Stewartsville November 2016 Monthly Summary

stewartsville-2016-weather-data

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Wild weather in New England; hurricane force winds at Mt. Washington

Author: Jeffrey Permuy, NJWO member

Article originally posted on my blog: https://purepermuy.wordpress.com/2016/10/25/wild-weather-in-new-england-hurricane-force-winds-at-mt-washington/

mt-wash-obs_oct-averages

A strong Nor’easter brought snowfall to higher elevations of New England on the weekend of October 22 – 23, 2016. Other parts of southern New England experienced downpours, including thunderstorms, prior to the passage of a cold front associated with the low pressure system. Snow accumulations were reported in upstate New York, Vermont, New Hampshire and Maine. Over a dozen National Weather Service stations measured at least 6 inches of snow.

nws_newengland_snowfall_tot_oct22-2316

The intense storm that brought wet snow to parts of northern New England followed by strong winds, also contributed to 49 consecutive hours of wind gusts in excess of 73 mph recorded at Mt. Washington Observatory from early morning on October 23rd to early morning on October 25th. Sustained wind speed of 74 mph is the lower criterion for a Category 1 hurricane as per the Saffir-Simpson Hurricane wind scale. Additionally, the station’s instrument measured gusts greater than 90 mph for 21 straight hours. Minimum Category 2 hurricane wind speed of 96 mph and greater were registered 16 different occasions during designated observations.  The anemometer, measuring wind speed, even eclipsed 100 mph in 11 of the hourly observations, with a peak gust at 109 mph.

 

The NWS station in Mount Washington (KMWN), at 6263 ft. above sea level, is notorious for registering strong winds. The official observatory atop of Mt. Washington holds the U.S. record for fastest wind gust measured at 231 mph on April 12, 1934. It was a world record for nearly 62 years until an automatic weather station in Barrow Island, Australia registered a maximum wind speed of 253 mph, as the center of severe tropical Cyclone Olivia passed nearby.

 

During the two plus days of hurricane force wind gusts at Mt. Washington Observatory, wind chills ranged from -5°F to -18°F. Despite the recent cold snap, the weather station is experiencing the warmest October on record with an average temperature near 40°F.  The average daily temperature for the month of October at the observatory is 27°F. Historically, the wind speed for this month is 35 mph.

 

noaa-wx-report_mt-wash_oct-23-2516

References

https://www.mountwashington.org/experience-the-weather/observer-comments.aspx (based on October 2016 observer comments)

http://www.necn.com/weather/Weather-New-England-245521811.html

https://en.wikipedia.org/wiki/Cyclone_Olivia

https://www.mountwashington.org/about-us/history/world-record-wind.aspx

http://www.nhc.noaa.gov/aboutsshws.php

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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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42nd Northeastern Storm Conference – Formal Invitation

To whom it may concern,

The 42nd Northeastern Storm Conference will take place on March 10-12, 2017 at the Holiday Inn in Saratoga Springs, NY! Attached is the formal invitation for papers and announcement of the keynote speakers, abstract submission periods, and conference registration. Hope to see you at this long-held tradition in March!

Benjamin Frechette

Lyndon State AMS & NWA President

Chairperson of the 42nd Northeastern Storm Conference

Atmospheric Sciences Major

Lyndon State College | Class of 2018

Benjamin.Frechette

Forwarded by:

Mark Kramer, Chair

New York City/Long Island AMS Chapter

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

P.S. With snow in the forecast for many areas of the NE, may as well think the Northeast Storm Conference.

42nd Northeastern Storm Conference – Formal Invitation.pdf

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Weekly Seminars at Stony Brook, NYT Mag for this Sunday, Met & Atmos Sci Family Tree

See attached listing of all remaining weekly seminars at Stony Brook University, a very interesting New York Times article

http://www.nytimes.com/2016/10/23/magazine/why-isnt-the-us-better-at-predicting-extreme-weather.html

scheduled to be published this Sunday in the magazine section and information on being added to the Meteorology and Atmospheric Sciences Family Tree (info also provided below).

Those who attended the very successful Sixth Tri-State Weather Conference – I trust you enjoyed the presentations and camaraderie.

Enjoy another type of extreme weather day today!

