Sunday, March 1, 2026

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

SUNDAY, MARCH 1, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0619E
SUNSET:  1734E

METEOROLOGICAL SPRING BEGINS WITH ACCUMULATING SNOWFALL….

It would appear Mother Nature got things backwards the last two
days. Yesterday was spring-like with temperatures reaching the
low 50s on what was the last day of Meteorological Winter, then
today, a band of light to, at times moderate snow drops nearly
2″ of snow here on the summit. What a nice way to start off
Meteorological Spring.

The snow began just before the 10am observation and ended just
before the 1pm observation. 1.9″ was recorded within that 3 hr
period as the snow did come down moderately at times. The skies
are clearing behind this band with the visibility shooting up
to 70 miles in the nice clear air.

Temperatures reached the mid 30s during the morning before the
snow arrived, then dropped to 29F during the snowfall. Now it’s
recovering again back into the lower 30s. Dew points have been
generally in the 20s all day.

The wind has been fairly steady most of the day, gradually
veering from a westerly direction during the wee hours of the
morning to a northerly direction through the balance of the
morning and into this afternoon. The average speed for the day
so far is around 12mph. The peak gust for the day so far is
31mph, which occurred just before 10am.

Visibility has varied throughout the day. It was limited early this
morning by haziness, then by snow and fog later in the morning
into very early this afternoon. The view dropped under 1 mile at
times during the snow. Once the snow moved out, the view improved
markedly up to around 70 miles this afternoon.

The maximum temperature so far today is 37F degrees at midnight,
which is 3 degrees below the normal high of 40F. The minimum
temperature since midnight is 29F degrees, which is 6 degrees
above 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: Broken altocumulus, broken cirrostratus, broken cirrus
Temperature: 34F; Dew Point: 22F; Relative Humidity: 60%
Wind: N @ 12G20 kts
Sea-level pressure: 1018.0 mb; 30.006 in. Hg: rising, then more rapidly
Visibility: 40 miles, hazy
6-hr Max temp: 36F
6-hr Min temp: 33F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 22 inches
BHO SA 1155 E90 BKN 200 BKN 250 BKN 40 180/34/22/3512G20/006/
HAZY/ 8/056 4/022 53018 10036 20033

10 A.M.
Weather: Sky obscured, vertical visibility 300ft, light snow
Temperature: 32F; Dew Point: 28F; Relative Humidity: 84%
Wind: NNW @ 12G20 kts
Sea-level pressure: 1020.8 mb; 30.14 in. Hg: rising, then more rapidly
Visibility: 1.5 miles, fog
3-hr Precip: Trace
3-hr Snowfall: Trace
BHO SA 1455 X W3 11/2S-F 208/32/28/3412G20/014/ S-B39 TOTAL
NEW SNW PST 3 HRS TRACE/ 8//// 53028 6000/

1 P.M.
Weather: Broken stratocumulus, overcast altocumulus/altostratus
Temperature: 30F; Dew Point: 27F; Relative Humidity: 89%
Wind: N @ 7 kts
Sea-level pressure: 1021.6mb; 30.17 in. Hg: rising, then falling
Visibility: 70 miles
6-hr Max temp: 35F
6-hr Min temp: 29F
6-hr Precip: 0.10 inches
6-hr Snowfall: 1.9 inches
Snow Depth: 24 inches
BHO SA 1755 E35 BKN 75 OVC 70 216/30/27/3507/017/ CLRG LINE
DSNT WNW-NNE VIRGA DSNT E-S-SW S-E28 TOTAL NEW SNW PST 6 HRS
1.9 INS/ 8/57/ 4/024 50008 6010/ 10035 20029

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SUMMARY FOR SATURDAY, FEBRUARY 28, 2026

TEMPERATURE (DEGREES F)
MAX…….51   NORMAL…..40
MIN…….28   NORMAL…..23
MEAN……40   NORMAL…..31

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+9
TOTAL DEPARTURE FOR THE MONTH………………………-40 [-1.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….25  DEPARTURE……..-9
TOTAL HEATING UNITS FOR THE MONTH (FEB)……..1069  DEPARTURE…….+40
TOTAL HEATING UNITS FOR THE SEASON………….4542  DEPARTURE……+110
TOTAL HEATING UNITS LAST SEASON TO DATE……..4181  DEPARTURE……+361

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)………..39 S    @   12:06 P.M.
VECTOR #1 (1-Sec)……….39 S    @   12:06 P.M.
VECTOR #2 (1-Sec)……….37 S    @   12:06 P.M
DAVIS #1……………….37 S    @   12:06 P.M.
DAVIS #2 ………………41 S    @   12:06 P.M.
RMY #1 (Instantaneous)…..41 S    @   12:06 P.M.
RMY #2 (Instantaneous)…..39 S    @   12:06 P.M.
MERLIN…………………37 S
RICHARDS (C5C) (Inst)……38 S    @   12:06 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………24 SSW  @   12:12 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..25 S    @   12:07 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..26 S    @   12:07 P.M
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………25 S    @   12:10 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………30 S    @   12:07 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..24 S    @   12:07 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 S    @   12:07 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………23 S    @   12:07 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..13.4 SSW [322 total miles] VECTOR #1………………13.7
VECTOR #2………………14.2
DAVIS #1……………….13.4 SSW
DAVIS #2……………….14.4 SSW
RMY #1…………………13.6 SSW
RMY #2…………………14.3 SSW
RICHARDS (C5C)………….13.1

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.16
TOTAL PRECIPITATION FOR THE MONTH (FEB)……..2.97 DEPARTURE…..-1.03
TOTAL PRECIPITATION FOR THE YEAR (2026)……..6.59 DEPARTURE…..-1.91

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE…..-0.6
TOTAL SNOWFALL FOR THE MONTH (FEB)………….35.9 DEPARTURE….+17.7
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……78.7 DEPARTURE….+26.8

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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

3/1  The low since midnight is 29F, the daily normal low is 23F.

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FEBRUARY DAILY RECORDS TO DATE

2/23/26: DAILY RECORD SNOWFALL OF 24.6 INS,
SURPASSES THE PREVIOUS RECORD OF 10.6 IN IN 1967

2/23/26: DAILY RECORD PRECIPITATION OF 1.98 INS,
SURPASSES THE PREVIOUS RECORD OF 1.48 IN IN 1967

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

RECORDS FOR MARCH 1
HIGH 62 IN 1972
LOW -3 IN 1886
PRECIP 1.65 INS. IN 1900
SNOWFALL 9.4 INS. IN 1949
PEAK GUST 78 WSW IN 1966

RECORDS FOR MARCH 2
HIGH 63 IN 2004
LOW -3 IN 1886
PRE 3.47 INS. IN 2018
SNOW 8.2 INS. IN 2009
WIND 75 MPH NW IN 1966

TODAY’S REPORT PREPARED BY: Matt Douglas/Lily Chen