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Saturday, October 10, 2026

October 10, 2026

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

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

SATURDAY, OCTOBER 10, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0551E
SUNSET:  1710E

INCREASING HIGH CLOUDS, BUT STILL A PLEASANT DAY WITH NEAR
SEASONABLE TEMPERATURES AND LIGHT WIND….

Today has featured plenty of filtered sunshine as some high thin
cirrus clouds stream into the region from the remnants of
hurricane Isaias.

Temperatures are near seasonal levels today with readings
reaching the low 60s early this afternoon. The air is even
drier today than yesterday as the dew point has now dipped into
the mid 30s. This is adding a decisive chill to the air today
making it feel cooler than it really is.

Winds were strongest during the wee hours of the day, but have
been decreasing as high pressure builds over the region. The
average speed for the day so far is 10mph, mainly out of a
north-northwesterly direction. The peak gust for the day so far
is 22mph, which occurred just before 3am this morning.

Visibility has been excellent all day with a perfect view of
around 90 miles this morning, but scaling back to around 80
miles early this afternoon.

The maximum temperature so far today is 61F, which is 2 degrees
below the normal high of 63F. The minimum temperature since
midnight is 44F, which is 2 degrees below the normal low of 46F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Thin broken cirrus
Temperature: 48F; Dew Point: 41F; Relative Humidity: 77%
Wind: NNW @ 7 kts
Sea-level pressure: 1030.1 mb; 30.42 in. Hg: rising, then more rapidly
Visibility: 90 miles
6-hr Max temp: 50F
6-hr Min temp: 44F
24-hr Precip: 0.00 inches
BHO SA 1155 E250 -BKN 90 301/48/41/3407/042/ 8/001 53031 10050 20044

10 A.M.
Weather: Thin broken cirrus
Temperature: 57F; Dew Point: 39F; Relative Humidity: 51%
Wind: NNW @ 6 kts, wind light and variable
Sea-level pressure: 1032.2 mb; 30.48 in. Hg: rising, then more slowly
Visibility: 90 miles
3-hr Precip: 0.00 inches
BHO SA 1455 E250 -BKN 90 322/57/39/3306/048/ WND L/V/ 8/001 51021

1 P.M.
Weather: Broken cirrus
Temperature: 59F; Dew Point: 37F; Relative Humidity: 44%
Wind: NW @ 7G15 kts
Sea-level pressure: 1031.8 mb; 30.47 in. Hg: rising, then falling
Visibility: 80 miles
6-hr Max temp: 61F
6-hr Min temp: 48F
6-hr Precip: 0.00 inches
BHO SA 1755 E250 BKN 80 318/59/37/3207G15/047/ 8/001 58004 10061 20048

————————————————————–

SUMMARY FOR FRIDAY, OCTOBER 9, 2026

TEMPERATURE (DEGREES F)
MAX…….66   NORMAL…..64
MIN…….47   NORMAL…..47
MEAN……57   NORMAL…..55

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+2
TOTAL DEPARTURE FOR THE MONTH (OCT)…………………+27 [+2.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2026 THRU JUN 2027)
TOTAL HEATING UNITS FOR YESTERDAY……………..8  DEPARTURE……..-2
TOTAL HEATING UNITS FOR THE MONTH (OCT)……….58  DEPARTURE…….-22
TOTAL HEATING UNITS FOR THE SEASON…………..179  DEPARTURE…….-19
TOTAL HEATING UNITS LAST SEASON TO DATE………115  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……..+5
TOTAL COOLING UNITS FOR THE SEASON…………..814  DEPARTURE……+139
TOTAL COOLING UNITS LAST SEASON TO DATE………756  DEPARTURE…….+58

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)………..40 WNW  @   11:18 A.M.*
VECTOR #1 (1-Sec)……….39 WNW  @   11:08 A.M.
VECTOR #2 (1-Sec)……….40 W    @   11:18 A.M.
DAVIS #1……………….40 WNW  @   11:08 A.M.
DAVIS #2 ………………36 WNW  @   11:18 A.M.
RMY #1 (Instantaneous)…..40 WNW  @   11:08 A.M.
RMY #2 (Instantaneous)…..40 WNW  @   11:18 A.M.
MERLIN…………………39 NW
RICHARDS (C5C) (Inst)……39 WNW  @   11:18 A.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………26 WNW  @   11:55 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..26 WNW  @   11:54 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..29 WNW  @   11:19 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………28 W    @   11:20 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………30 WNW  @   11:19 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..26 WNW  @   11:54 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..28 WNW  @   11:19 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………26 WNW  @   11:54 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….15.7 W [377 total miles] VECTOR #1……………..15.3
VECTOR #2……………..16.0
DAVIS #1………………16.0 W
DAVIS #2…………………M
RMY #1………………..14.9 W
RMY #2………………..15.6 W
RICHARDS (C5C)…………15.0

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.18
TOTAL PRECIPITATION FOR THE MONTH (OCT)……..0.05 DEPARTURE…..-1.46
TOTAL PRECIPITATION FOR THE YEAR (2026)…….37.57 DEPARTURE…..-2.61

————————————————————–

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/+7/0.00/084/12             28 SW  VEC1 28 SW  RMY 27
10/2  84/63/74/+16/0.05/518/74            33 SW  VEC1 33 SW  RMY 32
10/3  68/51/60/+3/0.00/684/98             24 NNW VEC1 24 NNE RMY 24
10/4  63/49/56/-1/T/320/46                24 ESE VEC1 23 ESE RMY 22
10/5  69/46/58/+1/0.00/581/84             43 WNW VEC1 42 WNW RMY 43
10/6  60/41/51/-5/0.00/676/98             30 WNW VEC1 30 WNW RMY 31
10/7  65/40/53/-3/0.00/660/96             31 S   VEC1 31 S   RMY 31
10/8  70/53/62/+7/0.00/506/74             33 WNW VEC1 33 SSW RMY 34
10/9  66/47/57/+2/0.00/…/..             40 WNW VEC1 39 WNW RMY 40

10/10 The low since midnight is 44F, the daily normal low is 46F.

————————————————————–

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 10
HIGH 85F IN 1949
LOW 27F IN 1929
PRECIP 2.02 INCHES IN 1998
SNOWFALL 6.8 INCHES IN 1979 (RECORD FOR MONTH)
PEAK GUST 59 MPH WNW IN 1958

RECORDS FOR OCTOBER 11
HIGH 80F IN 1919,1949
LOW 28F IN 1993
PRECIP 1.36 INCHES IN 2019
SNOWFALL (NONE)
PEAK GUST 66e MPH WNW IN 1941

TODAY’S REPORT PREPARED BY: Matt Douglas

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

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Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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