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Saturday, August 8, 2026

August 8, 2026

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SATURDAY, AUGUST 8, 2026 ALL TIMES ARE…

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

SATURDAY, AUGUST 8, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0444E
SUNSET:  1855E

SECOND HEAT WAVE OF THE SEASON WITH INCREASING PM CLOUDS AND
WEST-SOUTHWESTERLY FLOW….

Today has featured plenty of warm sunshine and heat yet again, as
we officially enter our 2nd heatwave of the season. Morning skies
started with scattered cirrus then a brief clearing with a few
fair-weather cumulus by mid morning. The afternoon skies offered a
little more flavor, with increasing cumulus and cirrus with some
towering cumulus to our distant North.

Temperatures started off a little cooler than yesterday, with the
overnight low making it “down” to 70F. With the increasing clouds,
temperatures were slow to rise, but by 1pm temperatures had crested
the 90F mark. Dew points also remained high through the overnight
and into the heat of the day. Dew point values stayed in the lower
70’s throughout the day. With the combined air temperature and dew
point we have had heat indicies in the low 90s since the late morning.

Winds have been on the light to steady side, with a flow mostly out
of the west-southwest since late last night. The average for the day
so far is around 9mph. The peak gust for the day so far is 20mph,
which occurred just after 12:30pm this afternoon.

Visibility has held steady at 35 miles with no real variability
throughout the day. Hazy conditions due to the higher dew points
were a contributing factor to the limited visibility.

The maximum temperature so far today is 90F, which is 9 degrees
above the normal high of 81F. The minimum temperature since midnight
is 70F, which is 6 degrees above the normal low of 64F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Broken cirrus
Temperature: 74F; Dew Point: 70F; Relative Humidity: 88%
Wind: WSW @ 7 kts
Sea-level pressure: 1016.1 mb; 30.01 in. Hg: rising, then more rapidly
Visibility: 35 miles, hazy
6-hr Max temp: 74F
6-hr Min temp: 70F
24-hr Precip: Trace
BHO SA 1155 E250 BKN 35 161/74/70/2507/001/ HAZY/ 8/001 53007 70000
10074 20070

10 A.M.
Weather: Scattered cirrus, few cumulus SW-NW-NE
Temperature: 84F; Dew Point: 72F; Relative Humidity: 66%
Wind: WSW @ 6 kts, wind light and variable
Sea-level pressure: 1015.4 mb; 29.98 in. Hg: falling, then more slowly
Visibility: 35 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 250 SCT 35 154/84/72/2506/998/ FEW CU SW-NW-NE HAZY
WND L/V/ 8/201 56007

1 P.M.
Weather: Broken cumulus, broken altocumulus, broken cirrus, towering
cumulus distant NW-N
Temperature: 89F; Dew Point: 72F; Relative Humidity: 57%
Wind: WSW @ 9 kts
Sea-level pressure: 1014.4 mb; 29.96 in. Hg: falling, then more rapidly
Visibility: 35 miles, hazy
6-hr Max temp: 90F
6-hr Min temp: 74F
6-hr Precip: 0.00 inches
BHO SA 1755 E45 BKN 130 BKN 250 BKN 35 144/89/72/2409/996/ TCU DSNT
NW-N HAZY/ 8/251 58010 10090 20074

————————————————————–

SUMMARY FOR FRIDAY, AUGUST 7, 2026

TEMPERATURE (DEGREES F)
MAX…….92   NORMAL…..81
MIN…….73   NORMAL…..64
MEAN……83   NORMAL…..73

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………+10
TOTAL DEPARTURE FOR THE MONTH………………………+23 [+3.1 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2026 THRU JUN 2027)
TOTAL HEATING UNITS FOR YESTERDAY……………..0  DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH (AUG)………..0  DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE SEASON…………….2  DEPARTURE……..-7
TOTAL HEATING UNITS LAST SEASON TO DATE………..2  DEPARTURE………0

COOLING DEGREE DAYS (SEASON: JAN 2026 THRU DEC 2026)
TOTAL COOLING UNITS FOR YESTERDAY…………….18  DEPARTURE…….+10
TOTAL COOLING UNITS FOR THE MONTH (AUG)……….79  DEPARTURE…….+24
TOTAL COOLING UNITS FOR THE SEASON…………..576  DEPARTURE……+134
TOTAL COOLING UNITS LAST SEASON TO DATE………538  DEPARTURE…….+38

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)………..20 SW   @   09:13 P.M.
VECTOR #1 (1-Sec)……….20 SW   @   09:13 P.M.
VECTOR #2 (1-Sec)……….20 WSW  @   09:28 P.M.
DAVIS #1……………….21 SW   @   09:09 P.M.
DAVIS #2 ………………21 SW   @   09:13 P.M.
RMY #1 (Instantaneous)…..22 SW   @   09:13 P.M.
RMY #2 (Instantaneous)…..21 WSW  @   09:28 P.M.
MERLIN…………………20 SW
RICHARDS (C5C) (Inst)……21 SW   @   09:08 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………15 W    @   10:05 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..15 W    @   10:05 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15 WSW  @   09:30 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 W    @   10:05 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………15 WSW  @   09:30 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..15 W    @   10:05 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 WSW  @   09:30 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………14 W    @   10:05 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..7.9 W [190 total miles] VECTOR #1………………8.3
VECTOR #2………………8.5
DAVIS #1……………….8.3 W
DAVIS #2……………….M
RMY #1…………………8.2 W
RMY #2…………………8.4 W
RICHARDS (C5C)………….8.4

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….TRACE DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH (AUG)……..0.71 DEPARTURE…..-0.22
TOTAL PRECIPITATION FOR THE YEAR (2026)…….24.81 DEPARTURE…..-6.82

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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

8/1  87/64/76/+3/0.00/…/..             23 SSW VEC1 24 S   RMY 24
8/2  83/68/76/+3/0.01/…/..             29 S   VEC1 28 S   RMY 30
8/3  76/65/71/-2/0.70/…/..             44 SSW VEC1 44 SSW RMY 45 TSTM
8/4  85/61/73/0/0.00/…/..              18 W   VEC1 18 W   RMY 19
8/5  87/63/75/+2/0.00/…/..             21 W   VEC1 21 WSW RMY 20
8/6  91/68/80/+7/0.00/…/..             21 SW  VEC1 21 SW  RMY 22
8/7  92/73/83/+10/T/…/..               20 SW  VEC1 20 SW  RMY 21

8/8 The low since midnight is 70F, the daily normal low is 64F.

————————————————————–

AUGUST DAILY RECORDS TO DATE

NONE.

————————————————————–

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

RECORDS FOR AUGUST 8
HIGH 97F IN 2022
LOW 47F IN 1903
PRECIP 3.08 INCHES IN 1976
PEAK GUST 45 MPH WNW IN 1958

RECORDS FOR AUGUST 9
HIGH 100F IN 1949
LOW 49F IN 1899
PRE 2.65 INS IN 1976
PEAK GUST 90 MPH SW IN 1968

TODAY’S REPORT PREPARED BY: Amanda Joly

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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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