Wednesday, December 7, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
WEDNESDAY, DECEMBER 7, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0700E
SUNSET: 1612E
CONTINUED MILD WITH STEADY LIGHT RAIN SINCE LAST EVENING….
It’s been quite awhile since we’ve seen a long duration
soaking rain, but that’s what we’re seeing today. Light
rain started late yesterday afternoon becoming steady
during the evening hours. 0.52″ was measured through 7am
this morning with an additional 0.12″ through 1pm this
afternoon. With a monthly and annual deficit ongoing in
terms of precipitation here at Blue Hill, this rain event
is really nice to see.
As to be expected, cloud cover has dominated the sky
today. A southerly wind however is bringing mild and
humid air into the area with both the temperature and
dew point reaching the mid 50s this afternoon. The low
so far today is 47F. If this holds through midnight
tonight, this will tie the record high minimum for the
date set in 1932.
The wind has been on the breezy side out of a south-
southeasterly direction. The average speed so far for
today is around 19mph. The peak gust thus far has been
39mph occurring between 6-7am. Gusts have been frequently
in the 30-35mph range all day.
Visibility has been limited all day due to rain and fog.
We’ve only been able to see generally under 2 miles all day.
The high so far today is 55F, which is 12 degrees above
the normal maximum of 43F. The low since midnight is 47F,
which is 20 degrees above the normal low of 27F.
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Today’s Observations:
7 A.M.
Weather: Overcast stratus, stratus fractus occasionally drifting
over summit, light rain
Temperature: 49F; Dew Point: 49F; Relative Humidity: 100%
Wind: SSE @ 22G34 kts, peak wind SSE 39mph at 6:46 A.M.
Sea-level pressure: 1025.2 mb; 30.27 in. Hg: falling, then more slowly
Visibility: 2 miles, fog
6-hr Max temp: 49F
6-hr Min temp: 47F
24-hr Precip: 0.52 ins.
24-hr Snowfall: 0.0 ins.
BHO SA 1155 E4 OVC 2R-F 252/49/49/1622G34/027/ STFRA OCNLY DRFTG
OVR SMT PK WND 1634/46/ 8/6// 56014 6042/ 70052 10049 20047
10 A.M.
Weather: Sky obscured, vertical visibility 200ft, light drizzle
Temperature: 51F; Dew Point: 51F; Relative Humidity: 100%
Wind: S @ 18G26 kts, peak wind S 32mph at 9:11 A.M.
Sea-level pressure: 1023.8 mb; 30.23 in. Hg: falling, then more rapidly
Visibility: 1/4 mile, fog
3-hr Precip: 0.07 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 X W2 1/4L-F 238/51/51/1718G26/023/ PK WND 1728/11/
8//// 58014 6007/
1 P.M.
Weather: Sky obscured, vertical visibility 200ft, light rain
Temperature: 55F, Dew point: 55F; Relative Humidity: 100%
Wind: S @ 17G24 kts, peak wind S 30mph at 12:16 P.M.
Sea-level pressure: 1021.9 mb; 30.18 in Hg: falling, then more slowly
Visibility: 1/4 mile, fog
6-hr Max temp: 55F
6-hr Min temp: 49F
6-hr Precip: 0.12 ins.
6-hr Snowfall: 0.0 ins.
BHO SA 1755 X W2 1/4R-F 219/55/55/1917G24/018/ PK WND 1926/16/
8//// 56019 6012/ 10055 20049
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SUMMARY FOR TUESDAY, DECEMBER 6, 2022
TEMPERATURE (DEGREES F)
MAX…….54 NORMAL…..43
MIN…….38 NORMAL…..28
MEAN……46 NORMAL…..35
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+11
TOTAL DEPARTURE FOR THE MONTH………………..+22 [+3.5 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………19 DEPARTURE…….-11
TOTAL HEATING UNITS FOR THE MONTH…………..151 DEPARTURE…….-23
TOTAL HEATING UNITS FOR THE SEASON…………1120 DEPARTURE……-257
TOTAL HEATING UNITS LAST SEASON TO DATE…….1159 DEPARTURE…….-39
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….30 SSE @ 9:45 A.M.
VECTOR #2 (Instantaneous)..31 @ 9:53 A.M.
DAVIS #2 ………………32 S @ 1:33 P.M.
RMY #2 (Instantaneous)…..31 SSE @ 10:05 A.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………………25 SE @ 5:41 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22 @ 1:30 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………23 SE @ 1:30 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..23 SSE @ 1:30 A.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…….16.0 SSE [383 total miles]
VECTOR #2……………..15.8
DAVIS #2………………15.6 SE
RMY #2………………..16.0 SE
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……..0.52 DEPARTURE…..+0.34
TOTAL PRECIPITATION FOR THE MONTH…………..0.83 DEPARTURE…..-0.24
TOTAL PRECIPITATION FOR THE YEAR…………..37.90 DEPARTURE….-11.64
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.3
TOTAL SNOWFALL FOR THE MONTH………………..0.0 DEPARTURE……-1.5
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…..TRACE DEPARTURE……-4.0
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PRELIMINARY CLIMATE SUMMARY FOR DECEMBER 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
12/1 40/30/35/-2/0.00/0.0/520/93 54 NW AERO N/A RMY 60
12/2 44/27/36/-1/0.00/0.0/535/96 24 SSW AERO N/A RMY 25
12/3 57/36/47/+11/0.31/0.0/000/00 54 SSW AERO N/A RMY 57
12/4 41/30/36/0/0.00/0.0/355/64 39 WNW AERO N/A RMY 41
12/5 48/29/39/+3/0.00/0.0/454/82 32 SSW AERO N/A RMY 32
12/6 54/38/46/+11/0.09/0.0/000/00 30 SSE AERO N/A RMY 31
12/7 The low since midnight is 47F, the daily normal low is 27F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR DECEMBER 7
HIGH 74 IN 1998
LOW 6 IN 1906
PRECIP 1.67 INS. IN 1953
SNOWFALL 6.3 INS. IN 2003
PEAK GUST 76e SE IN 1976
RECORDS FOR DECEMBER 8
HIGH 62 IN 1966
LOW -4 IN 1906
PRECIP 1.54 INS. IN 1969
SNOWFALL 2.5 INS. IN 2001
PEAK GUST 78e W IN 1979
TODAY’S REPORT PREPARED BY: Matt Douglas