At the Sixth Tri-State Weather Conference, Dr. Robert Hart presented interim results of a very interesting project: the Meteorology / Atmos. Science – Academic Family Tree by Robert E. Hart and Joshua H. Cossuth, Florida State University, Department of Earth, Ocean, and Atmospheric Science

The majority (regardless of school) of names in their database have M.S. or Ph.D. degrees, but there are more than a few B.S. students also. Given the enormous number of B.S. students globally compared to M.S./PhD students, the Project has generally left out B.S. students unless they *explicitly* ask to be added and have a declared advisor/mentor. B.S. students without a defined/chosen mentor/advisor are excluded given that the tree would become unmanageable graphically and there would be an enormous number of unconnected students. This is a practical issue only and not meant in anyway to be discriminatory against any students.

Please visit: http://moe.met.fsu.edu/familytree If you want to be added to the family tree, follow the directions on the website.

Mark Kramer, Chair

New York City/Long Island AMS Chapter

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

TAOSmasterFall2016.pdf

Met & Atmos Science Family Tree.pdf

Why isn’t the US better at predicting extreme weather10-23-16.pdf

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

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

Average high temperature 80.4° (+ 3.8°)
Average low temperature 63.4° (+ 7.1°)
Mean temperature 71.9° (+ 5.5°)
Precipitation 2.90″ (- 1.30″)
Greatest daily amount (date) 1.54″ (29)
Year to date precipitation 34.13″ (+ 0.02″)
High temperature for the month (date) 93° (10)
Low temperature for the month (date) 52° (25)
Highest barometric pressure (date) 30.32″ (16)
Lowest barometric pressure (date) 29.86″ (1)
Peak wind gust (date/direction): 19 (29/NE)
Heating degree days for the month: 14
Cooling degree days for the month: 220
Greatest diurnal range (date): 28.9° (23)
Least diurnal range (date) 3.8° (30)

Fog days: 4
Thunder: 3
Sunny/clear days: 10
Partly Cloudy days: 8
Cloudy days: 12

Days with measurable precipitation (=>.01″) = 7
Days with maximum temperatures of 90 or more = 6
Days with minimum temperatures of 70 or more = 4

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

September 2016 featured record-breaking warmth with regard
to average mean and average minimum temperatures for my 38
year period of record. The average high temperature wasn’t
quite as extreme but was tied with 2010 as the 5th warmest ever. 3 daily record high temperatures of 92° on the 7th, 8th and 9th were set and 3 daily record high minimum temperatures of 72° were set on the 8th and 10th and 69° on the 19th. No other daily temperature or precipitation records were set during the month. Most of the month was warm and dry as only 0.94″ of rain fell through the 26th, but a late month rally where 1.96″ of rain fell on the last 4 days of the month got the month a lot closer to normal, and not close to any monthly minimum record. September frequently features a lot of heavy daily rainfall amounts from tropical activity, so the maximum monthly amount of 1.54″ that fell on the 29th didn’t come close to the daily record for that date (2.99″ in 2015). The heat during the month coincided roughly with this dry period, and the coolest temperatures of the month also went along with this end of the month wetter period. The lowest temperature of the month (52° on the 25th) is the warmest low temperature ever, surpassing the 51° set just last year in 2015.

Once again this month had a few monthly warm extremes ever
in my 38 year period of record. There were several daily
records set, with 3 maximum low temperature and 3 maximum
daily temperature records. I had the warmest September mean
temperature ever (71.9°) and the warmest average minimum
temperature (63.4°) ever. The maximum average temperature
(80.4°) only came in as tied with 2010 as the fifth warmest ever. The 6 days with maximum temperatures of 90° or greater was
quite a bit above the usual amount for September of just under 2 days. 7 days with measurable precipitation was predictably below the normal of about 9.5 days. The wettest day of the month of 1.51″ on the 29th failed to break a daily record, and no daily precipitation records were set. The highest temperature of the month of 93° was reached on the 10th but was not a daily record. The highest min temperature of the month was 73° on the 9th, but did not set a daily record for that date. No record low temperatures were set.

The average maximum temperature for the month was 80.4°
(+3.8°), the average minimum temperature was 63.4° (+ 7.1°). The resultant mean average temperature for the month was
71.9° (+ 5.5°).

