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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, MARCH 23, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0542E
SUNSET: 1800E
DECENT RAINFALL OVERNIGHT, A LIGHT MIX OF WINTRY PRECIP TODAY….
Rain came down moderately most of the night with 1.14″ of liquid
being measured at 7am this morning. Sleep started mixing in with
the rain between 6-7am with a trace of accumulation of frozen
precipitation. The rain and sleet taper off between 7-8am and
then light drizzle began just after 9am. The drizzle has been
mixing with snow intermittently since just after 9:30am. The
snow tends to occur when heavier bands of ocean effect passes
over the area. So far, there has been no accumulation from the
snow.
Temperatures are very chilly, especially for this time of year.
With a raw wind out of the north-northeast and northeast, it
really feels like winter out there today. Readings fell from
the daily high at midnight, which was 37F, to the low 30s which
is where it’s held so far during the daylight hours. With the
wind however, wind chill values are in the low to mid 20s, brr!
Winds, as mentioned, have been gradually out of the north-
northeast to northeast all day. The average speed for the day
so far is around 12mph. The peak gust for the day so far is
32mph, which occurred just before 11am this morning.
The visibility has been limited due to precipitation and fog.
The view started the day at around 1/4 miles, but has improved
to as much as 10 miles at times, however it has been mainly
lower than that most of the day, especially when bands of
precipitation move through.
The maximum temperature so far today is 37F degrees, which is
9 degrees below the normal high of 46F. The minimum temperature
since midnight is 32F degrees, which is 3 degrees above the
normal low of 29F.
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Today’s Observations:
7 A.M.
Weather: Sky obscured, vertical visibility 200ft, light sleet and rain
Temperature: 33F; Dew Point: 33F; Relative Humidity: 100%
Wind: NE @ 12G23 kts
Sea-level pressure: 1009.8 mb; 29.82 in. Hg: rising, then falling
Visibility: 1/4 mile, fog
6-hr Max temp: 36F
6-hr Min temp: 33F
24-hr Precip: 1.14 inches
24-hr Snowfall: Trace
Snow Depth: Trace
BHO SA 1155 X W2 1/4IP-R-F 098/33/33/0512G23/982/ IPB24
TOTAL NEW SNW PST 24 HRS TRACE/ 8//// 4/000 50002 6059/
70114 10036 20033
10 A.M.
Weather: Sky obscured, vertical visibility 200ft, light drizzle,
intermittent light snow
Temperature: 32F; Dew Point: 32F; Relative Humidity: 100%
Wind: NNE @ 13G23 kts
Sea-level pressure: 1010.7 mb; 29.85 in. Hg: rising, then falling
Visibility: 1 mile, fog
3-hr Precip: 0.02 inches
3-hr Snowfall: Trace
BHO SA 1455 X W2 1L-F 107/32/32/0213G23/985/ L-B04 INTMT S-B39
TOTAL NEW SNW PST 3 HRS TRACE/ 8//// 50009 6002/
1 P.M.
Weather: Overcast stratocumulus, very light drizzle, intermittent
very light snow
Temperature: 33F; Dew Point: 31F; Relative Humidity: 92%
Wind: NNE @ 10G17 kts
Sea-level pressure: 1012.1mb; 29.89 in. Hg: rising, then more rapidly
Visibility: 10 miles, thin fog
6-hr Max temp: 33F
6-hr Min temp: 32F
6-hr Precip: 0.02 inches
6-hr Snowfall: Trace
Snow Depth: 0 inches
BHO SA 1755 E10 OVC 10L- 121/33/31/0210G17/989/ INTMT S-
PCPN VRY LGT THN F ALQDS TOTAL NEW SNW PST 6 HRS TRACE/
8/5// 53014 6002/ 10033 20032
————————————————————–
SUMMARY FOR SUNDAY, MARCH 22, 2026
TEMPERATURE (DEGREES F)
MAX…….44 NORMAL…..46
MIN…….33 NORMAL…..29
MEAN……39 NORMAL…..37
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+2
TOTAL DEPARTURE FOR THE MONTH……………………..+114 [+5.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….26 DEPARTURE……..-2
TOTAL HEATING UNITS FOR THE MONTH (MAR)………565 DEPARTURE……-115
TOTAL HEATING UNITS FOR THE SEASON………….5107 DEPARTURE……..-5
TOTAL HEATING UNITS LAST SEASON TO DATE……..4713 DEPARTURE……+394
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)………..41 SSW @ 01:47 P.M.
VECTOR #1 (1-Sec)……….42 SSW @ 01:47 P.M.
VECTOR #2 (1-Sec)……….40 S @ 01:47 P.M.
DAVIS #1……………….47 S @ 01:47 P.M.
DAVIS #2 ………………49 S @ 01:39 P.M.
RMY #1 (Instantaneous)…..42 SSW @ 01:47 P.M.
