Thursday, December 1, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
THURSDAY, DECEMBER 1, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0654E
SUNSET: 1613E
CLOUDING OVER WITH A CHILLY WEST WIND FOLLOWING YESTERDAY’S
RAINFALL….
We observed increasing cloud cover as the day went on,
with skies being almost overcast by the 1 P.M. observation.
Wind is cold and westerly with speeds around 25 mph and frequent
gusts over 35 mph. The highest gust seen so far today is almost
50 mph with yesterday’s gust being 63 mph from the south.
Yesterday’s weather left us with 0.96 inches of rainfall. This
puts a small dent in the yearly deficit of 11.40 inches and a
monthly deficit of 0.92 inches to finish off November.
Visibility increased considerably as the day went on, going
from 40 miles in the morning to 85 miles at the 1 P.M. observation.
The high so far today is 40F, which is 5 degrees below the
normal maximum of 45F. The low since midnight is 30F, which is
a degree above the normal low of 29F.
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PRELIMINARY STATS FOR NOVEMBER 2022
TEMPERATURE, Deg. F
Avg. Max. 55.0 [+4.9]
Avg. Min. 37.8 [+4.0]
Mean 46.4 [+4.4]
24-hour corrected mean: 45.9
Max. for month: 75F on the 5th
Min. for month: 20F on the 21st
HEATING DEGREE DAYS
Total heating units: 556 [-136]
Total for the season: 996 [-235]
Total for last season: 1007
COOLING DEGREE DAYS
Total cooling units: 005 [+005]
Total for the season: 889 [+212]
Total for last season: 717
PRECIPITATION, Inches
Total: 3.39 [-0.92]
Greatest in 24 hrs: 0.96 on the 30th
SNOWFALL, Inches
Total: TRACE [-1.8]
Greatest in 24 hrs: TRACE on the 15th and 17th
WIND, mph
Avg. uncorrected wind speed: 13.3 mph
Avg. corrected wind speed: 13.6 mph
Prevailing wind direction: SW [15%]
Peak gust and direction: 63 SSE on the 30th
SUNSHINE:
Campbell-Stokes card minutes: 10710 of a possible 17010, or 63%
Astronomical total minutes: 11101 of a possible 17627, or 63%
MFD
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Today’s Observations:
7 A.M.
Weather: Clear, few stratocumulus NE-E-SW
Temperature: 31F; Dew Point: 19F; Relative Humidity: 62%
Wind: W @ 7 kts
Sea-level pressure: 1014.2 mb; 29.95 in. Hg: rising, then more slowly
Visibility: 40 miles, haze
6-hr Max temp: 38F
6-hr Min temp: 30F
24-hr Precip: 0.00 ins.
24-hr Snowfall: 0.0 ins.
BHO SA 1155 CLR 40 142/31/19/2707/995/ FEW SC NE-E-SW HAZY/ 8/500
51039 70096 10038 20030
10 A.M.
Weather: Clear, few stratocumulus
Temperature: 36F; Dew Point: 18F; Relative Humidity: 48%
Wind: WNW @ 21G38 kts, peak of 44 mph WNW at 9:48 A.M.
Sea-level pressure: 1016.2 mb; 30.01 in. Hg: rising, then
more slowly
Visibility: 70 miles
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 CLR 70 162/36/18/3021G38/001/ FEW SC ALQDS PK WND
3038/48/ 8/500 51020
1 P.M.
Weather: Broken altocumulus
Temperature: 38F, Dew point: 16F; Relative Humidity: 40%
Wind: WNW @ 22G33 kts, peak of 42 mph W at 12:15 P.M.
Sea-level pressure: 1017.7 mb; 30.06 in Hg: rising, then
more rapidly
Visibility: 85 miles
6-hr Max temp: 40F
6-hr Min temp: 30F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
BHO SA 1755 70 BKN 85 177/38/16/3022G33/006/ PK WND 2836/15/
8/070 53015 10040 20030
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SUMMARY FOR WEDNESDAY, NOVEMBER 30, 2022
TEMPERATURE (DEGREES F)
MAX…….57 NORMAL…..45
MIN…….36 NORMAL…..30
MEAN……47 NORMAL…..38
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+10
TOTAL DEPARTURE FOR THE MONTH……………….+140 [+4.5 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………18 DEPARTURE…….-10
TOTAL HEATING UNITS FOR THE MONTH…………..556 DEPARTURE……-136
TOTAL HEATING UNITS FOR THE SEASON………….969 DEPARTURE……-235
TOTAL HEATING UNITS LAST SEASON TO DATE…….1007 DEPARTURE…….-38
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….63 S @ 6:03 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..68 @ 6:03 P.M.
DAVIS #2 ………………71 S @ 4:55 P.M.
RMY #2 (Instantaneous)…..68 SSE @ 6:03 P.M.
