Sunday, February 9, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, FEBRUARY 9, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0648E
SUNSET: 1709E
SNOW AND FREEZING RAIN REACHES BLUE HILL TODAY ….
The snow started late last night and for the most part has
finished, with some few stray snow showers in the area. The total
snow we have received from this event so far is 4.1 inches. This
puts us slightly up for the month but we are still -12.1 inches
for the season. The majority of the precipitation received was snow
with a period of freezing drizzle occurring during the early morning
hours. We had a brief dry period following more light snow.
Temperatures have stayed below normal values and with very little
variation, thanks to overcast conditions and the passing storm.
The winds shifted from an easterly flow to a more northerly flow
during the early morning. Winds have been holding steady with an
average around 10mph with some gusts reported during the mid
morning. The peak gust occurred just before 9:00am, with a speed
of about 24mph.
Visibility was impacted by the passing snow this morning, with only
2-3 miles visible in the morning. By the afternoon, we improved to
about 40 miles, with some sector visibility from virga in the area.
The maximum temperature for today is 27F degrees, which is 9 degrees
below the normal high of 36F. The minimum temperature since midnight
is 23F degrees, which is 5 degrees above the normal low of 18F.
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Today’s Observations:
7 A.M.
Weather: Sky obscured, vertical visibility 200 ft, light freezing
drizzle, light snow
Temperature: 25F; Dew Point: 25F; Relative Humidity: 100%
Wind: N @ 8 kts
Sea-level pressure: 1009.9 mb; 29.82 in. Hg: falling, then
rising
Visibility: 2 miles, 3 miles ESE-S, fog
6-hr Max temp: 25F
6-hr Min temp: 23F
24-hr Precip: 0.34 inches
24-hr Snowfall: 3.2 inches
Snow Depth: 3 inches
BHO SA 1155 X W2 2ZL-S-F 099/25/25/3608/982/ VSBY 3 ESE-S
TOTAL NEW SNW PST 24 HRS 3.2 INS/ 8//// 4/003 50003 6020/ 70034
10025 20023
10 A.M.
Weather: Broken stratocumulus, overcast nimbostratus, light snow
Temperature: 24F; Dew Point: 22F; Relative Humidity: 90%
Wind: N @ 10G17 kts
Sea-level pressure: 1012.6 mb; 29.90 in. Hg: rising, then more slowly
Visibility: 9 miles
3-hr Precip: 0.05 inches
3-hr Snowfall: 0.9 inches
BHO SA 1455 E10 BKN 40 OVC 9S- 126/24/22/3610G17/990/ SUN DMLY VSBL
TOTAL NEW SNW PST 3 HRS 0.9 INS/ 8/52/ 51027 6005/
1 P.M.
Weather: Overcast stratocumulus, virga distant W-NW and distant NE-E
and distant SE
Temperature: 27F; Dew Point: 24F; Relative Humidity: 88%
Wind: N @ 8 kts
Sea-level pressure: 1014.9 mb; 29.97 in. Hg: rising, then more slowly
Visibility: 40 miles, 30 miles W-NW
6-hr Max temp: 27F
6-hr Min temp: 23F
6-hr Precip: 0.05 inches
6-hr Snowfall: 0.9 inches
Snow Depth: 4 inches
BHO SA 1755 E14 OVC 40 149/27/24/3508/997/ VIRGA DSNT W-NW AND DSNT NE-E
AND DSNT SE SUN DMLY VSBL VSBY 30 W-NW TOTAL NEW SNW PST 6 HRS TRACE/
8/5// 4/004 51023 6005/ 10027 20023
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SUMMARY FOR SATURDAY, FEBRUARY 8, 2025
TEMPERATURE (DEGREES F)
MAX…….35 NORMAL…..36
MIN…….19 NORMAL…..18
MEAN……27 NORMAL…..27
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………0
TOTAL DEPARTURE FOR THE MONTH…………………….-10 [-1.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………38 DEPARTURE……..0
TOTAL HEATING UNITS FOR THE MONTH…………..318 DEPARTURE…….+10
TOTAL HEATING UNITS FOR THE SEASON…………3461 DEPARTURE……-250
TOTAL HEATING UNITS LAST SEASON TO DATE…….3223 DEPARTURE……+238
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)………..23 W @ 02:16 A.M.
VECTOR #1 (1-Sec)……….22 W @ 02:22 A.M.
VECTOR #2 (1-Sec)……….24 W @ 02:12 A.M.
DAVIS #1……………….26 W @ 02:16 A.M.
DAVIS #2 ………………24 WNW @ 02:12 A.M.
RMY #1 (Instantaneous)…..23 W @ 02:16 A.M.
RMY #2 (Instantaneous)…..24 W @ 02:12 A.M.
MERLIN…………………17 W
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………18 W @ 02:21 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..16 @ 02:17 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18 @ 02:13 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 W @ 02:17 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………18 W @ 02:13 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 W @ 02:17 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..18 W @ 02:13 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………8.1 W [195 total miles]
VECTOR #1……………….8.6
VECTOR #2……………….8.8
DAVIS #1………………..8.6 W
DAVIS #2………………..8.6 W
RMY #1………………….8.1 W
RMY #2………………….8.7 WSW
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.34 DEPARTURE…..+0.22
TOTAL PRECIPITATION FOR THE MONTH…………..0.78 DEPARTURE…..-0.30
TOTAL PRECIPITATION FOR THE YEAR (2025)……..3.13 DEPARTURE…..-2.45
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..3.2 DEPARTURE……+2.5
TOTAL SNOWFALL FOR THE MONTH………………..6.1 DEPARTURE……+0.6
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……27.1 DEPARTURE…..-12.1
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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 The low since midnight is 23F, 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 9
HIGH 58F IN 1990
LOW -21F IN 1934 [LOWEST TEMPERATURE ON RECORD]
PRECIP 2.12 INS. IN 1969
SNOWFALL 16.9 INS. IN 2017
PEAK GUST 89 MPH NE IN 1969
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
TODAY’S REPORT PREPARED BY: Amanda Joly/Matt Douglas
