Friday, January 16, 2026

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

FRIDAY, JANUARY 16, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0710E
SUNSET:  1638E

BRIGHT SUNNY SKIES, BLUSTERY AND COLD TODAY….

With the passing of the front yesterday evening, we were
left with sharp temperature drops and continued windy
conditions. We remained dry during the evening yesterday
and throughout the day today, and today we have had mostly
clear skies and plenty of sunshine all day, with the
exception of just a few stratocumulus clouds along the
horizon.

It feels like today has been a bit of a whiplash in regard
to temperatures; this time yesterday it was 50F and now it’s
28F! This morning temperatures dipped into the teens and we
have had dew points in the single digits throughout the day.
As such, with the added wind, wind chills were in the negative
temperatures this morning but have “warmed” into the teens.

The wind has been the star today, with a blustery west-
north westerly gust this morning transitioning to a westerly
flow by the early afternoon. The average speed for the day so
far is an impressive 20mph. There have been frequent gusts
between 25-30mph, with a peak gust for the day so far of 46mph,
which occurred at 1:21pm.

Visibility has been spectacular today, with views from 60-80
miles throughout the day. Low dew points and dry air have
helped with the visibility.

The maximum temperature so far today is 28F degrees, which is
6 degrees below the normal high of 34F. The minimum temperature
since midnight is 15F degrees, which is 3 degrees below the
normal low of 18F.

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Today’s Observations:

7 A.M.
Weather: Clear, few stratocumulus all quadrants
Temperature: 15F; Dew Point: 4F; Relative Humidity: 61%
Wind: WNW @ 19G32 kts, peak wind WNW 41mph at 6:14 A.M.
Sea-level pressure: 1000.2 mb; 29.54 in. Hg: rising, then more slowly
Visibility: 60 miles
6-hr Max temp: 24F
6-hr Min temp: 15F
24-hr Precip: 0.0 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 CLR 60 002/15/4/2919G32/954/ FEW SC ALQDS PK WND 2936/14/
8/500 51031 10024 20015

10 A.M.
Weather: Clear, few stratocumulus all quadrants
Temperature: 21F; Dew Point: 4F; Relative Humidity: 46%
Wind: WNW @ 20G34 kts, peak wind WNW 44mph at 9:15 A.M.
Sea-level pressure: 1004.2 mb; 29.65 in. Hg: rising, then more slowly
Visibility: 80 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 80 042/21/4/2820G34/965/ FEW SC ALQDS PK WND 2838/15/
8/500 51040

1 P.M.
Weather: Clear, few stratocumulus S-WSW
Temperature: 28F; Dew Point: 5F; Relative Humidity: 37%
Wind: W @ 18G29 kts, peak wind WNW 43mph at 12:07 P.M.
Sea-level pressure: 1006.8 mb; 29.73 in. Hg: rising, then more rapidly
Visibility: 70 miles
6-hr Max temp: 28F
6-hr Min temp: 15F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 CLR 70 068/28/5/18G29/973/ FEW SC S-WSW PK WND 2937/07/
8/500 53026 10028 20015

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SUMMARY FOR THURSDAY, JANUARY 15, 2026

TEMPERATURE (DEGREES F)
MAX…….51   NORMAL…..34
MIN…….25   NORMAL…..18
MEAN……38   NORMAL…..26

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………+12
TOTAL DEPARTURE FOR THE MONTH………………………+64 [+4.1 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….27  DEPARTURE…….-12
TOTAL HEATING UNITS FOR THE MONTH……………502  DEPARTURE…….-65
TOTAL HEATING UNITS FOR THE SEASON………….2742  DEPARTURE…….-35
TOTAL HEATING UNITS LAST SEASON TO DATE……..2503  DEPARTURE……+239

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)………..39 SW   @   04:10 P.M.
VECTOR #1 (1-Sec)……….39 SW   @   04:10 P.M.
VECTOR #2 (1-Sec)……….38 SSW  @   04:55 P.M.
DAVIS #1……………….37 S    @   03:27 P.M.
DAVIS #2 ………………38 S    @   03:27 P.M.
RMY #1 (Instantaneous)…..38 SW   @   04:10 P.M.
RMY #2 (Instantaneous)…..41 SSW  @   04:55 P.M.
MERLIN…………………40 W
RICHARDS (C5C) (Inst)……40 SW   @   03:30 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………26 SW   @   03:28 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..26 SW   @   03:28 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..27 SSW  @   03:28 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………25 SSW  @   03:28 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………27 SW   @   04:12 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..26 SW   @   03:28 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..27 SSW  @   03:28 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………24 SW   @   03:28 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..14.2 SW  [341 total miles] VECTOR #1………………14.2
VECTOR #2………………15.1
DAVIS #1……………….14.0 SW
DAVIS #2……………….15.4 SW
RMY #1…………………13.8 SW
RMY #2…………………15.0 SSW
RICHARDS (C5C)………….13.7

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH (JAN)……..0.96 DEPARTURE…..-1.30
TOTAL PRECIPITATION FOR THE YEAR (2026)……..0.96 DEPARTURE…..-1.30

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…..-5.1
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……10.3 DEPARTURE….-13.3

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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/+12/0.00/0.0/…/..        39 SW  VEC1 39 SW  RMY 38

1/16 The low since midnight is 15F, the daily normal low is 18F.

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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 16
HIGH 63F IN 1995
LOW -12F IN 2004
PRECIP 1.32 INS. IN 1936
SNOWFALL 14.0 INS. IN 1965
PEAK GUST 79 MPH WNW IN 1960

RECORDS FOR JANUARY 17
HIGH 55F IN 1973,1995
LOW -8F IN 1907,1982
PRECIP 1.43 INS. IN 1956
SNOWFALL 13.4 INS. IN 1956
PEAK GUST 65 MPH ESE IN 2022

TODAY’S REPORT PREPARED BY: Amanda Joly