The month’s total precipitation amount of 2.90″ was 1.30″ below the normal September amount of 4.20″. My current year to date precipitation total of 34.13″ through September 30 is 0.02″
below the normal amount of 34.15″.

The month’s highest barometric pressure reading of 30.32″ on the 16th occurred in the middle of the longest (10 days) period of no rain. The modest lowest pressure reading of the month of 29.86″ on the 1st occured on one of our 3 measurable rainy days during the first 26 days of the month.

The distribution of 10 sunny, 8 partly cloudy and 12 cloudy days only modestly fit in with the generally dry conditions found during most of the month, The period from the 2nd through the 25th
contained all 10 of the sunny days during the month.

There were 220 cooling degree days (CDD) and 14 heating degree days. I managed to catch a few foggy days in September (4) but I probably missed a few early morning occurrences when I was asleep. There were 4 thunderstorm days, just a tad above the long-term average amount of 2.3. The peak wind gust during the month was a modest 19 MPH out of the NE on the rainiest day of the month (29). It was a generally calm month as 8 days recorded a PWG of 9 MPH or less, including a very rare day on the 14th when no wind was recorded. Not sure if that really is valid. There were some indications that possibly something got temporarily stuck in the cups. The dominant daily wind direction was 17 days with a NNE to SSE component, followed
by 10 days with a westerly component, 2 days with a northerly component, and the one calm day.

My maximum temperature frequencies included 6 days at or above 90°, 12 days between 80° and 89°, 8 days between 70°and 79°, and 4 days
between 60° and 69°. On the minimum temperature frequency side of things, there were 7 days between 50° and 59°, 19 days between 60° and 69° and 4 days with minimum temperatures of 70° or greater.

The diurnal range average was below normal (17.0° vs the normal of
20.3°). The max daily range of 28.9° occurred on the 23rd on the last day of the month with an 80° max temp (88°-59°). There were an additional 10 days with daily ranges at or above 20°, The lowest daily temperature range of 3.8° (62°-58°) occurred on a cloudy, cool, damp day (coolest max temp of the month on the 30th). There were 4 days during September with daily temperature ranges less than 10°, including the last 3 days of the month.

The tropics appear to be getting active finally as we head into October, with record-breaking Matthew threatening our area for a time here in early October before veering elsewhere. Meanwhile cold fronts are finally becoming more frequent, and the first snows of the season have been appearing in the Rockies and out on the Northern Plains the past few days. Fall color has been slow to develop so far, but should get going soon. Check back in a few weeks to see how October works out. Please continue to watch the tropics closely for the next few weeks but also those stronger cold fronts with snow getting closer.


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REISTERSTOWN MARYLAND – SEPTEMBER 2016 – MONTHLY CLIMATOLOGICAL SUMMARY (corrected copy – supersedes previously sent post)

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

Average maximum temperature 80.8°
Average minimum temperature 63.8°
Average mean temperature 72.3°
High temperature 93° (9)
Low temperature 52° (25)
Max daily range in temperature 26° 90°-64° (14)
Min daily range in temperature 3° 64°-61° (30)
Min max temperature 61° (30)
Max min temperature 77° (9)
Max temperature of 90° or more 5
Min temperature of 70° or more 4

Monthly precipitation 3.93″
Year-to-date precipitation (through 9/30) 33.37″
Max rain rate in 30 minutes 0.26″ (29)
Max precipitation in 12 hours 0.96″ (29)
Max precipitation in 24 hours 2.12″ (29)
Number of precipitation days with .01″ or more 7
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 1
Number of precipitation days with 2.00″or more 1

Weather types
Fog 12
Dense Fog 2
Thunder 3
Haze 6

Pressure
Highest barometric pressure 30.30″ (16)
Lowest barometric pressure 29.86″ (1)

Winds

Fastest Mile and direction 22 MPH from 060° (29/0806)
Peak Wind Gust 31 MPH from NE (29/0807)
Gale wind days 0
Damaging wind days 0

Relative Humidity
Minimum relative humidity 34% (16)
Maximum relative humidity 100% on 9 separate days

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

Character of day: Clear 8 Partly cloudy 10 Cloudy 12
Sky cover (sunrise to sunset): 5.8
Minimum visibility: 1/4 mile in drizzle and fog (30)

Remarks: Welcomed rains towards the last few days of the month. No severe weather observed this month. Rainfall was 0.37″ below normal here in the city. Year to date rainfall only 0.06″ below normal through September 30. Mean average temperature was 4.3° above normal. The normal temperature was based on old Woodstock COOP station data now closed. The normal precipitation data value was based on COCORAHS model data from the Colorado Climate Center. Weather computer problems resulted in some missing data this month. Due to change in observing program, only convective and storm-related cloud types will be observed in future observations. Cloud types not severe will be used for local forecasting only. These will not appear on the daily surface weather observations.


