Monday, February 10, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, FEBRUARY 10, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0647E
SUNSET: 1710E
INCREASING AMOUNTS OF CLOUDINESS TODAY, BUT GETTING CLOSER TO NORMAL
TEMPERATURES….
Today started with plenty of sunshine, however low and mid level
clouds increased as we pushed into the late morning hours, leaving
us with mainly cloudy skies by early this afternoon.
The good news is that temperatures did get a touch milder today,
getting closer to, but still shy of normal levels. Readings reached
the low to mid 30s late this morning, but are now falling off a bit
back to around 30 by the 1pm observation. Dew point values however
have dropped into the mid teens, so the air is feeling colder due to
the dryness.
Adding to the chill is also the increasing wind speed. A west-
northwest wind has been averaging around 11mph so far for the day.
Gusts started to exceed 20mph as we got into the late morning and
early afternoon hours. The peak gust so far is 25mph, which occurred
right after 1pm.
Visibility has been decent, generally ranging between 40-50 miles
for the day.
The maximum temperature for today is 33F degrees, which is 3 degrees
below the normal high of 36F. The minimum temperature since midnight
is 19F degrees, which is equal to the normal low of 19F.
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Today’s Observations:
7 A.M.
Weather: Scattered altocumulus, scattered cirrus, few stratocumulus
distant NE-E, virga distant WNW-N
Temperature: 21F; Dew Point: 18F; Relative Humidity: 89%
Wind: WNW @ 11 kts
Sea-level pressure: 1025.8 mb; 30.29 in. Hg: rising, then more rapidly
Visibility: 40 miles
6-hr Max temp: 22F
6-hr Min temp: 19F
24-hr Precip: 0.05 inches
24-hr Snowfall: 0.9 inches
Snow Depth: 3 inches
BHO SA 1155 150 SCT 250 SCT 40 258/21/18/2911/029/ FEW SC DSNT NE-E
VIRGA DSNT WNW-N/ 8/552 4/003 53016 70005 10022 20019
10 A.M.
Weather: Scattered altocumulus, few stratocumulus distant W-N-E
Temperature: 30F; Dew Point: 22F; Relative Humidity: 70%
Wind: WNW @ 9G17 kts
Sea-level pressure: 1026.2 mb; 30.30 in. Hg: rising, then steady
Visibility: 50 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 150 SCT 50 262/30/22/2909G17/030/ FEW SC DSNT W-N-E
VIRGA DSNT SE-SW/ 8/550 51004
1 P.M.
Weather: Broken stratocumulus, overcast altostratus, few breaks in
overcast distant SE-SW, higher clouds visible distant SE-SW, virga all
quadrants
Temperature: 30F; Dew Point: 16F; Relative Humidity: 55%
Wind: WNW @ 11G19 kts
Sea-level pressure: 1025.1 mb; 30.27 in. Hg: falling, then more slowly
Visibility: 50 miles
6-hr Max temp: 33F
6-hr Min temp: 21F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 3 inches
BHO SA 1755 E40 BKN 55 OVC 50 251/30/16/3011G19/027/ FEW BINOVC DSNT
SE-SW HIER CLDS VSBL DSNT SE-SW VIRGA ALQDS/ 8/52/ 4/003 56011 10033
20021
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SUMMARY FOR SUNDAY, FEBRUARY 9, 2025
TEMPERATURE (DEGREES F)
MAX…….29 NORMAL…..36
MIN…….23 NORMAL…..18
MEAN……26 NORMAL…..27
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..-1
TOTAL DEPARTURE FOR THE MONTH…………………….-11 [-1.4 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………39 DEPARTURE……..+1
TOTAL HEATING UNITS FOR THE MONTH…………..357 DEPARTURE…….+11
TOTAL HEATING UNITS FOR THE SEASON…………3500 DEPARTURE……-249
TOTAL HEATING UNITS LAST SEASON TO DATE…….3249 DEPARTURE……+251
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all on Main Tower.
E=Estimated
F420C (Official)………..24 N @ 08:56 A.M.
VECTOR #1 (1-Sec)……….24 N @ 08:08 A.M.
VECTOR #2 (1-Sec)……….25 N @ 08:56 A.M.
DAVIS #1……………….21 N @ 08:08 A.M.
DAVIS #2 ………………20 NNE @ 08:13 A.M.
RMY #1 (Instantaneous)…..24 N @ 10:02 A.M.
RMY #2 (Instantaneous)…..24 N @ 10:16 A.M.
MERLIN…………………24 N
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 N @ 08:15 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..17 @ 10:04 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 @ 07:53 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 N @ 10:04 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………15 N @ 07:53 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 N @ 10:04 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 N @ 07:53 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………8.0 N [192 total miles]
VECTOR #1……………….8.3
VECTOR #2……………….8.6
DAVIS #1………………..8.2 N
DAVIS #2………………..8.1 N
RMY #1………………….8.0 NNW
RMY #2………………….8.3 NNW
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.05 DEPARTURE…..-0.08
TOTAL PRECIPITATION FOR THE MONTH…………..0.83 DEPARTURE…..-0.38
TOTAL PRECIPITATION FOR THE YEAR (2025)……..3.18 DEPARTURE…..-2.53
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.9 DEPARTURE……+0.3
TOTAL SNOWFALL FOR THE MONTH………………..7.0 DEPARTURE……+0.9
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……28.0 DEPARTURE…..-11.8
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PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN)/SUN(%)/PEAK GUST/VEC1/RMY GUST
PEAK GUST: F420C (Official)
VEC1: Vector #1 1-second gust
RMY: R.M. Young #1 wind gust recording system (Instantaneous)
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
2/1 32/10/21/-5/0.07/0.4/000/00 35 NNW VEC1 34 NNW RMY 35
2/2 24/5/15/-11/0.10/1.0/260/43 22 SE VEC1 25 SE RMY 24
2/3 42/24/33/+7/0.05/0.5/321/53 35 SSW VEC1 35 SSW RMY 35
2/4 41/20/31/+5/0.00/0.0/542/89 51 NW VEC1 51 NW RMY 55
2/5 27/14/21/-6/0.00/0.0/562/92 32 NW VEC1 32 NW RMY 32
2/6 32/16/24/-3/0.22/1.0/000/00 26 SE VEC1 28 SE RMY 25
2/7 38/22/30/+3/0.00/0.0/542/88 48 WNW VEC1 49 WNW RMY 50
2/8 35/19/27/0/0.09/1.1/433/70 23 W VEC1 22 W RMY 23
2/9 29/23/26/-1/0.30/3.0/…/.. 24 N VEC1 24 N RMY 24
2/10 The low since midnight is 19F, the daily normal low is 19F.
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FEBRUARY DAILY RECORDS TO DATE
NONE.
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR FEBRUARY 10
HIGH 60F IN 2023
LOW -8F IN 1899
PRECIP 1.34 INS. IN 1909
SNOWFALL 12.1 INS. IN 1926
PEAK GUST 64 MPH W IN 2001
RECORDS FOR FEBRUARY 11
HIGH 60F IN 1981
LOW -10F IN 1899
PRECIP 1.07 INCHES IN 1955
SNOWFALL 9.6 INCHES IN 1933
PEAK GUST 95 MPH S IN 1981
TODAY’S REPORT PREPARED BY: Matt Douglas
