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Tuesday, February 25, 2025

February 25, 2025

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA TUESDAY, FEBRUARY 25, 2025 ALL TIMES ARE…

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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

TUESDAY, FEBRUARY 25, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0625E
SUNSET:  1730E

CLOUDS DOMINATE THE SKY TODAY, BUT ABOVE NORMAL TEMPERATURES CONTINUE
TO BE WELCOMED….

It’s been a mainly cloudy day for the most part, but with diminishing
wind, it’s still been quite pleasant outside.

Temperatures have warmed into the low to mid 50s by early this afternoon
after starting the day in the “mild” mid 30s. The dew point has been
in the 30s today as well which is great for getting the snow and ice
on the ground to melt more efficiently.

Winds started the day on the gusty side, but have been diminishing
since the mid morning hours. The average speed for the day so far is
around 14mph, but it’s been closer to 8-10mph over the past couple
of hours. The peak gust for the day so far is 31mph which occurred
at 1:44am this morning.

Visibility has been limited to around 30-40 miles all day due to
haziness.

The maximum temperature for today is 53F degrees, which is 14 degrees
above the normal high of 39F. The minimum temperature since midnight
is 35F degrees, which is 13 degrees above the normal low of 22F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Broken altocumulus, overcast cirrus, few breaks in overcast
distant SE-S
Temperature: 36F; Dew Point: 34F; Relative Humidity: 92%
Wind: SSW @ 13G20 kts
Sea-level pressure: 1011.2 mb; 29.86 in. Hg: steady, then rising
Visibility: 30 miles, hazy
6-hr Max temp: 36F
6-hr Min temp: 35F
24-hr Precip:  0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 3 inches
BHO SA 1155 E150 BKN 250 OVC 30 112/36/34/2113G20/986/ FEW BINOVC DSNT
SE-S HAZY/ 8/051 4/003 53001 10036 20035

10 A.M.
Weather: Broken altocumulus, overcast cirrostratus, few breaks in
overcast distant W-WNW
Temperature: 41F; Dew Point: 33F; Relative Humidity: 73%
Wind: SSW @ 9G15 kts
Sea-level pressure: 1011.3 mb; 29.86 in. Hg: rising, then falling
Visibility: 40 miles, hazy
3-hr Precip:  0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E130 BKN 200 OVC 40 113/41/33/2109G15/986/ FEW BINOVC DSNT
W-WNW HAZY/ 8/057 50001

1 P.M.
Weather: Broken altocumulus, broken cirrus
Temperature: 53F; Dew Point: 36F; Relative Humidity: 53%
Wind: SSW @ 7 kts
Sea-level pressure: 1008.4 mb; 29.78 in. Hg: falling, then more rapidly
Visibility: 40 miles, hazy
6-hr Max temp: 53F
6-hr Min temp: 36F
6-hr Precip:  0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 3 inches
BHO SA 1755 E120 BKN 250 BKN 40 084/53/36/2007/978/ HAZY/ 8/051
4/003 58029 10053 20036

————————————————————–

SUMMARY FOR MONDAY, FEBRUARY 24, 2025

TEMPERATURE (DEGREES F)
MAX…….45   NORMAL…..39
MIN…….25   NORMAL…..21
MEAN……35   NORMAL…..30

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+5
TOTAL DEPARTURE FOR THE MONTH…………………….-54 [-2.5 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….30  DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE MONTH……………946  DEPARTURE…….+54
TOTAL HEATING UNITS FOR THE SEASON………….4089  DEPARTURE……-206
TOTAL HEATING UNITS LAST SEASON TO DATE……..3747  DEPARTURE……+342

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)………..33 SSW  @   09:40 P.M.
VECTOR #1 (1-Sec)……….34 SSW  @   09:40 P.M.
VECTOR #2 (1-Sec)……….33 SSW  @   09:48 P.M.
DAVIS #1……………….37 S    @   08:42 P.M.
DAVIS #2 ………………41 S    @   05:59 P.M.
RMY #1 (Instantaneous)…..35 S    @   08:32 P.M.
RMY #2 (Instantaneous)…..35 SSW  @   09:48 P.M.
MERLIN…………………32 S
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………25 SSW  @   11:18 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..25      @   08:33 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..26      @   08:33 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………26 S    @   08:33 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………29 S    @   08:33 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..25 SSW  @   08:33 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 S    @   08:33 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..11.9 SSW [286 total miles] VECTOR #1………………12.1
VECTOR #2………………12.5
DAVIS #1……………….12.0 SSW
DAVIS #2……………….12.7 SSW
RMY #1…………………11.8 SW
RMY #2…………………12.5 SW
RICHARDS (C5C)…………..OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.16
TOTAL PRECIPITATION FOR THE MONTH…………..3.24 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE YEAR (2025)……..5.59 DEPARTURE…..-2.28

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH……………….13.0 DEPARTURE……-2.8
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……34.0 DEPARTURE…..-15.5

————————————————————–

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/-2/0.00/0.0/634/100       50 NW  VEC1 50 NW  RMY 54
2/15   28/15/22/-6/0.29/3.3/108/17        20 ESE VEC1 20 ESE RMY 18
2/16   35/22/29/+1/1.66/1.6/000/00        45 W   VEC1 45 W   RMY 48 TSTM
2/17   28/16/22/-7/T/T/597/93             70 WNW VEC1 68 WNW RMY 72
2/18   25/13/19/-10/0.00/0.0/645/100      51 WNW VEC1 52 WNW RMY 54
2/19   30/12/21/-8/0.00/0.0/635/98        33 WNW VEC1 33 WNW RMY 34
2/20   29/11/20/-9/T/T/…/..             26 NW  VEC1 27 NW  RMY 27
2/21   33/17/25/-4/0.00/0.0/…/..        38 NW  VEC1 39 NW  RMY 40
2/22   35/13/24/-6/0.00/0.0/…/..        30 NW  VEC1 30 NW  RMY 33
2/23   42/25/34/+4/0.00/0.0/…/..        30 WNW VEC1 31 WNW RMY 28
2/24   45/25/35/+5/0.00/0.0/…/..        33 SSW VEC1 34 SSW RMY 35

2/25 The low since midnight is 35F, the daily normal low is 22F.

————————————————————–

FEBRUARY DAILY RECORDS TO DATE

NONE.

————————————————————–

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)

RECORDS FOR FEBRUARY 25
HIGH 68F IN 2017
LOW -10F IN 1894
PRECIP 2.40 INCHES IN 1981
SNOWFALL 13.6 INCHES IN 1966
PEAK GUST 76 MPH S IN 2016

RECORDS FOR FEBRUARY 26
HIGH 67F IN 1957
LOW -7F IN 1928
PRECIP 2.24 INCHES IN 1979
SNOWFALL 11.1 INCHES IN 1933
PEAK GUST 66 MPH W IN 1961

TODAY’S REPORT PREPARED BY: Matt Douglas

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