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Stewartsville September 2016 Summary

Stewartsville Monthly Weather Observation Summary
Sep-16
DAY MAX MIN MEAN PRECIP COMMENTS
1 82 63 72.5 0.10
2 81 57 69.0 0.00
3 79 57 68.0 0.00
4 82 53 67.5 0.00
5 87 54 70.5 0.00
6 87 66 76.5 0.00
7 89 66 77.5 0.00
8 93 65 79.0 0.00
9 92 73 82.5 0.00
10 96 71 83.5 0.00
11 83 60 71.5 0.00
12 81 50 65.5 0.00
13 85 56 70.5 0.00
14 91 60 75.5 0.00
15 76 53 64.5 0.00
16 78 47 62.5 0.00
17 82 50 66.0 0.00
18 85 67 76.0 0.00
19 76 66 71.0 1.35
20 83 64 73.5 0.00
21 85 59 72.0 0.00
22 86 53 69.5 0.00
23 88 50 69.0 0.00
24 74 51 62.5 0.00
25 73 43 58.0 0.00
26 71 41 56.0 0.00
27 75 52 63.5 0.33
28 71 46 58.5 0.00
29 62 55 58.5 0.45
30 61 52 56.5 1.12
3.35
Extreme High 96.0 Date: 10-Sep
Extreme Low 41.0 Date: 26-Sep
Mean Max: 81.1
Mean Low: 56.7
Mean: 68.9
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REISTERSTOWN MARYLAND – SEPTEMBER 2016 – MONTHLY CLIMATOLOGICAL SUMMARY

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

Average maximum temperature 80.8°
Average minimum temperature 63.8°
Average mean temperature 72.3°
High temperature 93° (9)
Low temperature 52° (25)
Max daily range in temperature 26° 90°-64° (14)
Min daily range in temperature 3° 64°-61° (30)
Min max temperature 61° (30)
Max min temperature 77° (9)
Max temperature of 90° or more 5
Min temperature of 70° or more 4

Monthly precipitation 3.93″
Year-to-date precipitation (through 7/31) 33.37″
Max rain rate in 30 minutes 0.26″ (29)
Max precipitation in 12 hours 0.96″ (29)
Max precipitation in 24 hours 2.12″ (29)
Number of precipitation days with .01″ or more 7
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 1
Number of precipitation days with 2.00″or more 1

Weather types
Fog 12
Dense Fog 2
Thunder 3
Haze 6

Pressure
Highest barometric pressure 30.30″ (16)
Lowest barometric pressure 29.86″ (1)

Winds

Fastest Mile and direction 22 MPH from 060° (29/0806) Peak Wind Gust 31 MPH from NE (29/0807) Gale wind days 0
Damaging wind days 0

Relative Humidity
Minimum relative humidity 34% (16)
Maximum relative humidity 100% on 9 separate days

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

Character of day: Clear 8 Partly cloudy 10 Cloudy 12
Sky cover (sunrise to sunset): 5.8
Minimum visibility: 1/4 mile in drizzle and fog (30)

Remarks: Welcomed rains towards the last few days of the month. No severe weather observed this month. Rainfall was 0.37″ below normal here in the city. Year to date rainfall only 0.06″ below normal through September 30. Mean average temperature was 4.3° above normal. The normal temperature was based on old Woodstock COOP station data now closed. The normal precipitation data value was based on COCORAHS model data from the Colorado Climate Center. Weather computer problems resulted in some missing data this month. Due to change in observing program, only convective and storm-related cloud types will be observed in future observations. Cloud types not severe will be used for local forecasting only. These will not appear on the daily surface weather observations.


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