Sunday, November 23, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, NOVEMBER 23, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0645E
SUNSET: 1616E
CLEAR SKIES EARLY THIS MORNING QUICKLY REPLACED BY AN OVERCAST BY
MID MORNING….
Skies were clear early this morning, giving us a very nice view
of the sunrise. However, mid level clouds quickly advanced into
the area from the west leaving us with overcast skies by the mid
morning hours as a clipper system and associated warm front push
through the region.
Temperatures started the day on the cold side with the morning low
in the upper 20s. Readings have been slowly recovering reaching the
upper 30s by early this afternoon. Dew point values have been
holding generally in the mid 20s, adding a decided chill to the
air.
The wind has been fairly steady, but on the lighter side today
with an average speed for the day so far of around 8mph. The
peak gust for the day so far is 18mph, which occurred just after
6am this morning.
Visibility is quite decent today, generally holding in the 60-70
mile range so far for the day.
The maximum temperature so far today is 39F degrees, which is
9 degrees below the normal high of 48F. The minimum temperature
since midnight is 28F degrees, which is 4 degrees below the
normal low of 32F.
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Today’s Observations:
7 A.M.
Weather: Clear, few stratocumulus offshore distant NE-SE,
few altocumulus/castellanus distant ESE-S and distant WSW-NW-NE,
few cirrus distant E-S
Temperature: 29F; Dew Point: 23F; Relative Humidity: 77%
Wind: W @ 8 kts
Sea-level pressure: 1017.2 mb; 30.04 in. Hg: rising, then more rapidly
Visibility: 60 miles
6-hr Max temp: 30F
6-hr Min temp: 28F
24-hr Precip: 0.16 inches
24-hr Snowfall: 0.0 inches
BHO SA 1155 CLR 60 172/29/23/2708/004/ FEW SC OFFSHR DSNT NE-SE
FEW AC/ACC DSNT ESE-S AND DSNT WSW-NW-NE FEW CI DSNT E-S/
8/581 53008 70016 10030 20028
10 A.M.
Weather: Broken altocumulus, few stratocumulus offshore distant
ENE-ESE, virga distant S-W-N
Temperature: 36F; Dew Point: 26F; Relative Humidity: 65%
Wind: WSW @ 5 kts, wind light
Sea-level pressure: 1016.7 mb; 30.02 in. Hg: rising, then falling
Visibility: 70 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E90 BKN 70 167/36/26/2405/002/ FEW SC OFFSHR DSNT
ENE-ESE VIRGA DSNT S-W-N WND LGT/ 8/550 58005
1 P.M.
Weather: Overcast altostratus/altocumulus, few breaks in overcast
distant NE-SE-SSW, few stratocumulus distant ENE-ESE and
distant SE-SSW
Temperature: 38F; Dew Point: 25F; Relative Humidity: 58%
Wind: WSW @ 6 kts, wind light
Sea-level pressure: 1014.2 mb; 29.95 in. Hg: falling, then more slowly
Visibility: 70 miles
6-hr Max temp: 39F
6-hr Min temp: 29F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
BHO SA 1755 E80 OVC 70 142/38/25/2506/995/ FEW BINOVC DSNT
NE-SE-SSW FEW SC DSNT ENE-ESE AND DSNT SE-SSW WND LGT/ 8/57/
56025 10039 20029
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SUMMARY FOR SATURDAY, NOVEMBER 22, 2025
TEMPERATURE (DEGREES F)
MAX…….45 NORMAL…..48
MIN…….31 NORMAL…..32
MEAN……38 NORMAL…..40
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-2
TOTAL DEPARTURE FOR THE MONTH………………………-31 [-1.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….27 DEPARTURE……..+2
TOTAL HEATING UNITS FOR THE MONTH……………508 DEPARTURE…….+30
TOTAL HEATING UNITS FOR THE SEASON…………..919 DEPARTURE…….-71
TOTAL HEATING UNITS LAST SEASON TO DATE………740 DEPARTURE……+179
COOLING DEGREE DAYS (SEASON JAN 2025 THRU DEC 2025)
TOTAL COOLING UNITS FOR YESTERDAY……………..0 DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH……………..0 DEPARTURE………0
TOTAL COOLING UNITS FOR THE SEASON…………..756 DEPARTURE…….+79
TOTAL COOLING UNITS LAST SEASON TO DATE………768 DEPARTURE…….-12
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)………..22 NNW @ 07:32 P.M.
VECTOR #1 (1-Sec)……….22 NNW @ 07:15 P.M.
VECTOR #2 (1-Sec)……….21 NW @ 11:34 P.M.
DAVIS #1……………….20 NNW @ 07:14 P.M.
