Sunday, November 2, 2025

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

SUNDAY, NOVEMBER 2, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0619E
SUNSET:  1636E

SEASONABLE, CLEAR WEATHER CONTINUES WITH DRY CONDITIONS ….

Today has featured plenty of bright sunshine and mostly clear
skies, with few clouds lingering offshore and along the horizon.
As the frontal system has continued to pass winds have started
to slow down, though we still have a westerly flow.

Temperatures continue to trend cooler, as we were 10 degrees
cooler this morning at 7am than we were at 7am the previous
day. Dry air in the region has lowered the dew points values
which have been in the upper 20s and low 30s throughout the
day.

The wind has finally settled down after a very active past few
days. The average speed for the day so far is around 11mph,
with winds primarily out of the west-northwest. The peak gust
for the day so far is 23mph, which occurred just after 11:30am
this morning.

Cool, dry air has been the star today, giving us visibility
between 80-90 miles.

The maximum temperature so far today is 52F degrees, which is
3 degrees above the normal high of 55F. The minimum temperature
since midnight is 33F degrees, which is 5 degrees below the
normal low of 38F.

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PRELIMINARY STATS FOR OCTOBER 2025

TEMPERATURE, Deg. F
Avg. Max. 62.2 [+1.2] Avg. Min. 46.2 [+2.2] Mean      54.2 [+1.7] 24-hour corrected mean: 53.6
Max. for month: 84F on the 5th
Min. for month: 34F on the 27th

HEATING DEGREE DAYS
Total heating units:    348 [-046] Total for the season:   411 [-101] Total for last season:  373

COOLING DEGREE DAYS
Total cooling units:     20 [+013] Total for the season:   756 [+079] Total for last season:  763

PRECIPITATION, Inches
Total: 6.49 [+1.00] Greatest in 24 hrs: 2.69 on the 13th-14th

SNOWFALL, Inches
Total: 0.0 [-0.7] Greatest in 24 hrs: N/A

WIND, mph
Avg. uncorrected wind speed:  11.5 mph
Avg. corrected wind speed:    11.9 mph
Prevailing wind direction:   North-Northwest [16%] Peak gust and direction:  60 W on the 31st

SUNSHINE:
Campbell-Stokes card minutes: 11826 of a possible 19824, or 60%
Astronomical total minutes: 12323 of a possible 20520 or 60%

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Today’s Observations:

7 A.M.
Weather: Clear, few stratocumulus distant S-SSW, few cirrus
all quadrants
Temperature: 34F; Dew Point: 29F; Relative Humidity: 81%
Wind: W @ 10 kts
Sea-level pressure: 1023.5 mb; 30.22 in. Hg: rising unsteadily
Visibility: 80 miles
6-hr Max temp: 36F
6-hr Min temp: 33F
24-hr Precip: 0.00 inches
BHO SA 1155 CLR 80 235/34/29/2810/022/ FEW SC DSNT ENE-S
FEW CI ALQDS/ 8/501 52022 10036 20033

10 A.M.
Weather: Few stratocumulus distant ENE-E, few cirrus
WSW-N-ENE
Temperature: 46F; Dew Point: 30F; Relative Humidity: 53%
Wind: WNW @ 9 kts
Sea-level pressure: 1025.0 mb; 30.27 in. Hg: steady, then
rising
Visibility: 90 miles
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 90 250/46/30/2909/027/ FEW SC DSNT ENE-E
FEW CI WSW-N-ENE/ 8/501 53015

1 P.M.
Weather: Clear, few stratocumulus distant WSW-NW and NNE-ENE,
few cirrus ESE-SSW
Temperature: 51F Dew Point: 31F; Relative Humidity: 46%
Wind: WNW @ 8 kts
Sea-level pressure: 1023.7 mb; 30.23 in. Hg: falling, then
more rapidly
Visibility: 80 miles
6-hr Max temp: 52F
6-hr Min temp: 34F
6-hr Precip: 0.00 inches
BHO SA 1755 CLR 80 237/51/31/2808/023/ FEW SC DSNT WSW-NW AND
NNE-ENE FEW CI ESE-SSW/ 8/501 58013 10052 20034

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SUMMARY FOR SATURDAY, NOVEMBER 1, 2025

TEMPERATURE (DEGREES F)
MAX…….56   NORMAL…..55
MIN…….38   NORMAL…..38
MEAN……47   NORMAL…..47

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………..0
TOTAL DEPARTURE FOR THE MONTH………………………..0 [+0.0 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….18  DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH……………..0  DEPARTURE………0
TOTAL HEATING UNITS FOR THE SEASON…………..429  DEPARTURE……-101
TOTAL HEATING UNITS LAST SEASON TO DATE………375  DEPARTURE…….+54

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………763  DEPARTURE……..-7

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)………..50 W    @   12:14 A.M.
VECTOR #1 (1-Sec)……….50 W    @   12:14 A.M.
VECTOR #2 (1-Sec)……….49 W    @   12:14 A.M.
DAVIS #1……………….51 W    @   12:14 A.M.
DAVIS #2 ………………46 W    @   12:14 A.M.
RMY #1 (Instantaneous)…..50 W    @   12:14 A.M.
RMY #2 (Instantaneous)…..51 W    @   12:14 A.M.
MERLIN…………………M
RICHARDS (C5C) (Inst)……51 W    @   12:14 A.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………37 W    @   12:15 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..35 W    @   12:15 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..32 W    @   12:16 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………37 W    @   12:15 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………32 W    @   12:00 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..33 W    @   12:15 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..31 W    @   12:16 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………33 W    @   12:15 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..16.8 W  [404 total miles] VECTOR #1………………16.7
VECTOR #2………………17.5
DAVIS #1……………….17.5 WNW
DAVIS #2………………….M
RMY #1…………………15.7 WNW
RMY #2…………………17.0 WNW
RICHARDS (C5C)………….16.5

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH…………..0.00 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE YEAR (2025)…….42.31 DEPARTURE…..-2.00

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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/-3/0.00/682/97            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/+3/0.00/462/72            29 WSW VEC1 29 WSW RMY 29
10/24 58/41/50/0/0.00/403/63             20 WNW VEC1 20 WNW RMY 19
10/25 55/38/47/-2/0.00/491/77            23 NW  VEC1 23 NNW RMY 23
10/26 56/37/47/-2/0.00/635/100           23 WNW VEC1 23 WNW RMY 24
10/27 51/34/43/-6/0.00/341/54            18 NNE VEC1 19 NNW RMY 19
10/28 49/37/43/-5/T/075/12               35 NE  VEC1 35 NE  RMY 37
10/29 48/44/46/-2/0.12/000/00            32 NE  VEC1 33 NE  RMY 33
10/30 57/46/52/+4/0.79/000/00            43 E   VEC1 43 E   RMY 46
10/31 58/47/53/+6/0.05/155/25            60 W   VEC1 58 W   RMY 63
11/1  56/38/47/+0/0.00/…/..            50 W   VEC1 50 W   RMY 50

11/2 The low since midnight is 33F, the daily normal low is 38F.

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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 NOVEMBER 2
HIGH 81 IN 1950
LOW 22 IN 1965
PRECIP 1.67 INCHES IN 1970
SNOWFALL 1.8 IN 2014
PEAK GUST 63 WSW IN 1973

RECORDS FOR NOVEMBER 3
HIGH 75 IN 1990
LOW 21 IN 1891
PRECIP 1.92 INCHES IN 1951
SNOWFALL 0.1 IN 1951
PEAK GUST 96e SSE IN 1951

TODAY’S REPORT PREPARED BY: Amanda Joly