Monday, January 12, 2026

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

MONDAY, JANUARY 12, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0712E
SUNSET:  1634E

A MIX OF CLOUDS AND SUN WITH COLDER TEMPERATURES TODAY….

A cold front pushed through last evening with strong cold air
advection taking place behind it. Winds became quite gusty as the
colder air funnelled into the region. While some snow showers and
squalls occurred in areas to our west, none reached the local
area, as such no precipitation was observed with the front.

Today has been dry with sunshine early this morning being
overtaken by cloudiness by early this afternoon. All in all
we’ll call it a mix of clouds and sun.

Temperatures have returned to more January-like levels today.
Readings dropped to the mid 20s early this morning, but have been
somewhat slow to recover, with readings reaching the low to mid
30s by early this afternoon. Dew point values have been holding
in the mid to upper teens through the day.

The wind has been fairly busy today out of the west. The average
speed for the day so far is around 18mph. Gusts are frequently
reaching 20-25mph today adding a decided chill to the air. The
peak gust for the day is 47mph, which occurred just before
12:30am this morning.

Visibility has been excellent today, starting the day around
50 miles, then improving to around 70 miles by the mid morning
hours.

The maximum temperature so far today is 33F degrees, which is
2 degrees below the normal high of 35F. The minimum temperature
since midnight is 24F degrees, which is 5 degrees above the
normal low of 19F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Thin scattered cirrus, few stratocumulus distant NE-S
Temperature: 25F; Dew Point: 13F; Relative Humidity: 60%
Wind: W @ 15G24 kts
Sea-level pressure: 1015.4 mb; 29.99 in. Hg: rising, then more slowly
Visibility: 50 miles
6-hr Max temp: 29F
6-hr Min temp: 24F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 250 -SCT 50 154/25/13/2815G24/999/ FEW SC DSNT NE-S/
8/501 51039 10029 20024

10 A.M.
Weather: Broken altocumulus/altostratus, broken cirrostratus,
broken cirrus, few stratocumulus distant SW-NW-NNE and distant ENE-ESE
Temperature: 29F; Dew Point: 15F; Relative Humidity: 56%
Wind: W @ 11G17 kts
Sea-level pressure: 1018.4 mb; 30.07 in. Hg: rising, then more slowly
Visibility: 70 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E120 BKN 180 BKN 250 BKN 70 184/29/15/2811G17/007/
FEW SC DSNT SW-NW-NNE AND DSNT ENE-ESE/ 8/576 51030

1 P.M.
Weather: Broken altocumulus/altostratus, broken cirrus,
few stratocumulus all quadrants
Temperature: 33F; Dew Point: 19F; Relative Humidity: 56%
Wind: W @ 13G20 kts, peak wind W 32mph at 12:14 P.M.
Sea-level pressure: 1017.0 mb; 30.03 in. Hg: falling, then more slowly
Visibility: 70 miles
6-hr Max temp: 33F
6-hr Min temp: 25F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E150 BKN 250 BKN 70 170/33/19/2813G20/003/ FEW SC ALQDS
PK WND 2828/14/ 8/571 56014 10033 20025

————————————————————–

SUMMARY FOR SUNDAY, JANUARY 11, 2026

TEMPERATURE (DEGREES F)
MAX…….41   NORMAL…..35
MIN…….30   NORMAL…..19
MEAN……36   NORMAL…..27

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+9
TOTAL DEPARTURE FOR THE MONTH………………………+19 [+1.5 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….29  DEPARTURE……..-9
TOTAL HEATING UNITS FOR THE MONTH……………392  DEPARTURE…….-20
TOTAL HEATING UNITS FOR THE SEASON………….2632  DEPARTURE…….+10
TOTAL HEATING UNITS LAST SEASON TO DATE……..2353  DEPARTURE……+279

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)………..43 WNW  @   11:45 P.M.
VECTOR #1 (1-Sec)……….41 WNW  @   11:44 P.M.
VECTOR #2 (1-Sec)……….45 WNW  @   08:42 P.M.
DAVIS #1……………….42 W    @   11:45 P.M.
DAVIS #2 ………………41 WNW  @   08:42 P.M.
RMY #1 (Instantaneous)…..43 WNW  @   11:45 P.M.
RMY #2 (Instantaneous)…..44 W    @   11:47 P.M.
MERLIN………………….M
RICHARDS (C5C) (Inst)……41 WNW  @   11:45 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………35 WNW  @   11:46 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..29 WNW  @   11:47 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..32 W    @   11:47 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………31 W    @   11:47 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………32 WNW  @   11:47 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..27 WNW  @   11:47 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..31 W    @   11:47 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………28 WNW  @   11:47 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..11.7 WNW [281 total miles] VECTOR #1………………11.6
VECTOR #2………………12.5
DAVIS #1……………….12.0 NW
DAVIS #2……………….12.1 NW
RMY #1…………………11.3 NW
RMY #2…………………12.1 NW
RICHARDS (C5C)………….12.0

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…..-0.70
TOTAL PRECIPITATION FOR THE YEAR (2026)……..0.96 DEPARTURE…..-0.70

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…..-2.7
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……10.3 DEPARTURE….-10.9

————————————————————–

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 50/36/43/+16/0.36/T/…/..          33 W   VEC1 31 W   RMY 31
1/11 41/30/36/+9/0.06/0.0/…/..         43 WNW VEC1 41 WNW RMY 43

1/12 The low since midnight is 24F, the daily normal low is 19F.

————————————————————–

JANUARY DAILY RECORDS TO DATE

NONE.

————————————————————–

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

RECORDS FOR JANUARY 12
HIGH 68F IN 2020 [RECORD HIGH TIE FOR MONTH] LOW -15F IN 1886
PRECIP 2.04 INS. IN 2011
SNOW 18.2 INS. IN 2011
WIND 84e MPH S IN 1980

RECORDS FOR JANUARY 13
HIGH 60F IN 2018
LOW -11F IN 1912
PRECIP 1.72 INS. IN 2024
SNOWFALL 12.6 INS. IN 1964
PEAK GUST 74 MPH NE IN 1964

TODAY’S REPORT PREPARED BY: Matt Douglas