DAVIS #2 ………………19 NNW @ 04:18 P.M.
RMY #1 (Instantaneous)…..23 NNW @ 11:28 P.M.
RMY #2 (Instantaneous)…..23 NNW @ 11:32 P.M.
MERLIN…………………21 N
RICHARDS (C5C) (Inst)……21 WSW @ 12:14 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………15 NNW @ 11:30 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..15 NNW @ 07:16 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15 NW @ 11:35 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………15 NNW @ 11:33 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………15 N @ 11:35 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..15 NNW @ 11:39 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..15 NW @ 11:35 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………15 NNW @ 07:16 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………7.3 NNW [176 total miles]
VECTOR #1……………….7.9
VECTOR #2……………….8.2
DAVIS #1………………..7.8 WNW
DAVIS #2………………..7.7 NW
RMY #1………………….7.8 WNW
RMY #2………………….8.1 WNW
RICHARDS (C5C)…………..8.2
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.16 DEPARTURE…..+0.02
TOTAL PRECIPITATION FOR THE MONTH…………..1.77 DEPARTURE…..-1.34
TOTAL PRECIPITATION FOR THE YEAR (2025)…….44.08 DEPARTURE…..-3.19
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE…..-0.1
TOTAL SNOWFALL FOR THE MONTH………………..0.1 DEPARTURE…..-0.8
TOTAL SNOWFALL FOR THE SEASON (2025-2026)…….0.1 DEPARTURE…..-1.5
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PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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
11/1 56/38/47/+0/0.00/0.0/619/100 50 W VEC1 50 W RMY 50
11/2 53/33/43/-4/0.00/0.0/617/100 23 WNW VEC1 23 WNW RMY 24
11/3 54/42/48/+2/0.16/0.0/012/02 41 WNW VEC1 41 W RMY 46
11/4 54/42/48/+2/0.00/0.0/605/99 52 NW VEC1 52 NW RMY 54
11/5 56/39/48/+2/0.06/0.0/091/15 50 W VEC1 47 W RMY 52
11/6 50/34/42/-3/0.02/T/449/74 48 WNW VEC1 48 WNW RMY 49
11/7 52/31/42/-3/0.04/0.0/448/74 43 SSW VEC1 42 SSW RMY 47
11/8 60/45/53/+8/0.18/0.0/307/51 32 WNW VEC1 33 WNW RMY 33
11/9 61/46/54/+10/0.15/0.0/216/36 33 ESE VEC1 34 ESE RMY 35
11/10 54/36/45/+1/0.44/0.0/000/00 32 W VEC1 31 W RMY 31
11/11 37/30/34/-9/T/T/131/22 46 WNW VEC1 44 WNW RMY 47
11/12 44/30/37/-6/T/T/148/25 32 W VEC1 32 W RMY 33
11/13 47/32/40/-3/T/0.0/071/12 32 NW VEC1 32 NW RMY 34
11/14 46/32/39/-3/0.00/0.0/495/84 30 NNW VEC1 30 NNW RMY 30
11/15 44/28/36/-6/0.37/0.1/522/89 26 SSE VEC1 26 SSE RMY 26
11/16 52/33/43/+1/0.19/T/280/48 50 NW VEC1 49 W RMY 53
11/17 41/29/35/-6/0.00/0.0/495/85 45 WNW VEC1 45 WNW RMY 46
11/18 46/30/38/-3/0.00/0.0/574/99 31 WNW VEC1 32 WNW RMY 33
11/19 44/27/36/-5/0.00/0.0/…/.. 20 NNW VEC1 19 NW RMY 20
11/20 45/27/36/-4/0.00/0.0/…/.. 16 NNW VEC1 16 NNW RMY 16
11/21 45/34/40/0/0.00/0.0/…/.. 28 SW VEC1 28 SW RMY 26
11/22 45/31/38/-2/0.16/0.0/…/.. 22 NNW VEC1 22 NNW RMY 23
11/23 The low since midnight is 28F, the daily normal low is 32F.
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NOVEMBER DAILY RECORDS TO DATE
NONE.
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR NOVEMBER 23
HIGH 73 IN 1931
LOW 9 IN 1888, 2018
PRECIP 2.33 INS IN 2006
SNOWFALL 5.5 INS IN 1989
PEAK GUST 64e S IN 1953
RECORDS FOR NOVEMBER 24
HIGH 69 IN 1931
LOW 7 IN 1897
PRECIP 1.76 INCHES IN 1901
SNOWFALL 4.5 INS IN 1936
PEAK GUST 69 SSW IN 1959
TODAY’S REPORT PREPARED BY: Matt Douglas
