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Monday, February 24, 2025

February 24, 2025

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA MONDAY, FEBRUARY 24, 2025 ALL TIMES ARE…

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

MONDAY, FEBRUARY 24, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0627E
SUNSET:  1728E

PERIODS OF CLOUDS AND SUN, EVEN MILDER WITH INCREASING WIND….

The day has had varying amounts of clouds and sunshine. We started the
day with a cloudy period, then had clear skies for a few hours during
the mid to late morning period, but clouds are moving back in again
early this afternoon. Nonetheless, it’s been a rather pleasant day
with milder temperatures and the higher sun angle.

Temperatures have warmed into the mid 40s by early this afternoon
after starting the day in the mid to upper 20s. Today will once again
go in the book with above normal temperatures, something that hasn’t
happened a lot this winter. It’s definitely nice to be able to get
some decent melting this week.

Winds started the day on the light side, with values generally under
5mph for a while during the morning hours. However the wind has finally
settled out of a southerly direction with increasing speeds as we push
into and through the early afternoon hours. The average speed for the
day so far is around 7mph. The peak gust for the day so far is 21mph
which occurred at 12:37pm.

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

The maximum temperature for today is 45F degrees, which is 6 degrees
above the normal high of 39F. The minimum temperature since midnight
is 25F degrees, which is 4 degrees above the normal low of 21F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Broken stratocumulus, broken altocumulus/castellanus,
broken cirrus
Temperature: 29F; Dew Point: 21F; Relative Humidity: 71%
Wind: WNW @ 5 kts, wind light
Sea-level pressure: 1021.1 mb; 30.15 in. Hg: rising, then more rapidly
Visibility: 40 miles, hazy
6-hr Max temp: 28F
6-hr Min temp: 25F
24-hr Precip:  0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 4 inches
BHO SA 1155 E50 BKN 100 BKN 250 BKN 40 211/29/21/3005/015/ HAZY
WND LGT/ 8/581 4/004 53011 10028 20025

10 A.M.
Weather: Clear, few stratocumulus distant NNE-E, few altocumulus distant
WNW-N-ENE, few cirrus distant ESE-SSW
Temperature: 38F; Dew Point: 25F; Relative Humidity: 59%
Wind: SSW @ 3 kts, wind light and variable
Sea-level pressure: 1020.9 mb; 30.15 in. Hg: rising, then falling
Visibility: 40 miles, hazy
3-hr Precip:  0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 40 209/38/25/2103/015/ FEW SC DSNT NNE-E FEW AC DSNT
WNW-N-ENE FEW CI DSNT ESE-SSW HAZY WND L/V/ 8/551 58002

1 P.M.
Weather: Scattered altocumulus, thin broken cirrus, few stratocumulus
distant NNE
Temperature: 44F; Dew Point: 27F; Relative Humidity: 51%
Wind: SW @ 9G15 kts
Sea-level pressure: 1018.7 mb; 30.08 in. Hg: falling, then more rapidly
Visibility: 40 miles, hazy
6-hr Max temp: 45F
6-hr Min temp: 29F
6-hr Precip:  0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 4 inches
BHO SA 1755 150 SCT 250 -BKN 40 187/44/27/2309G15/008/ FEW SC DSNT NNE
HAZY/ 8/551 4/004 58022 10045 20029

————————————————————–

SUMMARY FOR SUNDAY, FEBRUARY 23, 2025

TEMPERATURE (DEGREES F)
MAX…….42   NORMAL…..39
MIN…….25   NORMAL…..21
MEAN……34   NORMAL…..30

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+4
TOTAL DEPARTURE FOR THE MONTH…………………….-59 [-2.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….31  DEPARTURE……..-4
TOTAL HEATING UNITS FOR THE MONTH……………916  DEPARTURE…….+59
TOTAL HEATING UNITS FOR THE SEASON………….4059  DEPARTURE……-201
TOTAL HEATING UNITS LAST SEASON TO DATE……..3709  DEPARTURE……+350

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)………..30 WNW  @   11:43 A.M.
VECTOR #1 (1-Sec)……….31 WNW  @   11:43 A.M.
VECTOR #2 (1-Sec)……….29 W    @   11:28 A.M.
DAVIS #1……………….29 W    @   11:43 A.M.
DAVIS #2 ………………28 W    @   11:28 A.M.
RMY #1 (Instantaneous)…..28 WNW  @   12:30 P.M.
RMY #2 (Instantaneous)…..29 W    @   11:28 A.M.
MERLIN…………………26 W
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………21 WNW  @   01:43 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..20      @   11:43 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..20      @   11:48 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………21 W    @   11:43 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………20 W    @   11:48 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..19 WNW  @   11:43 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..19 W    @   11:48 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..11.4 WNW [274 total miles] VECTOR #1………………11.5
VECTOR #2………………12.0
DAVIS #1……………….11.8 W
DAVIS #2……………….11.9 WNW
RMY #1…………………11.1 W
RMY #2…………………11.8 W
RICHARDS (C5C)…………..OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH…………..3.24 DEPARTURE…..+0.03
TOTAL PRECIPITATION FOR THE YEAR (2025)……..5.59 DEPARTURE…..-2.12

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE MONTH……………….13.0 DEPARTURE……-2.2
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……34.0 DEPARTURE…..-14.9

————————————————————–

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 The low since midnight is 25F, the daily normal low is 21F.

————————————————————–

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 24
HIGH 71F IN 2017 [RECORD HIGH FOR MONTH] LOW -11F IN 1894
PRECIP 3.10 INCHES IN 1969
SNOWFALL 27.4 INCHES IN 1969 [HIGHEST CALENDAR DAY AMOUNT ON RECORD] PEAK GUST 63 MPH NE IN 1998

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

TODAY’S REPORT PREPARED BY: Matt Douglas

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Please read the full Policy before accessing Observatory data · Effective January 1, 2025

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Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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