Tuesday, November 25, 2025

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

TUESDAY, NOVEMBER 25, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0647E
SUNSET:  1615E

OVERCAST AND BREEZY DAY ON TOP OF BLUE HILL WITH MILD TEMPERATURES….

Clouds, mainly of the mid level variety, have dominated the
sky today. While there has been no precipitation falling yet,
it is still a rather dim day with a slight dampness to the air.
Despite temperatures on the mild side, the combination of lack
of sun, dampness, and gusty breeze, it’s making it feel a bit
chilly out there today.

As mentioned, temperatures are on the mild side again today.
Readings have reached the upper 40s by early this afternoon.
Dew point values have been gradually creeping up from the low
30s early this morning to around 40F by early this afternoon.

The wind has been fairly steady out of the southwest and south-
southwest. The average speed for the day so far is around 14mph.
Gusts have been occasionally exceeding 20mph since early this
morning. The peak gust for the day so far is 30mph, which
occurred just before 10am this morning.

Visibility is quite decent today despite the cloud cover. We had
about 50 miles of visibility early this morning, but it improved
to around 70 miles by mid to late morning, where it remains into
early this afternoon.

The maximum temperature so far today is 48F degrees, which is
1 degree above the normal high of 47F. The minimum temperature
since midnight is 35F degrees, which is 4 degrees above the
normal low of 31F.

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Today’s Observations:

7 A.M.
Weather: Overcast altostratus, few breaks in overcast distant NE-S
Temperature: 40F; Dew Point: 31F; Relative Humidity: 70%
Wind: SSW @ 14G20 kts
Sea-level pressure: 1025.0 mb; 30.27 in. Hg: rising, then more rapidly
Visibility: 50 miles
6-hr Max temp: 40F
6-hr Min temp: 35F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
BHO SA 1155 E130 OVC 50 250/40/31/2114G20/027/ FEW BINOVC DSNT
NE-S/ 8/02/ 53005 10040 20035

10 A.M.
Weather: Overcast altocumulus/altostratus
Temperature: 44F; Dew Point: 35F; Relative Humidity: 70%
Wind: SSW @ 15G26 kts, peak wind SSW 30mph at 9:49 A.M.
Sea-level pressure: 1024.5 mb; 30.25 in. Hg: rising, then falling
Visibility: 70 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E130 OVC 70 245/44/35/2115G26/025/ PK WND 2126/49/
8/07/ 58005

1 P.M.
Weather: Overcast altocumulus/altostratus, few stratocumulus
distant ESE-S-SW
Temperature: 48F; Dew Point: 40F; Relative Humidity: 70%
Wind: SW @ 10G18 kts
Sea-level pressure: 1022.7 mb; 30.20 in. Hg: falling, then more rapidly
Visibility: 70 miles
6-hr Max temp: 48F
6-hr Min temp: 40F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
BHO SA 1755 E120 OVC 70 227/48/40/2210G18/020/ FEW SC DSNT
ESE-S-SW/ 8/57/ 58018 10048 20040

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SUMMARY FOR MONDAY, NOVEMBER 24, 2025

TEMPERATURE (DEGREES F)
MAX…….49   NORMAL…..47
MIN…….33   NORMAL…..31
MEAN……41   NORMAL…..39

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+2
TOTAL DEPARTURE FOR THE MONTH………………………-34 [-1.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….24  DEPARTURE……..-2
TOTAL HEATING UNITS FOR THE MONTH……………563  DEPARTURE…….+33
TOTAL HEATING UNITS FOR THE SEASON…………..974  DEPARTURE…….-67
TOTAL HEATING UNITS LAST SEASON TO DATE………787  DEPARTURE……+187

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)………..30 NW   @   10:01 A.M.
VECTOR #1 (1-Sec)……….31 NW   @   10:01 A.M.
VECTOR #2 (1-Sec)……….31 NW   @   10:52 A.M.
DAVIS #1……………….27 NW   @   10:01 A.M.
DAVIS #2 ………………27 NNW  @   10:42 A.M.
RMY #1 (Instantaneous)…..30 NW   @   10:51 A.M.
RMY #2 (Instantaneous)…..31 NW   @   10:52 A.M.
MERLIN…………………29 NW
RICHARDS (C5C) (Inst)……29 NW   @   10:01 A.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………19 NW   @   10:14 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..20 NNW  @   10:53 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..21 NW   @   10:53 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………21 NW   @   10:53 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………20 NNW  @   10:53 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..20 NNW  @   10:53 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 NW   @   10:53 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………20 NNW  @   10:53 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………9.6 NW [231 total miles] VECTOR #1……………….9.9
VECTOR #2………………10.6
DAVIS #1……………….10.1 WNW
DAVIS #2……………….10.2 NW
RMY #1………………….9.7 WNW
RMY #2…………………10.3 WNW
RICHARDS (C5C)………….10.2

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH…………..1.77 DEPARTURE…..-1.63
TOTAL PRECIPITATION FOR THE YEAR (2025)…….44.08 DEPARTURE…..-3.48

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…..-1.0
TOTAL SNOWFALL FOR THE SEASON (2025-2026)…….0.1 DEPARTURE…..-1.7

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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/-5/0.00/0.0/527/91        20 NNW VEC1 19 NW  RMY 20
11/20 45/27/36/-4/0.00/0.0/300/52        16 NNW VEC1 16 NNW RMY 16
11/21 45/34/40/0/0.00/0.0/075/13         28 SW  VEC1 28 SW  RMY 26
11/22 45/31/38/-2/0.16/0.0/046/08        22 NNW VEC1 22 NNW RMY 23
11/23 39/28/34/-5/T/T/154/27             18 WNW VEC1 19 WNW RMY 19
11/24 49/33/41/+2/T/T/506/89             30 NW  VEC1 31 NW  RMY 30

11/25 The low since midnight is 35F, the daily normal low is 31F.

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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 25
HIGH 71 IN 1979
LOW 13 IN 1938
PRECIP 3.10 INCHES IN 1983
SNOWFALL 4.0 INS IN 1938
PEAK GUST 94e E IN 1950

RECORDS FOR NOVEMBER 26
HIGH 66 IN 1979
LOW 6 IN 1938
PRECIP 2.39 INS IN 1950
SNOWFALL 3.0 INS IN 1974
PEAK GUST 78 SSE IN 1964

TODAY’S REPORT PREPARED BY: Matt Douglas