Thursday, February 6, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
THURSDAY, FEBRUARY 6, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0652E
SUNSET: 1705E
MESSY CONDITIONS TODAY WITH A WINTRY MIX OF SNOW, SLEET, AND FREEZING
RAIN….
Snow started just before 8am this morning and continued for a couple
of hours before mixing with sleet and freezing rain. 0.6″ of snow was
measured through 10am, with an additional 0.4″ of snow and sleet
falling between 10am and 1pm giving a total of 1.0″ to this point. As
of 1pm, a light (and nasty) mix of sleet, freezing rain, and snow was
falling.
Temperatures have been slowly rising through the 20s after bottoming
out in the mid teens in the wee hours of the morning. By the 1pm
observation, we’ve reached 29F degrees.
Winds were a bit gusty for a time early this morning out of the south-
southeast and southeast. Speeds have decreased however as we pushed
toward noon. The average speed for the day so far is around 11mph.
The peak gust for the day so far is 26mph which occurred just after
9am.
Visibility started the day around 50 miles, but was of course quickly
reduced with the onset of the precipitation, getting down as low as
3/4 of a mile at times.
The maximum temperature for today is 29F degrees, which is 6 degrees
below the normal high of 35F. The minimum temperature since midnight
is 16F degrees, which is 2 degrees below the normal low of 18F.
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Today’s Observations:
7 A.M.
Weather: Broken altostratus, overcast cirrostratus, few breaks in overcast
distant N-ESE, few stratocumulus distant NE-SE
Temperature: 22F; Dew Point: 12F; Relative Humidity: 65%
Wind: SE @ 13G19 kts
Sea-level pressure: 1025.4 mb; 30.28 in. Hg: falling, then more slowly
Visibility: 50 miles
6-hr Max temp: 22F
6-hr Min temp: 16F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: Trace
BHO SA 1155 E100 BKN 180 OVC 50 254/22/12/1413G19/028/ FEW BINOVC DSNT
N-ESE FEW SC DSNT NE-SE/ 8/527 4/000 56029 10022 20016
10 A.M.
Weather: Overcast stratus, light snow
Temperature: 25F; Dew Point: 25F; Relative Humidity: 100%
Wind: SE @ 12G20 kts
Sea-level pressure: 1021.0 mb; 30.15 in. Hg: falling, then more slowly
Visibility: 3 miles, fog
3-hr Precip: 0.05 inches
3-hr Snowfall: 0.6 inches
BHO SA 1455 E12 OVC 3S-F 210/25/25/1412G20/015/ TOTAL NEW SNW PST
3 HRS 0.6 INS/ 8/6// 56044 6005/
1 P.M.
Weather: Sky obscured, vertical visibility 200ft, light sleet,
freezing rain, and snow
Temperature: 29F; Dew Point: 29F; Relative Humidity: 100%
Wind: ESE @ 6 kts, wind light.
Sea-level pressure: 1014.4 mb; 29.96 in. Hg: falling rapidly
Visibility: 3/4 mile, fog
6-hr Max temp: 29F
6-hr Min temp: 22F
6-hr Precip: 0.16 inches
6-hr Snowfall: 1.0 inches
Snow Depth: 1 inch
BHO SA 1755 X W2 3/4IP-ZR-S-F 144/29/29/1206/996/ S-E35B48 ZL-B20E48
ZR-B48 IP-B48 WND LGT PRESFR TOTAL NEW SNW PST 6 HRS 1.0 INS/ 8////
4/001 58066 6016/ 10028 20022
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SUMMARY FOR WEDNESDAY, FEBRUARY 5, 2025
TEMPERATURE (DEGREES F)
MAX…….27 NORMAL…..35
MIN…….14 NORMAL…..18
MEAN……21 NORMAL…..27
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..-6
TOTAL DEPARTURE FOR THE MONTH…………………….-10 [-2.2 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………44 DEPARTURE……..+5
TOTAL HEATING UNITS FOR THE MONTH…………..204 DEPARTURE…….+11
TOTAL HEATING UNITS FOR THE SEASON…………3347 DEPARTURE……-250
TOTAL HEATING UNITS LAST SEASON TO DATE…….3129 DEPARTURE……+218
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)………..32 NW @ 12:37 P.M.
VECTOR #1 (1-Sec)……….32 NW @ 12:37 P.M.
VECTOR #2 (1-Sec)……….32 NW @ 12:37 P.M.
DAVIS #1……………….30 NNW @ 12:37 P.M.
DAVIS #2 ………………29 WNW @ 08:50 A.M.
RMY #1 (Instantaneous)…..32 NW @ 12:37 P.M.
RMY #2 (Instantaneous)…..31 NW @ 12:37 P.M.
MERLIN…………………28 NW
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………23 NW @ 12:44 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..22 @ 12:38 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22 @ 12:58 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………23 NW @ 12:38 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 NNW @ 12:39 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..22 NW @ 12:38 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 NW @ 12:38 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………9.8 NW [236 total miles]
VECTOR #1………………10.1
VECTOR #2………………10.7
DAVIS #1……………….10.2 NW
DAVIS #2……………….10.3 NW
RMY #1………………….9.8 NW
RMY #2…………………10.4 NW
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..0.22 DEPARTURE…..-0.46
TOTAL PRECIPITATION FOR THE YEAR (2025)……..2.57 DEPARTURE…..-2.61
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.8
TOTAL SNOWFALL FOR THE MONTH………………..1.9 DEPARTURE……-1.6
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……22.9 DEPARTURE…..-14.3
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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 The low since midnight is 16F, the daily normal low is 18F.
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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 6
HIGH 54F IN 1909
LOW -10F IN 1895
PRECIP 1.88 INS. IN 1896
SNOWFALL 13.0 INS. IN 1978 [BLIZZARD OF 1978]
PEAK GUST 84e MPH NE IN 1978
RECORDS FOR FEBRUARY 7
HIGH 53F IN 2020
LOW -8F IN 1910
PRECIP 2.12 INS. IN 1983
SNOWFALL 17.1 INS. IN 1978 [BLIZZARD OF 1978]
PEAK GUST 87e MPH SSE IN 1951
TODAY’S REPORT PREPARED BY: Matt Douglas
