Friday, October 2, 2026

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

FRIDAY, OCTOBER 2, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0542E
SUNSET:  1724E

HAZY, WARM, AND HUMID TO START OFF THE FIRST WEEKEND OF OCTOBER….

There has been plenty of sunshine filtered through the upper level
cirrus and cirrostratus layers of clouds today. The sunshine and
high pressure have allowed temperatures to get to near-record highs;
as of 1pm today we are just 1 degree short of the 85F record set back
in 1968. Today has felt like a summer day in nearly every way; from
the warm southwest gusty winds, to the warm temperatures and overall
hazy skies.

Temperatures have been summer-like today, with readings in the low
80s by the early afternoon. The overnight low was also quite mild,
only getting “down” to 63F early this morning. Dew points have
also been quite sticky, with readings ranging from the middle to
upper 60’s throughout the day.

Winds have been steady out of the southwest for much of the day
today. By the early afternoon, winds shifted more south-southwest
and picked up in intensity as daytime heating and atmospheric
mixing occurred. The average speed for the day so far is around
14mph. The peak gust so far is 33mph, which occurred just before
12:30pm this afternoon.

Visibility has been limited to only 35 miles throughout the day
due to hazy conditions.

The maximum temperature so far today is 84F, which is 18 degrees
above the normal high of 66F. The minimum temperature since
midnight is 63F, which is 14 degrees above the normal low of 49F.

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PRELIMINARY STATS FOR SEPTEMBER 2026

TEMPERATURE, Deg. F
Avg. Max. 70.1 [-2.6] Avg. Min. 54.9 [-0.7] Mean      62.5 [-1.7] 24-hour corrected mean: 62.2
Max. for month: 84F on the 4th, 10th
Min. for month: 46F on the 24th

HEATING DEGREE DAYS
Total heating units:    118 [+018] Total for the season:   121 [+003] Total for last season:   63

COOLING DEGREE DAYS
Total cooling units:    051 [-023] Total for the season:   805 [+135] Total for last season:  736

PRECIPITATION, Inches
Total: 11.53 [+7.47] Greatest in 24 hrs: 6.53 on the 26th-27th

SNOWFALL, Inches
Total:  0.0 [ 0.0] Greatest in 24 hrs: N/A

WIND, mph
Avg. uncorrected wind speed: 10.5 mph
Avg. corrected wind speed:   11.0 mph
Prevailing wind direction:   Northeast [15%] Peak gust and direction:     58 NE on the 26th

SUNSHINE:
Campbell-Stokes card minutes: 10578 of a possible 21582, or 49%
Astronomical total minutes: 11016 of a possible 22421 or 49%

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Today’s Observations:

7 A.M.
Weather: Scattered cirrus
Temperature: 66F; Dew Point: 64F; Relative Humidity: 93%
Wind: SW @ 11 kts
Sea-level pressure: 1012.7 mb; 29.91 in. Hg: falling, then rising
Visibility: 35 miles, hazy
6-hr Max temp: 66F
6-hr Min temp: 63F
24-hr Precip: 0.00 inches
BHO SA 1155 250 SCT 35 127/66/64/2311/991/ HAZY/ 8/001 55002 10066 20063

10 A.M.
Weather: Broken cirrus/cirrostratus
Temperature: 77F; Dew Point: 67F; Relative Humidity: 70%
Wind: SW @ 10G19 kts
Sea-level pressure: 1012.1 mb; 29.89 in. Hg: steady, then falling
Visibility: 35 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 220 BKN 35 121/77/67/2210G19/989/ HAZY/ 8/001 58006

1 P.M.
Weather: Broken cirrus/cirrostratus
Temperature: 83F; Dew Point: 65F; Relative Humidity: 54%
Wind: SW @ 14G24 kts, peak wind SW 33mph at 12:36 P.M.
Sea-level pressure: 1009.8 mb; 29.82 in. Hg: falling, then more rapidly
Visibility: 35 miles, hazy
6-hr Max temp: 84F
6-hr Min temp: 66F
6-hr Precip: 0.00 inches
BHO SA 1755 220 BKN 35 098/83/65/2314G24/982/ PK WND 2329/36/
HAZY/ 8/006 58023 10084 20066

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SUMMARY FOR THURSDAY, OCTOBER 1, 2026

TEMPERATURE (DEGREES F)
MAX…….74   NORMAL…..67
MIN…….56   NORMAL…..50
MEAN……65   NORMAL…..58

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+7
TOTAL DEPARTURE FOR THE MONTH (OCT)………………….+7 [+6.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2026 THRU JUN 2027)
TOTAL HEATING UNITS FOR YESTERDAY……………..0  DEPARTURE……..-8
TOTAL HEATING UNITS FOR THE MONTH (OCT)………..0  DEPARTURE……..-8
TOTAL HEATING UNITS FOR THE SEASON…………..121  DEPARTURE……..-4
TOTAL HEATING UNITS LAST SEASON TO DATE……….73  DEPARTURE…….+48

COOLING DEGREE DAYS (SEASON: JAN 2026 THRU DEC 2026)
TOTAL COOLING UNITS FOR YESTERDAY……………..0  DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE MONTH (OCT)………..0  DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE SEASON…………..805  DEPARTURE……+134
TOTAL COOLING UNITS LAST SEASON TO DATE………736  DEPARTURE…….+69

