Saturday, January 10, 2026
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SATURDAY, JANUARY 10, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0713E
SUNSET: 1631E
INCREASING CLOUDS TODAY WITH LIGHT WIND AND MILD TEMPERATURES….
Clouds have been quickly advancing into the area today with only
a few glimpses of sunshine early this morning. Despite the cloud
cover, it’s not a bad day out there with a light wind and mild
temperatures. It’s a decent day to be out and about.
Temperatures continue to run well above normal, with the morning
low in the mid 30s and readings reaching the mid 40s by early this
afternoon. Although the high for the day occurred at midnight
with a value of 50F degrees! For reference, the normal high and
low for today are 35F and 19F respectively. Dew point values have
been generally in the mid 30s throughout the day.
Winds were gusty overnight, but gradually diminished after 5am
this morning. The average speed for the day so far is around 12mph,
but it’s been closer to 5mph over the past couple of hours, and
even lower than that in the last hour. The peak gust for the day
so far is 33mph, which occurred just after 2:10am this morning.
Visibility has been excellent today, ranging between 60-80 miles
through the day.
The maximum temperature so far today is 50F degrees, which is
15 degrees above the normal high of 35F. The minimum temperature
since midnight is 36F degrees, which is 17 degrees above the
normal low of 19F.
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Today’s Observations:
7 A.M.
Weather: Broken cirrus
Temperature: 37F; Dew Point: 33F; Relative Humidity: 84%
Wind: NW @ 11 kts
Sea-level pressure: 1022.0 mb; 30.18 in. Hg: rising, then more slowly
Visibility: 60 miles
6-hr Max temp: 49F
6-hr Min temp: 36F
24-hr Precip: 0.06 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 E250 BKN 60 220/37/33/3211/018/ 8/001 51027 70006
10049 20036
10 A.M.
Weather: Overcast cirrostratus, sun dimly visible
Temperature: 40F; Dew Point: 34F; Relative Humidity: 78%
Wind: NW @ 8 kts
Sea-level pressure: 1023.8 mb; 30.23 in. Hg: rising, then more slowly
Visibility: 80 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E220 OVC 80 238/40/34/3208/023/ SUN DMLY VSBL/
8/007 51018
1 P.M.
Weather: Broken altocumulus/altostratus, overcast cirrostratus
Temperature: 43F; Dew Point: 31F; Relative Humidity: 62%
Wind: NNW @ 3 kts, wind light
Sea-level pressure: 1021.7 mb; 30.17 in. Hg: falling, then more slowly
Visibility: 80 miles
6-hr Max temp: 43F
6-hr Min temp: 37F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E130 BKN 200 OVC 80 217/43/31/3403/017/ WND LGT/
8/077 56021 10043 20037
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SUMMARY FOR FRIDAY, JANUARY 9, 2026
TEMPERATURE (DEGREES F)
MAX…….50 NORMAL…..35
MIN…….32 NORMAL…..19
MEAN……41 NORMAL…..27
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………+14
TOTAL DEPARTURE FOR THE MONTH……………………….-6 [-0.9 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….24 DEPARTURE…….-14
TOTAL HEATING UNITS FOR THE MONTH……………341 DEPARTURE……..+5
TOTAL HEATING UNITS FOR THE SEASON………….2581 DEPARTURE…….+36
TOTAL HEATING UNITS LAST SEASON TO DATE……..2279 DEPARTURE……+302
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)………..41 SW @ 10:54 P.M.
VECTOR #1 (1-Sec)……….42 SSW @ 04:33 P.M.
VECTOR #2 (1-Sec)……….43 SSW @ 10:53 P.M.
DAVIS #1……………….43 S @ 05:07 P.M.
DAVIS #2 ………………46 S @ 02:06 P.M.
RMY #1 (Instantaneous)…..44 SSW @ 04:33 P.M.
RMY #2 (Instantaneous)…..44 WSW @ 10:54 P.M.
MERLIN…………………41 SW
RICHARDS (C5C) (Inst)……46 SW @ 10:54 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………32 SSW @ 08:03 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..29 SSW @ 08:03 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..31 SW @ 10:55 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………30 S @ 04:52 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………33 S @ 04:52 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..29 SSW @ 08:12 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..30 S @ 04:52 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………28 SSW @ 08:12 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..15.5 SSW [371 total miles]
VECTOR #1………………15.6
VECTOR #2………………16.1
DAVIS #1……………….15.5 SSW
DAVIS #2……………….16.5 SSW
RMY #1…………………15.3 SSW
RMY #2…………………16.2 S
RICHARDS (C5C)………….15.1
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.06 DEPARTURE…..-0.09
TOTAL PRECIPITATION FOR THE MONTH (JAN)……..0.54 DEPARTURE…..-0.82
TOTAL PRECIPITATION FOR THE YEAR (2026)……..0.54 DEPARTURE…..-0.82
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE…..-0.6
TOTAL SNOWFALL FOR THE MONTH (JAN)…………..3.4 DEPARTURE…..-1.5
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……10.3 DEPARTURE…..-9.7
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PRELIMINARY CLIMATE SUMMARY FOR JANUARY 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
1/1 29/11/20/-9/0.15/2.7/264/48 43 NW VEC1 43 NW RMY 42
1/2 25/12/19/-9/0.00/0.0/397/72 26 W VEC1 26 W RMY 27
1/3 30/14/22/-6/0.00/0.0/342/62 31 WNW VEC1 31 WNW RMY 31
1/4 30/21/26/-2/0.03/0.4/171/31 26 NNW VEC1 27 NNW RMY 28
1/5 25/11/18/-10/0.04/0.2/249/00 23 SSE VEC1 22 NW RMY 23
1/6 32/22/27/-1/0.01/T/000/00 22 ENE VEC1 21 E RMY 23
1/7 36/30/33/+6/0.25/0.1/000/00 23 NW VEC1 21 ENE RMY 24
1/8 45/30/38/+11/0.00/0.0/…/.. 26 NW VEC1 27 WNW RMY 27
1/9 50/32/41/+14/0.06/0.0/…/.. 41 SW VEC1 42 SSW RMY 44
1/10 The low since midnight is 36F, the daily normal low is 19F.
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JANUARY 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 JANUARY 10
HIGH 58F IN 2016
LOW -7F IN 2004
PRECIP 2.74 INS. IN 1935
SNOWFALL 8.0 INS. IN 1896
PEAK GUST 73e SE IN 1977
RECORDS FOR JANUARY 11
HIGH 65F IN 2020
LOW -7F IN 1968
PRECIP 1.58 INS. IN 2008
SNOW 10.2 INS. 1927
PEAK GUST 95e MPH S IN 1980
TODAY’S REPORT PREPARED BY: Matt Douglas
