Thursday, January 22, 2026
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
THURSDAY, JANUARY 22, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0707E
SUNSET: 1646E
A MUCH WARMER DAY TODAY WITH A MIX OF CLOUDS AND SUN….
A warm front passed through the region overnight bringing a
period of snow that amounted to 0.3″ of snow, and a touch
of very light rain early this morning. Despite there being
a lot of cloud cover today with sunshine mixing in at times,
it turned into quite a mild day with temperatures getting
above normal. I hope everyone enjoyed it as a rather potent
arctic blast is heading our way by later tomorrow.
Temperatures actually rose overnight, from the mid 20s during
the mid evening hours to the upper 30s by early this morning.
Readings continued to climb to the low to mid 40s by late
this morning and through this afternoon. It’s feels rather
nice in the sun, but the wind and lowering dew points reminds
us that it’s still winter. Dew point values which started the
day in the low 30s, has been gradually falling through the
20s as the day has progressed, an indication that a colder
air mass is starting to filter into the region.
The wind has been busy all day, starting out of a southerly
direction early this morning, gradually veering to the west
by late this morning. The average speed for the day so far
is around 17mph. Gusts have been frequently exceeding 30mph
this morning, with a peak so far of 38mph which has occurred
twice, once just before 12:20pm and again just before 2pm.
Visibility has been somewhat limited to around 30-40 miles
due to haziness most of the day, but has started to improve
late this afternoon as drier air works into the region.
The maximum temperature so far today is 43F degrees, which is
9 degrees above the normal high of 34F. The minimum temperature
since midnight is 32F degrees, which is 15 degrees above the
normal low of 17F.
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Today’s Observations:
7 A.M.
Weather: Overcast stratocumulus, few lower stratocumulus all
quadrants
Temperature: 36F; Dew Point: 30F; Relative Humidity: 77%
Wind: SW @ 15G25 kts
Sea-level pressure: 1014.1 mb; 29.95 in. Hg: falling, then more slowly
Visibility: 30 miles, hazy
6-hr Max temp: 37F
6-hr Min temp: 32F
24-hr Precip: 0.03 inches
24-hr Snowfall: 0.3 inches
Snow Depth: 5 inches
BHO SA 1155 E70 OVC 30 141/36/30/2215G25/995/ FEW LWR SC ALQDS
R-E10 HAZY TOTAL NEW SNW PST 24 HRS 0.3 INS/ 8/5// 4/005 56017
6002/ 70003 10037 20032
10 A.M.
Weather: Broken cirrus, few altocumulus/castellanus distant
all quadrants
Temperature: 40F; Dew Point: 27F; Relative Humidity: 60%
Wind: W @ 14G23 kts
Sea-level pressure: 1014.7 mb; 29.96 in. Hg: rising, then more rapidly
Visibility: 40 miles, hazy
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E 250 BKN 40 147/40/27/2614G23/996/ FEW AC/ACC DSNT
ALQDS HAZY/ 8/081 53006
1 P.M.
Weather: Broken cirrus, few stratocumulus all quadrants
Temperature: 42F; Dew Point: 26F; Relative Humidity: 52%
Wind: W @ 14G20 kts
Sea-level pressure: 1012.8 mb; 29.91 in. Hg: falling, then more rapidly
Visibility: 40 miles, hazy
6-hr Max temp: 43F
6-hr Min temp: 36F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 4 inches
BHO SA 1755 E250 BKN 40 128/42/26/2614G20/991/ FEW SC ALQDS
HAZY PK WND 2633/13/ 8/502 4/004 58019 10043 20036
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SUMMARY FOR WEDNESDAY, JANUARY 21, 2026
TEMPERATURE (DEGREES F)
MAX…….33 NORMAL…..34
MIN……..7 NORMAL…..17
MEAN……20 NORMAL…..26
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-6
TOTAL DEPARTURE FOR THE MONTH………………………+59 [+2.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….45 DEPARTURE……..+6
TOTAL HEATING UNITS FOR THE MONTH……………741 DEPARTURE…….-60
TOTAL HEATING UNITS FOR THE SEASON………….2981 DEPARTURE…….-30
TOTAL HEATING UNITS LAST SEASON TO DATE……..2744 DEPARTURE……+237
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)………..33 SSW @ 11:41 P.M.
