and in
Cocorahs to reflect good comparative results with other
nearby stations.

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July 2017 Rockville 2.8 WNW Maryland Weather Summary for the NJWO Blog

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

Average high temperature 87.3°
Average low temperature 70.9°
Mean temperature 79.1°

Precipitation 8.65″
Greatest daily amount(date) 2.92″ (28)
Snow 0.0″
Year to date precipitation 26.20″

High temperature for the month (date) 94° (21)
Low temperature for the month (date) 61° (31)

Highest barometric pressure (date) 30.23” (26)
Lowest barometric pressure (date) 29.65” (29)

Peak wind gust (date/direction): N/A

Heating degree days for the month: 0
Cooling degree days for the month: 438

Greatest diurnal range (date): 26.5° (31)
Least diurnal range (date) 6.7° (6)

Number of days:

Fog 4
Thunder: 5
Cloudy 6
Partly Cloudy 16
Sunny/Clear 9
Max temp => 90° 13

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

July 2017 was a bit warmer than normal and definitely wetter than normal. The 8.65″ of rain this month was easily my wettest month of the year, and the 2.92″ of rain that fell on the 28th was not only the wettest day of the month, but it was easily the wettest day of the year so far. 13 days with measurable rain was a bit above average, but nothing really earth-shaking.Three of the wetter days of the month had max temps in the 70s, including the lowest of the month of 73.7° on the 29th, my 67th birthday. To me, this was better weather for my birthday than usual. Coincidentally there were also 13 days with max temps of 90° or greater, nothing unusual and certainly not related to the same amount of measurable rain days. The highest temp of the month of 93.7° was not really that high, though plenty oppressive with the usual +70° dew point temperatures all day. There were a total of 7 days where dew points remained above the 70° mark. Conversely there also were 7 days where the dew point reached down into the 50s. 5 days hit the max dew point value for the month of 78°. As has been the usual trend the past several years
stretching back to my old station, my lowest temperature for the month of 60.7° on the 31st, staying above the 60° mark all month. We used to get minimum temperatures well down into the 50s every July back several years ago, and even occasionally into the 40s.

The coolest temperatures of the month occurred right at the end of the month, after our biggest rain on the 28th and 29th. The hottest period of the month (July 11-22) was when all days had max temps above 85°, including 10 days above 90°. This period was also quite dry, totaling only 0.86″ of rain through the 21st, then a 2 day period on the 22nd and 23rd put an end to this modest heat wave/drier spell with 1.67″ of welcome rain.

There were no heating degree days (HDD) and 438 cooling degree days (CDD) during the month.

My maximum temperature frequencies included 13 days of 90° or more, 14 days between 80° and 89°, and 4 days between 70° and 79° On the minimum
temperature frequency side of things, there were 7 days between 60° and 69°, and 24 days of 70° or over.

The diurnal range daily monthly average was 16.5°. I moved my temperature sensor down to ground level at the beginning of the month, so I suspect these diurnal ranges will increase some in the coming months. The maximum daily range of 26.5° occurred on the 31st (87.2°-
60.7°). There were 5 days total with daily ranges at or above 20.0°. The lowest daily temperature range of 6.7° (78.8°- 72.1°) which occurred on the 6th interestingly enough occurred on the wettest day of the month (0.95″) till the 28th’s monster total. There were only a total of 3 days with minimum daily temperature ranges less than 10.0°.

Thankfully, the last third of the month was cooler and wetter, putting a halt on a potential drought situation which had increased to moderate levels. Major improvements to my instrument sitings have occurred recently as already mentioned. In addition, my ground-based cocorahs rain gauge site finally has been situated off property and definitely away from sprinklers. Please ask me any questions you want at any time through any means you can.


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July 2017 Reisterstown Maryland Monthly Summary for the NJWO Blog

Reisterstown Maryland Monthly Summary for July 2017
by Ray Muller, Observer in Charge

PRECIPITATION (Departure/Date)
Monthly total 9.28″ (+ 5.15″)
Year to date 30.56″ (+ 4.18″)
Max in 12 hrs 0.89″ (17)
Max in 24 hrs 2.23″ (17)
Number of days of precipitation
>= .01″ = 15
>= .10″ = 9
>= .50″ = 5
>= 1.00″ = 2
>= 2.00″ = 2

WEATHER TYPES – number of days
Fog 16
Haze 8
Dense fog 0
Thunder 7
Gale force winds 3
Damaging winds 0

CLOUD COVER (sunrise to sunset – number of days)
Clear 9
Partly cloudy 10
Cloudy 12

REMARKS
Observed temperatures
7 AM 58° (30)
4 PM 93° (20)

1900 Barometer values (observed)
High 30.14” (5)
Low 29.82” (23)

Beaufort wind
Force 8 (1) from the West
Force 8 (17) from the Southeast

Lowest humidity
36% at 1300 (9)

Rain rates
.46” in 15 minutes (6)
.52” in 18 minutes (17)
.41” in 20 minutes (28)

Notes: Precipitation was well above normal for the month and now above normal for the year.
Reservoirs had gone down by the middle of the month, however with heavy rains on the 17th, 25th,
28th and 29th the reservoirs were back up to normal due to heavy rainfall on those dates.

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June 2017 NJWO Blog Climate report (page 2 of 2) for Rockville 2.8 WNW Maryland by Kevin Shaw Observer

JUNE 2017 – BRIEF CLIMATE SUMMARY
ROCKVILLE 2.8 WNW MARYLAND
for the NJWO Blog by Kevin Shaw, Observer in Charge

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

JUNE 2017 – CLIMATE STATISTICS ROCKVILLE 2.8 WNW MARYLAND for the NJWO Blog by Kevin Shaw, Observer in Charge

Average high temperature 83.9°

Average low temperature 67.0°

Mean temperature 75.5°

Precipitation 1.34″

Greatest daily amount(date) 0.60″ (19)

Snow 0.0″

Year to date precipitation 17.55″

High temperature for the month (date) 93° (13)

Low temperature for the month (date) 54° (8)

Highest barometric pressure (date) 30.20” (28)

Lowest barometric pressure (date) 29.55” (24)

Peak wind gust (date/direction): N/A

Heating degree days for the month: 4

Cooling degree days for the month: 318

Greatest diurnal range (date): 25.2° (4)

Least diurnal range (date) 7.5° (5)

Number of days:

Fog 2

Thunder: 1

Cloudy 7

Partly Cloudy 13

Sunny/Clear 10

JUNE 2017 – BRIEF CLIMATE SUMMARY
ROCKVILLE 2.8 WNW MARYLAND
for the NJWO Blog by Kevin Shaw, Observer in Charge

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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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