Monday, March 2, 2026

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

MONDAY, MARCH 2, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0618E
SUNSET: 1735E

ARCTIC AIR MASS IN PLACE TODAY WITH ABUNDANCE SUNSHINE….

Despite plenty of bright early March sunshine today, the arctic
air mass in place means business. Temperatures are well below
normal as they are struggling to reach the mid 20s after starting
the day in the single digits. This is close to 15F degrees below
the expected readings for today! This is thanks to a very strong
high pressure area that is cresting over the region. The pressure
peaked near 1040mb (~30.70 in/hg) this morning locally, which
is the highest pressure readings we’ve seen so far this winter.
As a matter of fact, this is the highest pressure we’ve seen since
February 2nd of last year (2025), when it reached 30.65″!

Dew point values, which are very indicative of an arctic air mass,
have remained below zero all day. The air is very dry with relative
humidity levels dropping below 30 percent by early this afternoon.

Thankfully, the wind has been on the light side today. A northerly
flow has been very gradually backing around to more of a
northwesterly flow, eventually destined to go into the south as
the big high pressure axis passes east of our longitude this
evening. The average speed for the day so far is only around 8mph.
The peak gust for the day so far is 25mph, which occurred just
after 2:30am this morning.

Visibility has been excellent today, with a view of around 70 miles
all day.

The maximum temperature so far today is 27F degrees at midnight,
which is 13 degrees below the normal high of 40F. The minimum
temperature since midnight is 8F degrees, which is 15 degrees
below the normal low of 23F.

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PRELIMINARY STATS FOR FEBRUARY 2026

TEMPERATURE, Deg. F
Avg. Max. 34.7 [-2.3] Avg. Min. 18.3 [-1.2] Mean 26.5 [-1.7] 24-hour corrected mean: 26.1
Max. for month: 51F on the 28th
Min. for month: -2F on the 8th

HEATING DEGREE DAYS
Total heating units: 1069 [+040] Total for the season: 4542 [+110] Total for last season: 4181

COOLING DEGREE DAYS
Total cooling units: 0 [ 000] Total for the season: 0 [ 000] Total for last season: 0

PRECIPITATION, Inches
Total: 2.97 [-1.03] Greatest in 24 hrs: 1.99 on the 22nd-23rd

SNOWFALL, Inches
Total: 35.9 [+17.7] Greatest in 24 hrs: 24.8 on the 22nd-23rd

WIND, mph
Avg. uncorrected wind speed: 11.3 mph
Avg. corrected wind speed: 11.8 mph
Prevailing wind direction: Northwest [23%] Peak gust and direction: 68 NE on the 23rd

SUNSHINE:
Campbell-Stokes card minutes: 8808 of a possible 17148, or 51%
Astronomical total minutes: 9151 of a possible 17808 or 51%

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Today’s Observations:

7 A.M.
Weather: Clear, few stratocumulus offshore distant NE-ESE,
few cirrus distant SE-SW-W
Temperature: 9F; Dew Point: -6F; Relative Humidity: 49%
Wind: N @ 7 kts
Sea-level pressure: 1037.9 mb; 30.65 in. Hg: rising, then more rapidly
Visibility: 70 miles
6-hr Max temp: 17F
6-hr Min temp: 8F
24-hr Precip: 0.10 inches
24-hr Snowfall: 1.9 inches
Snow Depth: 23 inches
BHO SA 1155 CLR 70 379/9/-6/3607/065/ FEW SC OFFSHR DSNT NE-ESE
FEW CI DSNT SE-SW-W TOTAL NEW SNW PST 24 HRS 1.9 INS/ 8/501 4/023
53025 70010 10017 20008

10 A.M.
Weather: Thin broken cirrus, few stratocumulus offshore distant NE-ESE
Temperature: 19F; Dew Point: -3F; Relative Humidity: 37%
Wind: NNW @ 6 kts, wind light
Sea-level pressure: 1039.1 mb; 30.69 in. Hg: rising, then steady
Visibility: 70 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E250 -BKN 70 391/19/-3/3306/069/ FEW SC OFFSHR
DSNT NE-ESE WND LGT/ 8/501 51012

1 P.M.
Weather: Thin broken cirrus, few stratocumulus offshore distant NE-SE
Temperature: 27F; Dew Point: -6F; Relative Humidity: 23%
Wind: NW @ 5 kts, wind light
Sea-level pressure: 1038.0mb; 30.65 in. Hg: rising, then falling
Visibility: 70 miles
6-hr Max temp: 27F
6-hr Min temp: 9F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 23 inches
BHO SA 1755 E250 -BKN 70 380/27/-6/3205/065/ FEW SC OFFSHR
DSNT NE-SE WND LGT/ 8/501 4/023 58011 10027 20009

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SUMMARY FOR SUNDAY, MARCH 1, 2026

TEMPERATURE (DEGREES F)
MAX…….37 NORMAL…..40
MIN…….19 NORMAL…..23
MEAN……28 NORMAL…..31

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-3
TOTAL DEPARTURE FOR THE MONTH……………………….-3 [-3.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….37 DEPARTURE……..+3
TOTAL HEATING UNITS FOR THE MONTH (FEB)……….37 DEPARTURE……..+3
TOTAL HEATING UNITS FOR THE SEASON………….4579 DEPARTURE……+113
TOTAL HEATING UNITS LAST SEASON TO DATE……..4210 DEPARTURE……+369

