Thursday, November 6, 2025

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

THURSDAY, NOVEMBER 6, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0624E
SUNSET:  1631E

FIRST FROZEN PRECIP OF THE SEASON TODAY! ANOTHER BREEZY
AND CHILLY DAY ON THE TOP OF GREAT BLUE HILL….

This morning we started the day with a beautiful sunrise
and mostly clear skies. By the late morning we had
increasing clouds and virga in the distant west. The system
quickly moved through our area around 11am and brought our
first frozen precipitation for the season in the form of
sleet! Even though our temperatures were above freezing,
the air above was much colder, allowing for this to occur.

Temperatures have held pretty steady in the mid to upper
40’s for much of the day, mostly in part to the increasing
cloud cover. Our high of 50F occurred at midnight. This is
slightly below average for this time of year. The dew point
has remained in the lower 30’s, really bringing a chill to
the air as cold air advection continues to have a hold over
the region.

The wind has been active for yet another day. This month so
far we have averaged around 16mph each day which is quite a
gusty start to November. Today has featured a quite strong
west-northwest wind for much of the day. Winds were highest
in the early morning hours and have decreased slightly since,
though it hasn’t felt like it. We have had frequent gusts in
the 25-30 mph range during the late morning hours. The average
so far today is holding around 18mph. The peak gust so far for
the day is 47mph, which occurred just after 2:30am this morning.

Visibility has been around 70 miles for much of the day.
During the early afternoon when the precipitation moved through
we were at arouund 50 miles.

The maximum temperature so far today is 50F degrees, which is
4 degrees below the normal high of 54F. The minimum temperature
since midnight is 40F degrees, which is 3 degrees above the
normal low of 37F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few altocumulus distant all quadrants
Temperature: 40F; Dew Point: 33F; Relative Humidity: 75%
Wind: WNW @ 14G25 kts, peak wind WNW 36mph at 6:00 A.M.
Sea-level pressure: 1008.5 mb; 29.78 in. Hg: rising, then
more slowly
Visibility: 70 miles
6-hr Max temp: 49F
6-hr Min temp: 40F
24-hr Precip: 0.07 inches
BHO SA 1155 CLR 70 085/40/33/3014G25/978/ FEW AC DSNT ALQDS
PK WND 3031/00/ 8/050 51052 6001/ 70007 10049 20040

10 A.M.
Weather: Broken stratocumulus, virga WSW-NW and NNE
Temperature: 47F; Dew Point: 32F; Relative Humidity: 55%
Wind: NW @ 17G29 kts, peak wind WNW 35mph at 9:31 A.M.
Sea-level pressure: 1011.2 mb; 29.86 in. Hg: rising, then
more slowly
Visibility: 70 miles
3-hr Precip: 0.00 inches
BHO SA 1455 40 BKN 70 112/47/32/3117G29/986/ VIRGA WSW-NW
AND NNE PK WND 2930/31/ 8/500 51027

1 P.M.
Weather: Broken stratocumulus, virga NE and E-ESE
Temperature: 45F Dew Point: 31F; Relative Humidity: 57%
Wind: NW @ 14G30 kts, peak wind NW 35mph at 12:54 P.M.
Sea-level pressure: 1012.8 mb; 29.91 in. Hg: rising unsteadily
Visibility: 70 miles
6-hr Max temp: 49F
6-hr Min temp: 40F
6-hr Precip: 0.01 inches
BHO SA 1755 E80 BKN 70 128/45/31/3114G30/991/ VIRGA NE AND E-ESE
IP-E04 RW-E07 PK WND 3130/54/ 8/5// 52016 6001/ 10049 20040

————————————————————–

SUMMARY FOR WEDNESDAY, NOVEMBER 5, 2025

TEMPERATURE (DEGREES F)
MAX…….56   NORMAL…..54
MIN…….39   NORMAL…..37
MEAN……48   NORMAL…..46

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+2
TOTAL DEPARTURE FOR THE MONTH……………………….+2 [-0.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….17  DEPARTURE……..-3
TOTAL HEATING UNITS FOR THE MONTH…………….91  DEPARTURE……..-3
TOTAL HEATING UNITS FOR THE SEASON…………..502  DEPARTURE……-104
TOTAL HEATING UNITS LAST SEASON TO DATE………449  DEPARTURE…….+53

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    @   11:52 P.M.
VECTOR #1 (1-Sec)……….47 W    @   11:51 P.M.
VECTOR #2 (1-Sec)……….50 WSW  @   10:32 P.M.
DAVIS #1……………….48 W    @   11:52 P.M.
DAVIS #2 ………………45 WSW  @   10:32 P.M.
RMY #1 (Instantaneous)…..52 W    @   11:52 P.M.
RMY #2 (Instantaneous)…..52 WSW  @   10:32 P.M.
MERLIN…………………45 NW
RICHARDS (C5C) (Inst)……48 W    @   11:51 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………36 WSW  @   10:35 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..30 W    @   11:52 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..30 WSW  @   10:35 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………34 W    @   11:53 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………31 W    @   10:35 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..29 W    @   11:52 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..29 WSW  @   10:35 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………29 W    @   11:52 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..14.3 WSW [343 total miles] VECTOR #1………………14.5
VECTOR #2………………14.9
DAVIS #1……………….14.6 SW
DAVIS #2………………….M
RMY #1…………………14.0 SW
RMY #2…………………14.8 SW
RICHARDS (C5C)………….13.9

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.07 DEPARTURE…..-0.07
TOTAL PRECIPITATION FOR THE MONTH…………..0.23 DEPARTURE…..-0.51
TOTAL PRECIPITATION FOR THE YEAR (2025)…….42.54 DEPARTURE…..-2.36

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……0.0
TOTAL SNOWFALL FOR THE MONTH………………..0.0 DEPARTURE…..-0.2
TOTAL SNOWFALL FOR THE SEASON (2025-2026)…….0.0 DEPARTURE…..-0.9

————————————————————–

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/…/..        50 W   VEC1 50 W   RMY 50
11/2  53/33/43/-4/0.00/0.0/…/..        23 WNW VEC1 23 WNW RMY 24
11/3  54/42/48/+2/0.16/0.0/…/..        41 WNW VEC1 41 W   RMY 46
11/4  54/42/48/+2/0.00/0.0/…/..        52 NW  VEC1 52 NW  RMY 54
11/5  56/39/48/+2/0.06/0.0/…/..        50 W   VEC1 47 W   RMY 52

11/6 The low since midnight is 40F, the daily normal low is 37F.

————————————————————–

NOVEMBER DAILY RECORDS TO DATE

NONE.

————————————————————–

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)

RECORDS FOR NOVEMBER 6
HIGH 80 IN 2024
LOW 22 IN 1951
PRECIP 1.72 INCHES IN 1907
SNOWFALL 6.0 IN 1894
PEAK GUST 63 W IN 1973

RECORDS FOR NOVEMBER 7
HIGH 75 IN 1938, 2020
LOW 21 IN 1894, 1930
PRECIP 2.02 INCHES IN 1953
SNOWFALL 3.5 IN 2012
PEAK GUST 69e ENE IN 1953

TODAY’S REPORT PREPARED BY: Amanda Joly