Sunday, October 26, 2025
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, OCTOBER 26, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0610E
SUNSET: 1645E
COOL, DRY AIR WITH PARTLY CLOUDY CONDITIONS TODAY….
This morning featured a beautiful sunrise under partly cloudy
skies. With cool, dry air, we have that crisp, deep blue sky
that has given us a brilliant sky, comfortable conditions, and
excellent visibility. With the exception of an offshore
thunderstorm to our distant ENE during the mid morning hours,
we have had little excitement otherwise. It has been the perfect
day for any outdoor activities.
Overnight temperatures dipped to 37F which is just slightly below
normal for this time of year, but we made a decent rebound with
all day sunshine. Though we haven’t hit the normal high for today,
it has still felt pretty comfortable all day, except maybe a bit
of a chill with the northwesterly breeze. Dew points have remained
in the upper to mid 30’s today and have continued to decrease
throughout the day, giving way to the high pressure building to
our north.
We have had a somewhat steady northwesterly flow for much of the
day which is not much different than yesterday. The wind has been
a little on the lighter side, with an average speed for the day
so far around 9mph. We had an uptick in wind speed in the afternoon
hours. The peak gust of the day so far is 23mph, which occurred
at 12:05pm this afternoon.
Visibility has been excellent today, holding at around 60-70
miles throughout the day.
The maximum temperature so far today is 55F degrees, which is
2 degrees below the normal high of 57F. The minimum temperature
since midnight is 37F degrees, which is 3 degrees below the
normal low of 40F.
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Today’s Observations:
7 A.M.
Weather: Scattered altocumulus, few stratocumulus NW-E,
few altocumulus/castellanus distant ESE-SSE
Temperature: 39F; Dew Point: 36F; Relative Humidity: 90%
Wind: NNW @ 9 kts
Sea-level pressure: 1028.9 mb; 30.38 in. Hg: rising unsteadily
Visibility: 60 miles
6-hr Max temp: 44F
6-hr Min temp: 37F
24-hr Precip: 0.00 inches
BHO SA 1155 75 SCT 60 289/39/36/3309/038/ FEW SC NW-E FEW
AC/ACC DSNT ESE-SSE/ 8/580 52008 10044 20037
10 A.M.
Weather: Clear, few cumulonimbus ENE, few stratocumulus all
quadrants, few altocumulus NW-ESE-SSW
Temperature: 52F; Dew Point: 37F; Relative Humidity: 56%
Wind: NW @ 7 kts
Sea-level pressure: 1029.3 mb; 30.40 in. Hg: rising, then falling
Visibility: 60 miles
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 60 293/52/37/3207/040/ FEW CB ENE FEW SC ALQDS
FEW AC NW-ESE-SSW/ 8/963 50004
1 P.M.
Weather: Scattered stratocumulus, few altocumulus/castellanus
NE-ESE
Temperature: 55 Dew Point: 35F; Relative Humidity: 46%
Wind: NNW @ 8G16 kts
Sea-level pressure: 1027.9 mb; 30.35 in. Hg: falling, then more
rapidly
Visibility: 70 miles
6-hr Max temp: 55F
6-hr Min temp: 39F
6-hr Precip: 0.00 inches
BHO SA 1755 50 SCT 70 279/55/35/3308G16/035/ FEW AC/ACC NE-ESE/
8/580 58014 10055 20039
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SUMMARY FOR SATURDAY, OCTOBER 25, 2025
TEMPERATURE (DEGREES F)
MAX…….55 NORMAL…..58
MIN…….38 NORMAL…..41
MEAN……47 NORMAL…..49
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-2
TOTAL DEPARTURE FOR THE MONTH………………………+63 [+2.3 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….18 DEPARTURE……..+2
TOTAL HEATING UNITS FOR THE MONTH……………242 DEPARTURE…….-50
TOTAL HEATING UNITS FOR THE SEASON…………..305 DEPARTURE……-105
TOTAL HEATING UNITS LAST SEASON TO DATE………295 DEPARTURE…….+10
COOLING DEGREE DAYS (SEASON JAN 2025 THRU DEC 2025)
TOTAL COOLING UNITS FOR YESTERDAY……………..0 DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………….20 DEPARTURE…….+13
TOTAL COOLING UNITS FOR THE SEASON…………..756 DEPARTURE…….+79
TOTAL COOLING UNITS LAST SEASON TO DATE………761 DEPARTURE……..-5
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)………..23 NW @ 02:16 P.M.
VECTOR #1 (1-Sec)……….23 NNW @ 02:12 P.M.
VECTOR #2 (1-Sec)……….24 NW @ 02:16 P.M.
DAVIS #1……………….22 NW @ 02:17 P.M.
DAVIS #2 ………………22 NNW @ 02:16 P.M.
