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Wednesday, October 7, 2026

October 7, 2026

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA WEDNESDAY, OCTOBER 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, OCTOBER 7, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0548E
SUNSET:  1715E

BEAUTIFUL FALL DAY WITH CRISP BLUE SKIES AND LIGHTER WIND TODAY….

Skies have remained mostly clear with the exception of a few cirrus
to points north of the Observatory today. Plenty of bright sunshine
and clear blue skies to round out today being an absolute beautiful
fall day. Temperatures have also remained seasonable, though today
has been a little warmer than yesterday. All in all though, it’s
been a perfect fall week so far.

Temperatures have been similar to yesterday, though we were a bit
quicker to warm up after the wind slowed and shifted. Dew points
have also remained low, in the mid to upper 30s, which is indicative
of the dry air mass over the region.

Winds were steady but decreasing out of the west-northwest during
the overnight hours before going calm for a couple of periods. After
that, the wind shifted more westerly before settling on a dominant
southwest flow for the late morning and early afternoon hours. Since
then, wind has been light but starting to pick up again. The average
speed for the day so far is around 8mph. The peak gust so far for
the day is 20mph, which occurred around 12:30pm this afternoon.

Visibility has been holding steady at 80 miles today. While not a
perfect visibility like yesterday, it is still quite the view, and
picturesque with the fall colors and deep blue sky.

The maximum temperature so far today is 65F, which is 1 degree
above the normal high of 64F. The minimum temperature since
midnight is 40F, which is 7 degrees below the normal low of 47F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few cirrus NW-NNW
Temperature: 45F; Dew Point: 34F; Relative Humidity: 63%
Wind: WNW @ 5 kts, wind light
Sea-level pressure: 1019.0 mb; 30.09 in. Hg: rising, then steady
Visibility: 80 miles
6-hr Max temp: 45F
6-hr Min temp: 40F
24-hr Precip: 0.00 inches
BHO SA 1155 CLR 80 190/45/34/2805/009/ FEW CI NW-NNW WND LGT/ 8/001
51007 10045 20040

10 A.M.
Weather: Clear, few cirrus NW-NE
Temperature: 57F; Dew Point: 34F; Relative Humidity: 42%
Wind: SW @ 8 kts
Sea-level pressure: 1018.1 mb; 30.06 in. Hg: rising, then falling
Visibility: 80 miles
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 80 181/57/34/2108/006/ FEW CI NW-NE/ 8/001 58009

1 P.M.
Weather: Clear, few cirrus WNW-NE
Temperature: 64F; Dew Point: 37F; Relative Humidity: 36%
Wind: SW @ 8 kts
Sea-level pressure: 1015.2 mb; 29.98 in. Hg: falling, then more rapidly
Visibility: 80 miles
6-hr Max temp: 65F
6-hr Min temp: 45F
6-hr Precip: 0.00 inches
BHO SA 1755 CLR 80 152/64/37/2108/998/ FEW CI WNW-NE/ 8/001 58029
10065 20045

————————————————————–

SUMMARY FOR TUESDAY, OCTOBER 6, 2026

TEMPERATURE (DEGREES F)
MAX…….60   NORMAL…..65
MIN…….41   NORMAL…..48
MEAN……51   NORMAL…..56

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-5
TOTAL DEPARTURE FOR THE MONTH (OCT)…………………+21 [+3.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2026 THRU JUN 2027)
TOTAL HEATING UNITS FOR YESTERDAY…………….14  DEPARTURE……..+5
TOTAL HEATING UNITS FOR THE MONTH (OCT)……….35  DEPARTURE…….-15
TOTAL HEATING UNITS FOR THE SEASON…………..156  DEPARTURE…….-12
TOTAL HEATING UNITS LAST SEASON TO DATE……….92  DEPARTURE…….+64

COOLING DEGREE DAYS (SEASON: JAN 2026 THRU DEC 2026)
TOTAL COOLING UNITS FOR YESTERDAY……………..0  DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH (OCT)………..9  DEPARTURE……..+6
TOTAL COOLING UNITS FOR THE SEASON…………..814  DEPARTURE……+140
TOTAL COOLING UNITS LAST SEASON TO DATE………752  DEPARTURE…….+62

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)………..30 WNW  @   09:08 A.M.
VECTOR #1 (1-Sec)……….30 WNW  @   09:08 A.M.
VECTOR #2 (1-Sec)……….32 WNW  @   09:20 A.M.
DAVIS #1……………….31 WNW  @   10:03 A.M.
DAVIS #2 ………………28 WNW  @   10:03 A.M.
RMY #1 (Instantaneous)…..31 WNW  @   07:00 A.M.
RMY #2 (Instantaneous)…..32 WNW  @   09:11 A.M.
MERLIN…………………31 NW
RICHARDS (C5C) (Inst)……30 NW   @   09:17 A.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………22 NW   @   09:17 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..20 NW   @   09:17 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22 WNW  @   11:45 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………20 WNW  @   08:58 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………19 WNW  @   11:45 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..20 NW   @   09:17 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 WNW  @   11:45 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………20 NW   @   09:17 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….12.6 WNW [303 total miles] VECTOR #1……………..13.0
VECTOR #2……………..14.6
DAVIS #1………………13.5 WNW
DAVIS #2…………………M
RMY #1………………..12.8 WNW
RMY #2………………..14.1 WNW
RICHARDS (C5C)…………13.2

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE MONTH (OCT)……..0.05 DEPARTURE…..-0.94
TOTAL PRECIPITATION FOR THE YEAR (2026)…….37.57 DEPARTURE…..-2.09

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/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

10/1  74/56/65/+7/0.00/…/..             28 SW  VEC1 28 SW  RMY 27
10/2  84/63/74/+16/0.05/…/..            33 SW  VEC1 33 SW  RMY 32
10/3  68/51/60/+3/0.00/…/..             24 NNW VEC1 24 NNE RMY 24
10/4  63/49/56/-1/T/…/..                24 ESE VEC1 23 ESE RMY 22
10/5  69/46/58/+1/0.00/…/..             43 WNW VEC1 42 WNW RMY 43
10/6  60/41/51/-5/0.00/…/..             30 WNW VEC1 30 WNW RMY 31

10/7 The low since midnight is 40F, the daily normal low is 47F.

————————————————————–

OCTOBER DAILY RECORDS TO DATE

NONE.

————————————————————–

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

RECORDS FOR OCTOBER 7
HIGH 88F IN 1963 (RECORD FOR MONTH)
LOW 30F IN 1904,1986
PRECIP 1.75 INCHES IN 1972
PEAK GUST 76 W IN 2020

RECORDS FOR OCTOBER 8
HIGH 81F IN 1916,1990
LOW 28F IN 1919
PRECIP 2.22 INCHES IN 1891
SNOWFALL TRACE IN 1988, 2001 (EARLIEST DATE)
PEAK GUST 60 MPH NE IN 1996

TODAY’S REPORT PREPARED BY: Amanda Joly

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Blue Hill Observatory & Science Center · Legal

Data Use & Privacy Policy

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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