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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, MARCH 24, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0540E
SUNSET: 1801E
LIGHT SNOWFALL OVERNIGHT BRINGS SOME ACCUMULATION; SUNSHINE RETURNS
TODAY WITH DRIER CONDITIONS….
A period of light snow fell overnight leaving 0.4″ of accumulation
on the summit and a trace left on the ground at the 7am observation
this morning.
The day started with more clouds than sun, but as the day has
progressed, the clouds are becoming less numerous allowing the
sun to take over. Today is certainly a huge improvement over
yesterday’s cold dreary conditions.
Temperatures are still a bit chilly for this time of year with
readings only reaching the low to mid 40s by early this afternoon.
Dew point values were holding in the mid 20s through the morning,
but have dropped into the low 20s early this afternoon. These low
values are definitely helping to add a chill to the air.
Winds have been fairly steady today out of mainly the north-
northwest, but not overly strong. The average speed for the day so
far is around 10mph. Winds were gustier during the wee-hours of
the morning, but have settled down since. The peak gust for the
day so far is 26mph, which occurred just after 1:30am this morning.
The visibility has been excellent today, improving from around 60
miles early this morning to around 70 miles by late this morning
and early this afternoon.
The maximum temperature so far today is 44F degrees, which is
3 degrees below the normal high of 47F. The minimum temperature
since midnight is 29F degrees, which is equal to the normal low
of 29F.
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Today’s Observations:
7 A.M.
Weather: Broken stratocumulus, few lower stratocumulus all quadrants
Temperature: 31F; Dew Point: 27F; Relative Humidity: 86%
Wind: NNW @ 7 kts
Sea-level pressure: 1026.7 mb; 30.32 in. Hg: rising, then more slowly
Visibility: 60 miles
6-hr Max temp: 31F
6-hr Min temp: 29F
24-hr Precip: 0.05 inches
24-hr Snowfall: 0.4 inches
Snow Depth: Trace
BHO SA 1155 E35 BKN 60 267/31/27/3407/032/ FEW LWR SC ALQDS
TOTAL NEW SNW PST 24 HRS 0.4 INS/ 8/500 4/000 51036 6000/
70005 10031 20029
10 A.M.
Weather: Broken stratocumulus
Temperature: 38F; Dew Point: 26F; Relative Humidity: 62%
Wind: NNW @ 8G15 kts
Sea-level pressure: 1028.5 mb; 30.37 in. Hg: rising steadily
Visibility: 70 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E30 BKN 70 285/38/26/3308G15/037/ 8/500 52018
1 P.M.
Weather: Broken stratocumulus
Temperature: 43F; Dew Point: 22F; Relative Humidity: 42%
Wind: WNW @ 7G15 kts, wind west variable north-northwest
Sea-level pressure: 1027.4mb; 30.34 in. Hg: falling, then more rapidly
Visibility: 70 miles
6-hr Max temp: 44F
6-hr Min temp: 31F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E50 BKN 70 274/43/22/3007G15/034/ WND 26V34/
8/500 58011 10044 20031
————————————————————–
SUMMARY FOR MONDAY, MARCH 23, 2026
TEMPERATURE (DEGREES F)
MAX…….37 NORMAL…..46
MIN…….30 NORMAL…..29
MEAN……34 NORMAL…..38
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-4
TOTAL DEPARTURE FOR THE MONTH……………………..+110 [+4.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….31 DEPARTURE……..+3
TOTAL HEATING UNITS FOR THE MONTH (MAR)………596 DEPARTURE……-112
TOTAL HEATING UNITS FOR THE SEASON………….5138 DEPARTURE……..-2
TOTAL HEATING UNITS LAST SEASON TO DATE……..4743 DEPARTURE……+395
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)………..32 NNE @ 10:55 A.M.
VECTOR #1 (1-Sec)……….32 NNE @ 10:55 A.M.
VECTOR #2 (1-Sec)……….32 NNE @ 11:00 A.M.
DAVIS #1……………….31 NNE @ 10:55 A.M.
DAVIS #2 ………………29 NE @ 11:00 A.M.
RMY #1 (Instantaneous)…..32 NNE @ 10:55 A.M.
RMY #2 (Instantaneous)…..33 NNE @ 11:00 A.M.
MERLIN…………………31 N
RICHARDS (C5C) (Inst)……31 NNE @ 10:55 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………21 NNE @ 11:14 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..18 NNE @ 11:48 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..19 NNE @ 10:56 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………20 NE @ 10:57 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………25 ENE @ 07:10 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..18 NNE @ 11:48 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..19 NNE @ 10:56 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………18 NNE @ 11:13 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..10.5 NNE [252 total miles]
VECTOR #1………………10.9
VECTOR #2………………11.2
DAVIS #1……………….11.0 NNE
DAVIS #2……………….11.0 NE
RMY #1…………………10.6 NNE
RMY #2…………………10.9 N
RICHARDS (C5C)………….11.1
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.05 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH (MAR)……..4.83 DEPARTURE…..+0.72
TOTAL PRECIPITATION FOR THE YEAR (2026)…….11.42 DEPARTURE…..-1.19
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.4 DEPARTURE…..+0.1
TOTAL SNOWFALL FOR THE MONTH (MAR)…………..2.9 DEPARTURE…..-9.6
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……81.6 DEPARTURE….+17.2
————————————————————–
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 37/30/34/-4/0.67/0.2/…/.. 32 NNE VEC1 32 NNE RMY 32
3/24 The low since midnight is 29F, the daily normal low is 29F.
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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
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
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
RECORDS FOR MARCH 25
HIGH 76 IN 1910
LOW 8 IN 1888, 1956
PRECIP 1.84 INS. IN 1909
SNOWFALL 1.8 INS. IN 2018
PEAK GUST 69 MPH SE IN 1969
TODAY’S REPORT PREPARED BY: Matt Douglas