RMY #1 (Instantaneous)…..23 NNW @ 02:12 P.M.
RMY #2 (Instantaneous)…..24 NW @ 02:11 P.M.
MERLIN…………………21 NW
RICHARDS (C5C) (Inst)……22 NNW @ 02:17 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 NNW @ 02:17 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..16 NNW @ 02:17 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16 NW @ 02:16 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 WNW @ 02:17 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………16 NW @ 02:17 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 NNW @ 02:17 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 NNW @ 01:57 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16 NNW @ 02:17 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………6.8 NW [163 total miles]
VECTOR #1……………….8.2
VECTOR #2……………….8.7
DAVIS #1………………..8.2 NW
DAVIS #2………………….M
RMY #1………………….7.9 NW
RMY #2………………….8.5 NW
RICHARDS (C5C)…………..8.6
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.19
TOTAL PRECIPITATION FOR THE MONTH…………..5.53 DEPARTURE…..+1.12
TOTAL PRECIPITATION FOR THE YEAR (2025)…….41.35 DEPARTURE…..-1.73
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PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/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
10/1 61/49/55/-3/0.00/668/97 30 NE VEC1 30 NE RMY 30
10/2 60/43/52/-6/0.00/637/91 28 NE VEC1 28 NE RMY 28
10/3 72/46/59/+2/0.00/670/96 23 SW VEC1 23 SW RMY 23
10/4 81/53/67/+10/0.00/667/96 18 NNW VEC1 18 NW RMY 19
10/5 84/62/73/+16/0.00/664/96 18 SSW VEC1 18 SSW RMY 18
10/6 83/59/71/+15/0.00/649/94 25 SSW VEC1 25 SSW RMY 26
10/7 79/59/69/+13/0.00/440/64 35 SSW VEC1 35 SSW RMY 36
10/8 68/49/59/+4/0.80/027/04 33 NW VEC1 34 SSW RMY 35 TSTM
10/9 55/40/48/-7/0.00/667/98 33 NNW VEC1 35 NNW RMY 35
10/10 61/38/50/-5/0.00/664/98 25 SSW VEC1 26 S RMY 26
10/11 66/49/58/+4/0.00/243/36 21 SW VEC1 21 SW RMY 20
10/12 56/52/54/0/0.91/000/00 50 ENE VEC1 50 ENE RMY 52
10/13 53/50/52/-2/2.14/000/00 51 ENE VEC1 51 ENE RMY 51
10/14 53/50/52/-1/0.49/000/00 36 NE VEC1 36 NNE RMY 35
10/15 62/44/53/0/T/319/48 33 NNW VEC1 33 NNW RMY 35
10/16 53/39/46/-6/0.00/410/62 35 NW VEC1 35 NW RMY 36
10/17 61/41/51/-1/0.00/652/99 26 N VEC1 26 N RMY 27
10/18 63/40/52/0/0.00/604/92 17 SSE VEC1 16 NNW RMY 17
10/19 68/50/59/+8/0.00/568/87 28 SSE VEC1 29 SSE RMY 28
10/20 64/51/58/+7/0.75/072/11 40 SSE VEC1 40 SSE RMY 41
10/21 65/47/56/+5/0.00/648/100 28 WSW VEC1 28 WSW RMY 29
10/22 67/51/59/+9/0.44/387/60 32 SW VEC1 33 SW RMY 33
10/23 61/45/53/+3/0.00/…/.. 29 WSW VEC1 29 WSW RMY 29
10/24 58/41/50/0/0.00/…/.. 20 WNW VEC1 20 WNW RMY 19
10/25 55/38/47/-2/0.00/…/.. 23 NW VEC1 23 NNW RMY 23
10/26 The low since midnight is 37F, the daily normal low is 40F.
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OCTOBER DAILY RECORDS TO DATE
10/5 HIGH MINIMUM TEMPERATURE OF 62F,
TIED THE RECORD FOR THE DATE WITH 1910
10/6 HIGH MAXIMUM TEMPERATURE OF 83F,
TIED THE RECORD FOR THE DATE WITH 1990 AND 2007
10/13 PEAK GUST OF 51 MPH ENE,
BEAT THE OLD RECORD OF 46e MPH W IN 1950
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR OCTOBER 26
HIGH 80F IN 1963
LOW 24F IN 1921,1933
PRECIP 2.23 INCHES IN 2021
SNOW 3.0 INCHES IN 1962
WIND 59 MPH SSE IN 1967
RECORDS FOR OCTOBER 27
HIGH 83F IN 1963
LOW 21F IN 1936
PRECIP 2.08 INCHES IN 2018
SNOW 2.5 INCHES IN 2011
WIND 66 MPH NNE IN 2021
TODAY’S REPORT PREPARED BY: Amanda Joly