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)………..28 SW   @   10:05 P.M.
VECTOR #1 (1-Sec)……….28 SW   @   10:05 P.M.
VECTOR #2 (1-Sec)……….27 SW   @   10:05 P.M.
DAVIS #1……………….27 SW   @   10:05 P.M.
DAVIS #2 ………………26 S    @   06:09 P.M.
RMY #1 (Instantaneous)…..27 SW   @   10:06 P.M.
RMY #2 (Instantaneous)…..28 SW   @   10:05 P.M.
MERLIN…………………25 SW
RICHARDS (C5C) (Inst)……27 SW   @   10:24 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………19 SW   @   10:06 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..19 SW   @   10:06 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..19 SW   @   10:06 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………19 SW   @   10:05 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………18 SW   @   09:50 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..19 SW   @   10:06 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..20 SW   @   10:06 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16 SW   @   10:24 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….10.2 SW [245 total miles] VECTOR #1……………..11.3
VECTOR #2……………..11.8
DAVIS #1………………10.9 SW
DAVIS #2…………………M
RMY #1………………..11.2 SW
RMY #2………………..11.8 SW
RICHARDS (C5C)…………10.6

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)……..0.00 DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE YEAR (2026)…….37.52 DEPARTURE…..-1.32

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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 The low since midnight is 63F, the daily normal low is 49F.

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OCTOBER DAILY RECORDS TO DATE

NONE.

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PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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

9/1  69/57/63/-6/0.21/008/01             15 SSW VEC1 15 E   RMY 14
9/2  76/58/67/-2/0.00/393/50             21 ESE VEC1 21 ESE RMY 20
9/3  74/60/67/-1/0.45/196/25             24 SSE VEC1 24 SSE RMY 23
9/4  84/63/74/+6/0.00/624/80             24 NNW VEC1 25 NNW RMY 24
9/5  71/60/66/-2/T/412/53                24 ENE VEC1 24 ENE RMY 25
9/6  69/53/61/-7/0.35/364/47             24 NE  VEC1 24 NNE RMY 27
9/7  79/52/66/-1/0.00/732/95             30 NW  VEC1 30 NW  RMY 30
9/8  80/58/69/+2/0.00/546/71             23 WNW VEC1 22 NNW RMY 24
9/9  80/58/69/+2/0.02/130/17             36 SSW VEC1 36 SSW RMY 36
9/10 84/67/76/+10/T/641/84               44 W   VEC1 43 W   RMY 47
9/11 77/59/68/+2/0.00/654/86             23 NW  VEC1 23 NW  RMY 25
9/12 77/55/66/0/0.00/667/88              23 SSW VEC1 23 SSW RMY 22
9/13 67/60/64/-1/0.98/000/00             25 SE  VEC1 26 SE  RMY 24
9/14 72/53/63/-2/T/572/76                32 NNW VEC1 32 NNW RMY 34
9/15 68/48/58/-7/0.00/727/97             18 S   VEC1 18 SE  RMY 18
9/16 78/53/66/+2/0.00/522/70             21 SW  VEC1 21 WSW RMY 21
9/17 82/63/73/+9/0.03/394/53             25 SW  VEC1 25 SW  RMY 27
9/18 79/58/69/+6/T/636/86                26 N   VEC1 26 NNW RMY 27
9/19 63/50/57/-6/0.00/531/72             21 N   VEC1 20 N   RMY 20
9/20 61/51/56/-7/0.11/000/00             21 SSE VEC1 22 SSE RMY 21
9/21 64/51/58/-4/0.11/542/74             24 ENE VEC1 23 ENE RMY 23
9/22 60/52/56/-6/0.00/481/66             32 ENE VEC1 32 ENE RMY 33
9/23 63/50/57/-5/0.00/566/78             39 ENE VEC1 38 ENE RMY 39
9/24 61/46/54/-7/0.00/607/84             35 NE  VEC1 33 ENE RMY 35
9/25 61/48/55/-6/0.05/000/00             46 NE  VEC1 45 NE  RMY 47
9/26 58/52/55/-5/3.35/000/00             58 NE  VEC1 58 NE  RMY 58
9/27 59/53/56/-4/5.15/000/00             52 NE  VEC1 51 NE  RMY 54
9/28 56/52/54/-5/0.66/000/00             36 NNE VEC1 35 NNE RMY 35
9/29 63/52/58/-1/0.03/007/01             20 NNW VEC1 20 NNW RMY 21
9/30 68/56/62/+3/0.03/064/09             15 WSW VEC1 15 WSW RMY 15

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SEPTEMBER DAILY RECORDS TO DATE

9/26 RECORD PEAK WIND GUST OF 58 MPH NE,
BEATING THE OLD RECORD OF 54 MPH S SET IN 1977

9/27 RECORD DAILY RAINFALL OF 5.15 INCHES,
BEATING THE OLD RECORD OF 2.26 INCHES SET IN 1962

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

RECORDS FOR OCTOBER 2
HIGH 85F IN 1968
LOW 29F IN 1899
PRECIP 1.75 INCHES IN 1984
PEAK GUST 53 MPH ENE IN 2022

RECORDS FOR OCTOBER 3
HIGH 82F IN 1922
LOW 28F IN 1899
PRECIP 1.76 INCHES IN 1979
PEAK GUST 62 MPH WNW IN 1964

TODAY’S REPORT PREPARED BY: Amanda Joly