VECTOR #1 (1-Sec)……….34 SSW @ 11:27 P.M.
VECTOR #2 (1-Sec)……….34 SSW @ 11:41 P.M.
DAVIS #1……………….40 S @ 11:27 P.M.
DAVIS #2 ………………34 S @ 07:07 P.M.
RMY #1 (Instantaneous)…..36 SSW @ 11:41 P.M.
RMY #2 (Instantaneous)…..35 SSW @ 11:41 P.M.
MERLIN…………………36 SW
RICHARDS (C5C) (Inst)……33 SSW @ 11:27 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………24 SSW @ 11:34 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..24 SSW @ 11:27 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..24 SSW @ 11:23 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………25 S @ 11:27 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………27 S @ 07:09 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..24 SSW @ 11:27 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..25 SSW @ 11:23 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………24 SSW @ 11:27 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..12.6 SSW [303 total miles]
VECTOR #1………………12.7
VECTOR #2………………13.3
DAVIS #1……………….12.8 SSW
DAVIS #2……………….13.7 SW
RMY #1…………………12.6 SW
RMY #2…………………13.3 SW
RICHARDS (C5C)………….12.5
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.03 DEPARTURE…..-0.11
TOTAL PRECIPITATION FOR THE MONTH (JAN)……..1.56 DEPARTURE…..-1.55
TOTAL PRECIPITATION FOR THE YEAR (2026)……..1.56 DEPARTURE…..-1.55
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.3 DEPARTURE…..-0.3
TOTAL SNOWFALL FOR THE MONTH (JAN)………….10.3 DEPARTURE…..-1.8
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……17.2 DEPARTURE….-10.0
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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/+11/0.00/0.0/500/90 26 NW VEC1 27 WNW RMY 27
1/9 50/32/41/+14/0.06/0.0/228/41 41 SW VEC1 42 SSW RMY 44
1/10 50/36/43/+16/0.36/T/022/04 33 W VEC1 31 W RMY 31
1/11 41/30/36/+9/0.06/0.0/079/14 43 WNW VEC1 41 WNW RMY 43
1/12 37/24/31/+4/0.00/0.0/303/54 47 WNW VEC1 46 WNW RMY 47
1/13 45/28/37/+11/0.00/0.0/457/81 35 SSW VEC1 35 SSW RMY 33
1/14 49/39/44/+18/T/0.0/017/03 36 SSW VEC1 36 SSW RMY 36
1/15 51/25/38/+12/T/0.0/340/60 39 SW VEC1 39 SW RMY 38
1/16 30/15/23/-3/0.00/0.0/483/85 46 W VEC1 46 W RMY 46
1/17 38/24/31/+5/0.02/T/040/07 39 SSW VEC1 39 SSW RMY 40
1/18 33/28/31/+5/0.44/4.4/000/00 22 S VEC1 22 S RMY 21
1/19 34/22/28/+2/0.11/2.2/132/23 35 WSW VEC1 33 WSW RMY 38
1/20 24/11/18/-8/0.00/0.0/564/98 33 W VEC1 33 W RMY 34
1/21 33/7/20/-6/0.01/0.1/387/67 33 SSW VEC1 34 SSW RMY 36
1/22 The low since midnight is 32F, the daily normal low is 17F.
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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 22
HIGH 59F IN 1916
LOW -8F IN 1888,1976
PRECIP 1.24 INS. IN 1891,1987
SNOWFALL 10.0 INS. IN 2005
PEAK GUST 67 MPH W IN 1976
RECORDS FOR JANUARY 23
HIGH 62F IN 1906
LOW -10F IN 1976
PRECIP 1.69 INS. IN 1966
SNOWFALL 14.6 INS. IN 1966
PEAK GUST 85 MPH S IN 1992
TODAY’S REPORT PREPARED BY: Matt Douglas
