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Wednesday, January 7, 2026

January 7, 2026

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA WEDNESDAY, JANUARY 7, 2026 ALL TIMES ARE…

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

WEDNESDAY, JANUARY 7, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0713E
SUNSET:  1628E

A COLD DREARY DAY WITH FREEZING PRECIPITATION MAKING THINGS ICY….

Our latest weather system arrived last night, with light freezing
rain and sleet occurring at the onset. Temperatures warmed enough
overnight to change it over to mainly drizzle and some light rain
through early this morning. However, the wind shifted to more of
a northerly direction prior to 7am causing temperatures to slip
back below freezing. As such, freezing drizzle and freezing rain
have been the result into early this afternoon. Some snow started
mixing in around noon time as well as some colder air briefly
works in aloft.

Temperatures briefly made it to the mid 30s between 3-6am this
morning before falling back below freezing by the 7am observation.
Readings have been holding around 30F into early this afternoon.

The wind has again been on the light side today, averaging at
around 10mph for the day so far. The peak gust for the day so far
is 21mph, which occurred during the time we were on the “warmer”
side of the coastal front, just after 4:15am this morning.

Visibility has been extremely limited all day since we’ve been
in the clouds. The view has been holding at only around 1/16th
of a mile.

The maximum temperature so far today is 36F degrees, which is
1 degree above the normal high of 35F. The minimum temperature
since midnight is 30F degrees, which is 11 degrees above the
normal low of 19F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Sky obscured, vertical visibility 100ft
Temperature: 31F; Dew Point: 31F; Relative Humidity: 100%
Wind: N @ 7 kts
Sea-level pressure: 1004.5 mb; 29.66 in. Hg: falling, then more slowly
Visibility: 1/16 mile, fog
6-hr Max temp: 36F
6-hr Min temp: 31F
24-hr Precip: 0.14 inches
24-hr Snowfall: Trace
Snow Depth: 1 inch
BHO SA 1155 X W1 1/16F 045/31/31/3507/966/ R-E29/ 8//// 4/001
56011 6013/ 70014 10036 20031

10 A.M.
Weather: Sky obscured, vertical visibility 100ft, light freezing drizzle
Temperature: 30F; Dew Point: 30F; Relative Humidity: 100%
Wind: N @ 6 kts, wind light
Sea-level pressure: 1005.1 mb; 29.68 in. Hg: falling, then rising
Visibility: 1/16 mile, fog
3-hr Precip: Trace
3-hr Snowfall: 0.0 inches
BHO SA 1455 X W1 1/16ZL-F 051/30/30/3506/968/ ZL-B28 VRY LGT ICING
WND LGT/ 8//// 53006 6000/

1 P.M.
Weather: Sky obscured, vertical visibility 100ft
Temperature: 31F; Dew Point: 31F; Relative Humidity: 100%
Wind: NNW @ 7 kts
Sea-level pressure: 1004.4 mb; 29.66 in. Hg: falling, then rising
Visibility: 1/16 mile, fog
6-hr Max temp: 31F
6-hr Min temp: 30F
6-hr Precip: 0.11 inches
6-hr Snowfall: Trace
Snow Depth: 1 inch
BHO SA 1755 X W1 1/16F 044/31/31/3307/966/ ZR-S-E49
TOTAL NEW SNW PST 6 HRS TRACE/ 8//// 4/001 55007 6011/ 10031 20030

————————————————————–

SUMMARY FOR TUESDAY, JANUARY 6, 2026

TEMPERATURE (DEGREES F)
MAX…….32   NORMAL…..35
MIN…….22   NORMAL…..20
MEAN……27   NORMAL…..28

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-1
TOTAL DEPARTURE FOR THE MONTH………………………-37 [-6.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY…………….38  DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH……………258  DEPARTURE…….+36
TOTAL HEATING UNITS FOR THE SEASON………….2498  DEPARTURE…….+66
TOTAL HEATING UNITS LAST SEASON TO DATE……..2142  DEPARTURE……+356

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)………..22 ENE  @   11:56 P.M.
VECTOR #1 (1-Sec)……….21 E    @   11:10 P.M.
VECTOR #2 (1-Sec)……….23 ENE  @   11:56 P.M.
DAVIS #1……………….22 E    @   11:12 P.M.
DAVIS #2 ………………21 E    @   11:56 P.M.
RMY #1 (Instantaneous)…..23 ENE  @   11:56 P.M.
RMY #2 (Instantaneous)…..22 ENE  @   11:56 P.M.
MERLIN…………………21 E
RICHARDS (C5C) (Inst)……21 ENE  @   11:12 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………15 ENE  @   11:16 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..14 ENE  @   11:13 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16 ENE  @   11:57 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 E    @   11:13 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………16 E    @   11:57 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 ENE  @   11:13 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 ENE  @   11:13 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16 ENE  @   11:13 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………5.8 ENE [140 total miles] VECTOR #1……………….6.1
VECTOR #2……………….6.3
DAVIS #1………………..6.0 ENE
DAVIS #2………………..5.7 ENE
RMY #1………………….6.0 NE
RMY #2………………….6.3 NE
RICHARDS (C5C)…………..6.5

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.14 DEPARTURE…..-0.02
TOTAL PRECIPITATION FOR THE MONTH (JAN)……..0.36 DEPARTURE…..-0.56
TOTAL PRECIPITATION FOR THE YEAR (2026)……..0.36 DEPARTURE…..-0.56

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………TRACE DEPARTURE…..-0.5
TOTAL SNOWFALL FOR THE MONTH (JAN)…………..3.3 DEPARTURE…..+0.1
TOTAL SNOWFALL FOR THE SEASON (2025-2026)……10.2 DEPARTURE…..-8.1

————————————————————–

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/…/..         43 NW  VEC1 43 NW  RMY 42
1/2  25/12/19/-9/0.00/0.0/…/..         26 W   VEC1 26 W   RMY 27
1/3  30/14/22/-6/0.00/0.0/…/..         31 WNW VEC1 31 WNW RMY 31
1/4  30/21/26/-2/0.03/0.4/…/..         26 NNW VEC1 27 NNW RMY 28
1/5  25/11/18/-10/0.04/0.2/…/..        23 SSE VEC1 22 NW  RMY 23
1/6  32/22/27/-1/T/T/…/..              22 ENE VEC1 21 E   RMY 23

1/7  The low since midnight is 30F, 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 7
HIGH 60F IN 1930
LOW -8F IN 2018
PRECIP 1.97 INS. IN 1977
SNOWFALL 16.0 INS. IN 1977
PEAK GUST 74 MPH NW IN 1968

RECORDS FOR JANUARY 8
HIGH 65F IN 2008
LOW -8F IN 1968
PRECIP 1.70 INS. IN 1958, 1979
SNOWFALL 12.5 INS. IN 1996
PEAK GUST 77 MPH NNW IN 1958

TODAY’S REPORT PREPARED BY: Matt Douglas

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Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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