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Wednesday, February 19, 2025

February 19, 2025

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA WEDNESDAY, FEBRUARY 19, 2025 ALL TIMES ARE…

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

WEDNESDAY, FEBRUARY 19, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0634E
SUNSET:  1722E

BLUSTERY ONCE AGAIN AS THE ARCTIC AIR MASS HANGS ON ANOTHER DAY WITH
CONTINUED BELOW NORMAL TEMPERATURES….

The arctic blast continues with well below normal temperatures and
blustery winds continuing today. Skies are at least mainly on the
clear side, as such we are receiving plenty of bright sunshine.
However, temperatures remain well below seasonal levels making the
sun rather ineffective in terms of how it feels out there.

Much like yesterday, readings have only recovered to the mid-upper
20s by early this afternoon after bottoming out in the low teens
early this morning. The dew point remains down in the single digits.

Winds continue to be on the blustery side, but thankfully not as
strong as the past couple of days. Gusts were frequently reaching
around 30mph during the morning, but the trend since noontime has
been for decreasing wind overall. The average speed for the day so
far is around 15mph, mainly out of the west-northwest and northwest.
The peak gust so far is 33mph, which occurred at 9:09am.

Visibility has been quite decent today, holding at around 70 miles
all day.

The maximum temperature for today is 27F degrees, which is 11 degrees
below the normal high of 38F. The minimum temperature since midnight
is 12F degrees, which is 8 degrees below the normal low of 20F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few stratocumulus offshore distant NE-SE-SW, few cirrus
distant SE-WSW
Temperature: 13F; Dew Point: 2F; Relative Humidity: 60%
Wind: NW @ 13G22 kts, peak wind NW 31mph at 6:21 A.M.
Sea-level pressure: 1020.5 mb; 30.14 in. Hg: rising, then more rapidly
Visibility: 70 miles
6-hr Max temp: 17F
6-hr Min temp: 13F
24-hr Precip:  0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 5 inches
BHO SA 1155 CLR 70 205/13/2/3113G22/014/ FEW SC OFFSHR DSNT NE-SE-SW
FEW CI DSNT SE-WSW PK WND 3127/21/ 8/501 4/005 53012 10017 20013

10 A.M.
Weather: Clear, few stratocumulus distant NE-E, few cirrus distant
ESE-S-WSW
Temperature: 18F; Dew Point: 1F; Relative Humidity: 46%
Wind: WNW @ 13G24 kts, peak wind WNW 33mph at 9:09 A.M.
Sea-level pressure: 1021.6 mb; 30.17 in. Hg: rising, then more slowly
Visibility: 70 miles
3-hr Precip:  0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 70 216/18/1/2913G24/017/ FEW SC DSNT NE-E FEW CI DSNT
ESE-S-WSW PK WND 2929/09/ 8/501 51011

1 P.M.
Weather: Clear, few stratocumulus distant ENE-E, few cirrus ESE-S-W-OVHD
Temperature: 26F; Dew Point: 9F; Relative Humidity: 48%
Wind: WNW @ 12G20 kts
Sea-level pressure: 1020.2 mb; 30.13 in. Hg: falling, then more rapidly
Visibility: 70 miles
6-hr Max temp: 27F
6-hr Min temp: 13F
6-hr Precip:  0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 5 inches
BHO SA 1755 CLR 70 202/26/9/2912G20/013/ FEW SC DSNT ENE-E
FEW CI ESE-S-W-OVHD/ 8/501 4/005 58014 10027 20013

————————————————————–

SUMMARY FOR TUESDAY, FEBRUARY 18, 2025

TEMPERATURE (DEGREES F)
MAX…….25   NORMAL…..38
MIN…….13   NORMAL…..20
MEAN……19   NORMAL…..29

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………….-10
TOTAL DEPARTURE FOR THE MONTH…………………….-36 [-2.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………46  DEPARTURE…….+10
TOTAL HEATING UNITS FOR THE MONTH…………..715  DEPARTURE…….+36
TOTAL HEATING UNITS FOR THE SEASON…………3858  DEPARTURE……-224
TOTAL HEATING UNITS LAST SEASON TO DATE…….3541  DEPARTURE……+317

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)………..51 WNW  @   10:01 A.M.
VECTOR #1 (1-Sec)……….52 WNW  @   10:01 A.M.
VECTOR #2 (1-Sec)……….51 WSW  @   03:48 P.M.
DAVIS #1……………….51 W    @   09:42 A.M.
DAVIS #2 ………………50 WNW  @   03:48 P.M.
RMY #1 (Instantaneous)…..54 WNW  @   10:01 A.M.
RMY #2 (Instantaneous)…..53 WSW  @   03:48 P.M.
MERLIN…………………47 NW
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………38 WNW  @   09:42 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..34      @   09:32 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..36      @   01:38 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………38 W    @   09:32 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………36 WNW  @   01:38 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..33 WNW  @   10:03 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..35 WSW  @   01:38 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..22.8 WNW [546 total miles] VECTOR #1………………21.4
VECTOR #2………………22.7
DAVIS #1……………….23.0 W
DAVIS #2……………….22.9 WNW
RMY #1…………………20.2 WNW
RMY #2…………………22.1 WSW
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…..+0.78
TOTAL PRECIPITATION FOR THE YEAR (2025)……..5.59 DEPARTURE…..-1.37

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……+1.1
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……34.0 DEPARTURE…..-11.6

————————————————————–

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   35/22/29/+1/1.66/1.6/…/..        45 W   VEC1 45 W   RMY 48
2/17   28/16/22/-7/T/T/…/..             70 WNW VEC1 68 WNW RMY 72
2/18   25/13/19/-10/0.00/0.0/…/..       51 WNW VEC1 52 WNW RMY 54

2/19 The low since midnight is 12F, the daily normal low is 20F.

————————————————————–

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 19
HIGH 66F IN 1981
LOW -5F IN 1923
PRECIP 2.73 INCHES IN 1972
SNOWFALL 8.9 INCHES IN 1964
PEAK GUST 76 MPH ENE IN 1972

RECORDS FOR FEBRUARY 20
HIGH 68F IN 2018
LOW -4F IN 1966
PRECIP 1.90 INCHES IN 1934
SNOWFALL 15.0 INCHES IN 1921,1934
PEAK GUST 78 MPH NW IN 1972

TODAY’S REPORT PREPARED BY: Matt Douglas

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Blue Hill Observatory & Science Center · Legal

Data Use & Privacy Policy

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

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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