RMY #2 (Instantaneous)…..43 S @ 11:55 A.M.
MERLIN…………………40 S
RICHARDS (C5C) (Inst)……41 SSW @ 01:47 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………31 SSW @ 11:51 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..30 SSW @ 01:49 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..30 S @ 11:54 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………31 S @ 01:49 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………32 S @ 01:55 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..29 SSW @ 01:49 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..30 S @ 11:54 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………28 SSW @ 01:48 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..12.3 SSW [296 total miles]
VECTOR #1………………12.9
VECTOR #2………………13.5
DAVIS #1……………….12.8 S
DAVIS #2……………….13.7 S
RMY #1…………………12.7 S
RMY #2…………………13.5 S
RICHARDS (C5C)………….12.8
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..1.14 DEPARTURE…..+0.95
TOTAL PRECIPITATION FOR THE MONTH (MAR)……..4.78 DEPARTURE…..+0.86
TOTAL PRECIPITATION FOR THE YEAR (2026)…….11.37 DEPARTURE…..-1.05
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE…..-0.5
TOTAL SNOWFALL FOR THE MONTH (MAR)…………..2.5 DEPARTURE…..-9.7
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……81.2 DEPARTURE….+17.1
————————————————————–
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/-3/0.10/1.9/209/31 30 NNW VEC1 31 NNW RMY 31
3/2 28/8/18/-14/0.00/0.0/665/98 25 N VEC1 25 NNW RMY 25
3/3 32/17/25/-7/0.43/0.5/211/31 21 S VEC1 21 S RMY 22
3/4 54/30/42/+10/0.22/0.0/670/98 20 W VEC1 19 W RMY 20
3/5 46/33/40/+8/0.36/0.0/000/00 35 ENE VEC1 35 ENE RMY 38
3/6 33/26/30/-3/0.06/T/000/00 32 ENE VEC1 32 ENE RMY 33
3/7 46/32/39/+6/0.01/0.0/000/00 39 SSW VEC1 39 SSW RMY 42
3/8 54/46/50/+17/0.01/0.0/007/01 33 SSW VEC1 34 SSW RMY 34
3/9 67/45/56/+23/0.00/0.0/684/98 30 SSW VEC1 30 SW RMY 31
3/10 74/48/61/+27/0.00/0.0/673/96 28 SW VEC1 27 WSW RMY 28
3/11 59/39/49/+15/0.12/0.0/500/71 38 SSW VEC1 38 SSW RMY 42
3/12 57/30/44/+10/0.18/T/000/00 35 NW VEC1 34 WNW RMY 37
3/13 42/25/34/0/T/T/383/54 32 WNW VEC1 32 NW RMY 34
3/14 47/30/39/+4/0.01/0.1/606/85 54 WNW VEC1 54 WNW RMY 56
3/15 41/28/35/0/0.00/0.0/107/15 30 SE VEC1 30 SE RMY 29
3/16 60/36/48/+13/1.43/0.0/000/00 71 SSW VEC1 72 S RMY 74
3/17 59/24/42/+6/0.02/T/555/77 81 S VEC1 80 S RMY 83
3/18 35/20/28/-8/0.00/0.0/521/72 36 WNW VEC1 36 WNW RMY 37
3/19 38/23/31/-5/0.00/0.0/…/.. 21 SSW VEC1 21 SSW RMY 21
3/20 54/31/43/+6/0.15/0.0/…/.. 43 SSW VEC1 42 SSW RMY 45
3/21 53/35/44/+7/0.00/0.0/…/.. 30 NW VEC1 32 NW RMY 31
3/22 44/33/39/+2/0.51/0.0/…/.. 41 SSW VEC1 42 SSW RMY 42
3/23 The low since midnight is 32F, the daily normal low is 29F.
————————————————————–
MARCH DAILY RECORDS TO DATE
3/9 RECORD HIGH MINIMUM TEMPERATURE OF 45F,
BEATING THE PREVIOUS RECORD OF 42F SET IN 1922
3/10 RECORD HIGH MAXIMUM TEMPERATURE OF 74F,
BEATING THE PREVIOUS RECORD OF 69F SET IN 1977
3/17 RECORD PEAK WIND GUST OF 81 MPH,
BEATING THE OLD RECORD OF 70 MPH SET IN 1973
————————————————————–
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR MARCH 23
HIGH 78 IN 1938
LOW 3 IN 1934
PRECIP 2.52 INS. IN 2010
SNOWFALL 3.0 INS. IN 1977
PEAK GUST 78e MPH W IN 1940
RECORDS FOR MARCH 24
HIGH 70 IN 1920
LOW 6 IN 1906
PRECIP 1.51 INS. IN 1956
SNOWFALL 12.3 INS. IN 1956
PEAK GUST 71 MPH W IN 1968
TODAY’S REPORT PREPARED BY: Matt Douglas
