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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, FEBRUARY 16, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0639E
SUNSET: 1718E
ANOTHER WEEKEND WINTER STORM BRINGS A WINTRY MIX OF SNOW AND ICE….
As mentioned yesterday, our active stretch of weather continues with
yet another messy wintry mixed event occurring overnight through today.
Snow began between 4-5pm yesterday evening and continued until around
2:30am this morning before beginning to mix with sleet. By 7am this
morning 4.9″ of snow and sleet had accumulated here on the summit. The
sleet began mixing with freezing rain around 4am. This icy mix continued
for a few hours before changing to all freezing rain by 8:30am. Ice
accumulated to 1/8th of an inch (0.13″) diameter through the 10am
observation on all non-treated surfaces. The temperature finally got
above the freezing mark after 10am, mercifully changing everything over
to plain rain.
So far the total liqiud for the event is 1.32″ through the 1pm
observation. This is the biggest event (in terms of amount of
precipitation) of the month so far.
As mentioned above, temperatures have finally made it above freezing
with readings barely reaching the mid 30s by early this afternoon.
Winds have been gusty through the morning into early this afternoon
out of mainly an easterly direction. The average speed for the day so
far is around 16mph. Gusts haven’t been all that strong as of yet,
with the peak gust so far of 33mph which occurred just after 12:20pm.
Visibility has of course been limited by precipitation and fog. The
view has been generally around 2-3 miles, however it has at times
dropped as low as 1/4 of a mile.
The maximum temperature for today is 34F degrees, which is 3 degrees
below the normal high of 37F. The minimum temperature since midnight
is 22F degrees, which is 2 degrees above the normal low of 20F.
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Today’s Observations:
7 A.M.
Weather: Sky obscured, vertical visibility 200ft, light freezing rain
Temperature: 31F; Dew Point: 31F; Relative Humidity: 100%
Wind: E @ 16G24 kts
Sea-level pressure: 1010.6 mb; 29.84 in. Hg: falling rapidly
Visibility: 3 miles, fog
6-hr Max temp: 31F
6-hr Min temp: 23F
24-hr Precip: 0.91 inches
24-hr Snowfall: 4.9 inches
Snow Depth: 5 inches
BHO SA 1155 X W2 3ZR-F 106/31/31/0916G24/984/ IP-E27 PRESFR ICE ACCRETION
0.06 IN TOTAL NEW SNW PST 24 HRS 4.9 INS/ 8//// 4/005 58048 70091 10031
20023
10 A.M.
Weather: Sky obscured, vertical visibility 200ft, light freezing rain
Temperature: 32F; Dew Point: 32F; Relative Humidity: 100%
Wind: E @ 14G21 kts
Sea-level pressure: 1004.9 mb; 29.67 in. Hg: falling rapidly
Visibility: 3 miles, fog
3-hr Precip: 0.20 inches
3-hr Snowfall: Trace (sleet)
BHO SA 1455 X W2 3ZR-F 049/32/32/0814G21/967/ PRESFR ICE ACCRETION 0.13 IN
TOTAL NEW SNW PST 3 HRS TRACE/ 8//// 58057 6020/
1 P.M.
Weather: Sky obscured, vertical visibility 200ft, light rain
Temperature: 34F; Dew Point: 34F; Relative Humidity: 100%
Wind: E @ 17G27 kts, peak wind E 33mph at 12:20 P.M.
Sea-level pressure: 996.4 mb; 29.42 in. Hg: falling rapidly
Visibility: 2.5 miles, fog
6-hr Max temp: 34F
6-hr Min temp: 31F
6-hr Precip: 0.41 inches
6-hr Snowfall: Trace (sleet)
Snow Depth: 5 inches
BHO SA 1755 X W2 21/2R-F 964/34/34/0817G27/942/ PRESFR PK WND 0829/20/
TOTAL NEW SNW PST 6 HRS TRACE/ 8//// 4/005 58085 6041/ 10034 20031
————————————————————–
SUMMARY FOR SATURDAY, FEBRUARY 15, 2025
TEMPERATURE (DEGREES F)
MAX…….28 NORMAL…..37
MIN…….15 NORMAL…..19
MEAN……22 NORMAL…..28
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..-6
TOTAL DEPARTURE FOR THE MONTH…………………….-20 [-1.5 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………43 DEPARTURE……..+6
TOTAL HEATING UNITS FOR THE MONTH…………..590 DEPARTURE…….+20
TOTAL HEATING UNITS FOR THE SEASON…………3733 DEPARTURE……-240
TOTAL HEATING UNITS LAST SEASON TO DATE…….3431 DEPARTURE……+302
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)………..20 ESE @ 11:37 P.M.
VECTOR #1 (1-Sec)……….20 ESE @ 11:27 P.M.
VECTOR #2 (1-Sec)……….19 WNW @ 01:57 A.M.
DAVIS #1……………….20 S @ 05:24 P.M.
DAVIS #2 ………………22 S @ 05:24 P.M.
RMY #1 (Instantaneous)…..18 ESE @ 11:27 P.M.
RMY #2 (Instantaneous)…..19 WNW @ 01:52 A.M.
MERLIN………………….M
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 ESE @ 11:31 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..15 @ 11:29 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..14 @ 01:55 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………14 ESE @ 11:29 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………15 S @ 05:26 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..14 ESE @ 11:29 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 WNW @ 01:55 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………6.7 NW [161 total miles]
VECTOR #1……………….7.2
VECTOR #2……………….7.6
DAVIS #1………………..7.0 WSW
DAVIS #2………………..7.2 W
RMY #1………………….7.0 WSW
RMY #2………………….7.5 WSW
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.91 DEPARTURE…..+0.77
TOTAL PRECIPITATION FOR THE MONTH…………..2.20 DEPARTURE…..+0.18
TOTAL PRECIPITATION FOR THE YEAR (2025)……..4.55 DEPARTURE…..-2.97
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..4.9 DEPARTURE……+4.3
TOTAL SNOWFALL FOR THE MONTH……………….13.0 DEPARTURE……+3.1
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……34.0 DEPARTURE……-9.6
————————————————————–
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/-1/0.30/3.0/006/01 24 N VEC1 24 N RMY 24
2/10 33/19/26/-1/0.00/0.0/343/55 26 WNW VEC1 27 NW RMY 28
2/11 30/14/22/-5/0.00/0.0/232/37 23 WSW VEC1 22 WSW RMY 23
2/12 32/24/28/0/0.04/0.4/006/01 29 ENE VEC1 29 ENE RMY 28
2/13 38/28/33/+5/0.42/0.7/000/00 52 WNW VEC1 52 WNW RMY 55
2/14 32/20/26/-2/0.00/0.0/…/.. 50 NW VEC1 50 NW RMY 54
2/15 28/15/22/-6/0.29/3.3/…/.. 20 ESE VEC1 20 ESE RMY 18
2/16 The low since midnight is 22F, the daily normal low is 20F.
————————————————————–
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 16
HIGH 62F IN 1954
LOW -16F IN 1943
PRECIP 1.91 INCHES IN 1958
SNOWFALL 18.6 INCHES IN 1958
PEAK GUST 78 MPH W IN 1967
RECORDS FOR FEBRUARY 17
HIGH 61F IN 1981
LOW -16F IN 1896
PRECIP 1.86 INCHES IN 2003
SNOWFALL 20.0 INCHES IN 2003
PEAK GUST 72 MPH NW IN 1968
TODAY’S REPORT PREPARED BY: Matt Douglas