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…….OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
MERLIN………OUT OF SERVICE D/T RENOVATIONS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………49 S @ 4:45 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..45 @ 6:03 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………49 S @ 4:45 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..45 SSE @ 6:03 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE….OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE RMY #1 AVERAGE……OUT OF SERVICE D/T RENOVATIONS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….20.2 SE [485 total miles]
VECTOR #2……………..19.9
DAVIS #2………………20.1 S
RMY #2………………..20.0 SSE
RMY #1……….OUT OF SERVICE D/T RENOVATIONS
VECTOR #1…….OUT OF SERVICE D/T RENOVATIONS
DAVIS #1……..OUT OF SERVICE D/T RENOVATIONS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.96 DEPARTURE…..+0.80
TOTAL PRECIPITATION FOR THE MONTH…………..3.39 DEPARTURE…..-0.92
TOTAL PRECIPITATION FOR THE YEAR…………..37.07 DEPARTURE….-11.40
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-1.8
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…..TRACE DEPARTURE……-2.5
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PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system gust
RMY: R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
11/1 61/54/58/+11/0.11/0.0/000/00 21 NW AERO N/A RMY 21
11/2 68/50/59/+12/0.00/0.0/598/97 29 N AERO N/A RMY 30
11/3 67/48/58/+12/0.00/0.0/597/97 24 WSW AERO N/A RMY 24
11/4 70/48/59/+13/0.00/0.0/411/67 38 WSW AERO N/A RMY 40
11/5 75/57/66/+20/0.00/0.0/336/55 35 SW AERO N/A RMY 36
11/6 74/63/69/+24/0.00/0.0/079/13 40 SW AERO N/A RMY 43
11/7 74/49/62/+17/T/0.0/448/74 38 NW AERO N/A RMY 42
11/8 53/35/44/-1/0.00/0.0/591/98 32 N AERO N/A RMY 32
11/9 52/30/41/-3/0.00/0.0/589/98 27 SW AERO N/A RMY 29
11/10 67/41/54/+10/0.00/0.0/586/98 35 WSW AERO N/A RMY 38
11/11 69/53/61/+18/0.50/0.0/036/06 56 SSW AERO N/A RMY 60
11/12 72/51/62/+19/0.24/0.0/398/67 47 SSW AERO N/A RMY 51
11/13 51/36/44/+1/0.08/0.0/000/00 41 NW AERO N/A RMY 43
11/14 42/28/35/-7/0.00/0.0/589/100 31 NW AERO N/A RMY 32
11/15 41/26/34/-8/0.03/T/423/72 16 NNW AERO N/A RMY 16
11/16 56/32/44/+2/0.84/0.0/059/10 40 NW AERO N/A RMY 40
11/17 44/32/38/-3/T/T/449/77 37 WNW AERO N/A RMY 34
11/18 44/28/36/-5/0.00/0.0/529/91 26 W AERO N/A RMY 28
11/19 43/26/35/-6/0.00/0.0/579/100 24 WSW AERO N/A RMY 24
11/20 37/25/31/-9/0.00/0.0/548/95 45 WNW AERO N/A RMY 48
11/21 37/20/29/-11/0.00/0.0/575/100 39 WNW AERO N/A RMY 40
11/22 48/31/40/0/0.00/0.0/574/100 30 WSW AERO N/A RMY 31
11/23 49/33/41/+2/0.00/0.0/440/77 28 NW AERO N/A RMY 28
11/24 47/29/38/-1/0.00/0.0/553/97 25 SW AERO N/A RMY 25
11/25 50/38/44/+5/0.01/0.0/000/00 43 WNW AERO N/A RMY 42
11/26 51/32/42/+4/0.00/0.0/567/100 43 NW AERO N/A RMY 41
11/27 56/42/49/+11/0.62/0.0/017/03 43 SSW AERO N/A RMY 47
11/28 54/33/44/+6/0.00/0.0/395/70 43 W AERO N/A RMY 43
11/29 41/28/35/-3/0.00/0.0/135/24 23 N AERO N/A RMY 21
11/30 57/36/47/+10/0.96/0.0/000/00 63 SSE AERO N/A RMY 68
12/01 The low since midnight is 30F, the daily normal low is 29F
DAILY RECORDS
11/05/2022: TIED RECORD HIGH MINIMUM OF 57F, ALSO SET IN 1948.
11/06/2022: NEW RECORD HIGH MINIMUM OF 63F,
PREVIOUS RECORD WAS 60F IN 2015
NEW RECORD HIGH MAXIMUM OF 74F,
PREVIOUS RECORD WAS 72F IN 2020
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR DECEMBER 1
HIGH 70 IN 2001
LOW 3 IN 1887
PRECIP 1.46 INS. IN 1917
SNOW 5.7 INS. IN 2019
PEAK GUST 72 MPH NW IN 1964
RECORDS FOR DECEMBER 2
HIGH 61 IN 1998
LOW 3 IN 1890
PRECIP 2.09 INS. IN 1974
SNOWFALL 5.0 INS. IN 1894, 1929
PEAK GUST 89e MPH SSE IN 1942
TODAY’S REPORT PREPARED BY: Benjamin Turner