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 *=Last of multiple occurrences

F420C (Official)………..30 NNW @ 09:56 A.M.
VECTOR #1 (1-Sec)……….31 NNW @ 09:59 A.M.
VECTOR #2 (1-Sec)……….31 NNW @ 09:59 A.M
DAVIS #1……………….28 NW @ 09:57 A.M.
DAVIS #2 ………………26 NW @ 09:56 A.M.
RMY #1 (Instantaneous)…..31 NNW @ 09:56 A.M.
RMY #2 (Instantaneous)…..31 NNW @ 09:59 A.M.
MERLIN…………………26 NW
RICHARDS (C5C) (Inst)……29 NNW @ 09:56 A.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………19 NNW @ 10:00 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..19 NNW @ 10:00 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..19 NNW @ 10:01 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………19 NNW @ 10:00 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………18 N @ 10:01 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..18 NNW @ 10:02 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..18 NNW @ 10:01 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………19 NNW @ 10:02 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..10.4 NNW [249 total miles] VECTOR #1………………10.6
VECTOR #2………………11.0
DAVIS #1……………….10.6 NNW
DAVIS #2……………….10.6 N
RMY #1…………………10.6 NNW
RMY #2…………………10.8 NNW
RICHARDS (C5C)………….10.8

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.10 DEPARTURE…..-0.07
TOTAL PRECIPITATION FOR THE MONTH (MAR)……..0.10 DEPARTURE…..-0.07
TOTAL PRECIPITATION FOR THE YEAR (2026)……..6.69 DEPARTURE…..-1.98

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..1.9 DEPARTURE…..+1.2
TOTAL SNOWFALL FOR THE MONTH (MAR)…………..1.9 DEPARTURE…..+1.2
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……80.6 DEPARTURE….+28.0

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PRELIMINARY CLIMATE SUMMARY FOR MARCH 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

3/1 37/19/28/-3/0.10/1.9/…/.. 30 NNW VEC1 31 NNW RMY 31

3/2 The low since midnight is 8F, the daily normal low is 23F.

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MARCH DAILY RECORDS TO DATE

NONE.

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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 21/5/13/-13/T/0.1/367/61 36 N VEC1 36 N RMY 35
2/2 34/11/23/-3/0.00/0.0/550/91 25 NW VEC1 25 NW RMY 26
2/3 36/15/26/0/0.00/0.0/600/99 20 W VEC1 19 NNW RMY 18
2/4 32/17/25/-1/0.00/0.0/414/68 31 WNW VEC1 31 WNW RMY 34
2/5 33/13/23/-4/0.00/0.0/605/99 21 N VEC1 21 N RMY 20
2/6 29/14/22/-5/0.03/0.3/067/11 18 E VEC1 18 E RMY 18
2/7 25/2/14/-13/0.26/5.1/000/00 41 NW VEC1 41 NW RMY 47
2/8 19/-2/9/-18/0.00/0.0/563/91 38 NW VEC1 38 NW RMY 39
2/9 31/5/18/-9/0.00/0.0/615/99 38 NW VEC1 39 NW RMY 39
2/10 35/14/25/-2/0.12/1.6/305/49 33 SW VEC1 33 SW RMY 36
2/11 40/24/32/+5/0.02/0.3/269/43 41 NW VEC1 40 WNW RMY 43
2/12 36/21/29/+1/0.00/0.0/522/83 37 NW VEC1 37 NW RMY 39
2/13 38/16/27/-1/0.00/0.0/631/100 25 NNW VEC1 23 NNW RMY 26
2/14 35/23/29/+1/T/T/025/04 23 W VEC1 23 W RMY 24
2/15 36/22/29/+1/0.00/0.0/573/90 24 NNW VEC1 24 N RMY 24
2/16 37/25/31/+3/0.00/0.0/115/18 21 ENE VEC1 21 ENE RMY 23
2/17 37/26/32/+3/T/T/006/01 18 WSW VEC1 19 WSW RMY 19
2/18 39/30/35/+6/0.04/0.0/000/00 24 NE VEC1 24 NE RMY 24
2/19 43/28/36/+7/0.00/0.0/460/71 16 NNE VEC1 16 SSE RMY 17
2/20 35/28/32/+3/0.37/2.0/000/00 31 E VEC1 31 E RMY 31
2/21 31/26/29/0/0.08/0.7/000/00 21 ENE VEC1 21 ENE RMY 21
2/22 33/26/30/0/0.01/0.2/000/00 40 ENE VEC1 40 ENE RMY 40
2/23 30/21/26/-4/1.98/24.6/000/00 68 NE VEC1 63 NE RMY 76
2/24 32/16/24/-6/0.00/0.0/595/90 32 NW VEC1 32 NW RMY 34
2/25 38/13/26/-4/0.06/1.0/067/10 36 SSE VEC1 36 SSE RMY 34
2/26 43/26/35/+4/0.00/0.0/554/83 29 NW VEC1 29 NW RMY 30
2/27 43/19/31/0/0.00/0.0/657/98 21 SSW VEC1 21 SSW RMY 23
2/28 51/28/40/+9/0.00/0.0/591/88 39 S VEC1 39 S RMY 41