Sunday, January 25, 2026
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, JANUARY 25, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0704E
SUNSET: 1649E
SIGNIFICANT WINTER STORM COMMENCES….
The snow has arrived! We began the morning here under an altocumulus
overcast, cold, and with little wind. The first flakes did not begin
flying until just before 10am, as this arctic air mass is quite dry.
Since then, the snowfall intensity has ramped up, with an
accumulation thus far of 1.9″, and a liquid equivalent of 0.15″,
yielding an initial snow to liquid ratio of 13:1.
Temperatures remain on the cold side, and are only slowly climbing
through the single digits. The low was 3F, and the high so far is 8F,
though temperatures should continue to rise through the overnight.
The dew point was -9F this morning before the onset of precipitation,
rising thereafter.
Winds have remained light all day, though speeds are showing a
slowly increasing trend. The average speed so far is only 7mph,
primarily out of the north-northwest. The peak gust occurred early this
morning, with a speed of 17mph occurring late in the 1am hour.
Visibility began decent, with views to 30 miles. Once the snow began,
this quickly dropped down to 1/2 mile by the early afternoon.
The maximum temperature so far today is 8F degrees, which is
26 degrees below the normal high of 34F. The minimum temperature
since midnight is 3F degrees, which is 14 degrees below the
normal low of 17F.
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Today’s Observations:
7 A.M.
Weather: Overcast altostratus, few breaks in overcast N-E-SSW,
few stratocumulus distant N-E-S
Temperature: 4F; Dew Point: -9F; Relative Humidity: 54%
Wind: N @ 5 kts, wind light
Sea-level pressure: 1037.3 mb; 30.63 in. Hg: rising, then falling
Visibility: 30 miles
6-hr Max temp: 4F
6-hr Min temp: 3F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 3 inches
BHO SA 1155 E95 OVC 30 373/4/-9/3505/063/ FEW BINOVC DSNT N-E-SSW
FEW SC DSNT N-E-S WND LGT/ 8/52/ 4/003 50002 10004 20003
10 A.M.
Weather: Overcast nimbostratus, light snow
Temperature: 7F; Dew Point: -5F; Relative Humidity: 58%
Wind: NW @ 4 kts, wind light
Sea-level pressure: 1036.4 mb; 30.60 in. Hg: falling, then rising
Visibility: 15 miles, 30 miles SW-N-E, 5 miles E-S-SW; hazy
3-hr Precip: Trace
3-hr Snowfall: Trace
BHO SA 1455 E30 OVC 15S- 364/7/-5/3104/060/ VSBY 30 SW-N-E 5 E-S-SW
HAZY WND LGT TOTAL NEW SNW PST 3 HRS TRACE/ 8/02/ 55009 6000/
1 P.M.
Weather: Overcast stratus, moderate snow and fog
Temperature: 8F; Dew Point: 3F; Relative Humidity: 81%
Wind: N @ 9 kts
Sea-level pressure: 1030.2 mb; 30.42 in. Hg: falling unsteadily
Visibility: 1/2 mile, fog
6-hr Max temp: 8F
6-hr Min temp: 4F
6-hr Precip: 0.15 inches
6-hr Snowfall: 1.9 inches
Snow Depth: 5 inches
BHO SA 1755 E3 OVC 1/2SF 302/8/3/3609/042/ TOTAL NEW SNW PST 6 HRS 1.9 INS/
8/6// 57062 6015/ 10008 20004
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SUMMARY FOR SATURDAY, JANUARY 24, 2026
TEMPERATURE (DEGREES F)
MAX…….13 NORMAL…..34
MIN……..0 NORMAL…..17
MEAN…….7 NORMAL…..26
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………-19
TOTAL DEPARTURE FOR THE MONTH………………………+44 [+1.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….58 DEPARTURE…….+19
TOTAL HEATING UNITS FOR THE MONTH……………873 DEPARTURE…….-46
TOTAL HEATING UNITS FOR THE SEASON………….3113 DEPARTURE…….-16
TOTAL HEATING UNITS LAST SEASON TO DATE……..2883 DEPARTURE……+230
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)………..48 NW @ 12:28 A.M.
VECTOR #1 (1-Sec)……….49 WNW @ 12:10 A.M.
VECTOR #2 (1-Sec)……….54 W @ 12:26 A.M.
DAVIS #1……………….46 W @ 12:10 A.M.
DAVIS #2 ………………48 NW @ 12:26 A.M.
RMY #1 (Instantaneous)…..52 NW @ 12:28 A.M.
RMY #2 (Instantaneous)…..56 W @ 12:26 A.M.
MERLIN………………….M
RICHARDS (C5C) (Inst)……50 NW @ 12:28 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………33 W @ 12:31 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..32 NW @ 12:28 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..35 W @ 12:53 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………35 WNW @ 12:28 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………35 WNW @ 12:52 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..32 NW @ 12:28 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..34 W @ 12:53 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………33 NW @ 12:28 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..14.2 NW [341 total miles]
VECTOR #1………………14.0
VECTOR #2………………15.2
DAVIS #1……………….14.8 NW
DAVIS #2……………….14.8 NW
RMY #1…………………13.7 NW
RMY #2…………………14.6 W
RICHARDS (C5C)………….14.5
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH (JAN)……..1.56 DEPARTURE…..-1.97
TOTAL PRECIPITATION FOR THE YEAR (2026)……..1.56 DEPARTURE…..-1.97
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)………….10.3 DEPARTURE…..-3.6
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……17.2 DEPARTURE….-11.8
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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/-10/0.04/0.2/249/45 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 43/27/35/+9/0.02/0.2/…/.. 38 W VEC1 38 W RMY 42
1/23 32/10/21/-5/0.00/0.0/…/.. 46 WNW VEC1 46 WNW RMY 47
1/24 13/0/7/-19/0.00/0.0/…/.. 48 NW VEC1 49 WNW RMY 52
1/25 The low since midnight is 3F, 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 25
HIGH 56F IN 2010
LOW -9F IN 1935
PRECIP 2.24 INS. IN 1979
SNOWFALL 12.5 INS. IN 1941
PEAK GUST 81 MPH WNW IN 1972
RECORDS FOR JANUARY 26
HIGH 68F IN 1950 [RECORD HIGH TIE FOR MONTH]
LOW -5F IN 1920
PRECIP 1.60 INS. IN 1958
SNOW 9.0 INS. IN 1898
WIND 90e MPH SE IN 1978
TODAY’S REPORT PREPARED BY: Joshua Polen
