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Thursday, June 4, 2026

June 4, 2026

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA THURSDAY, JUNE 4, 2026 ALL TIMES ARE…

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

THURSDAY, JUNE 4, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0409E
SUNSET:  1917E

SUMMER-LIKE TEMPERATURES UNDER SUNNY SKIES, BUT STILL COMFORTABLE
HUMIDITY LEVELS….

An area of high pressure centered along the spine of the
Appalachains is continuing to build eastward toward the East
Coast. Meanwhile ridging has built in aloft helping to usher
in the much warmer air mass over the region.

With the above mentioned high pressure building in, today has
been another stellar day in terms of lack of cloud cover with
plenty of sunshine being observed. Only a few thin high level
clouds have been passing overhead through the day.

Temperatures are even warmer than yesterday as the heart of the
ridge builds overhead. Readings have pushed into the mid to
upper 80s by early this afternoon. Thankfully, dew point values
are still quite comfortable in the low to mid 50s range.

Winds have been mainly on the light side again today. A westerly
flow has gradually gone around more to a southwesterly flow. The
average speed for the day so far is around 9mph. The peak gust
so far for the day is 23mph, which occurred just after midnight.

Visibility has been limited all day due to the high pollen count.
The view started at around 50 miles early this morning, but has
lowered to 35-40 miles by late this morning and early this
afternoon.

The maximum temperature so far today is 87F degrees, which is
15 degrees above the normal high of 72F. The minimum temperature
since midnight is 57F degrees, which is 3 degrees above the
normal low of 54F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few cirrus distant SE-SW
Temperature: 66F; Dew Point: 50F; Relative Humidity: 57%
Wind: W @ 7 kts
Sea-level pressure: 1021.1 mb; 30.15 in. Hg: rising, then more rapidly
Visibility: 50 miles, hazy
6-hr Max temp: 66F
6-hr Min temp: 57F
24-hr Precip: 0.00 inches
BHO SA 1155 CLR 50 211/66/50/2707/015/ FEW CI DSNT SE-SW
HAZY/ 8/001 53007 10066 20057

10 A.M.
Weather: Clear, few cirrus all quadrants
Temperature: 81F; Dew Point: 56F; Relative Humidity: 43%
Wind: SW @ 4 kts, wind light
Sea-level pressure: 1020.8 mb; 30.14 in. Hg: steady, then falling
Visibility: 40 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 CLR 40 208/81/56/2304/014/ FEW CI ALQDS WND LGT/
8/001 58003

1 P.M.
Weather: Thin scattered cirrus
Temperature: 86F; Dew Point: 54F; Relative Humidity: 33%
Wind: SW @ 6 kts, wind light and variable
Sea-level pressure: 1018.1 mb; 30.06 in. Hg: falling, then more rapidly
Visibility: 35 miles, hazy
6-hr Max temp: 87F
6-hr Min temp: 66F
6-hr Precip: 0.00 inches
BHO SA 1755 250 -SCT 35 181/86/54/2306/006/ HAZY WND L/V/
8/001 58027 10087 20066

————————————————————–

SUMMARY FOR WEDNESDAY, JUNE 3, 2026

TEMPERATURE (DEGREES F)
MAX…….82   NORMAL…..71
MIN…….56   NORMAL…..54
MEAN……69   NORMAL…..62

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+7
TOTAL DEPARTURE FOR THE MONTH……………………….-4 [-1.5 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY……………..0  DEPARTURE……..-4
TOTAL HEATING UNITS FOR THE MONTH (JUN)……….17  DEPARTURE……..+3
TOTAL HEATING UNITS FOR THE SEASON………….6084  DEPARTURE…….-74
TOTAL HEATING UNITS LAST SEASON TO DATE……..5631  DEPARTURE……+453

COOLING DEGREE DAYS (SEASON: JAN 2026 THRU DEC 2026)
TOTAL COOLING UNITS FOR YESTERDAY……………..4  DEPARTURE……..+2
TOTAL COOLING UNITS FOR THE MONTH (JUN)………..4  DEPARTURE……..-2
TOTAL COOLING UNITS FOR THE SEASON……………63  DEPARTURE…….+30
TOTAL COOLING UNITS LAST SEASON TO DATE……….17  DEPARTURE…….+46

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 S    @   07:37 P.M.*
VECTOR #1 (1-Sec)……….28 S    @   06:07 P.M.
VECTOR #2 (1-Sec)……….29 SSE  @   05:43 P.M.
DAVIS #1……………….31 S    @   07:38 P.M.
DAVIS #2 ………………33 S    @   06:12 P.M.
RMY #1 (Instantaneous)…..29 S    @   08:07 P.M.
RMY #2 (Instantaneous)…..29 SSE  @   05:43 P.M.
MERLIN…………………25 S
RICHARDS (C5C) (Inst)……28 SW   @   11:53 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………20 SSW  @   08:14 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..19 SSW  @   08:22 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..20 SSE  @   05:02 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………20 S    @   08:22 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 S    @   05:19 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..19 SSW  @   08:22 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..20 S    @   06:44 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………19 SSE  @   05:08 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………8.5 WNW [204 total miles] VECTOR #1……………….9.2
VECTOR #2……………….9.6
DAVIS #1………………..8.8 WSW
DAVIS #2………………….M
RMY #1………………….9.0 WNW
RMY #2………………….9.6 WNW
RICHARDS (C5C)…………..9.2

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH (JUN)…….TRACE DEPARTURE…..-0.47
TOTAL PRECIPITATION FOR THE YEAR (2026)…….16.80 DEPARTURE…..-6.27

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR JUNE 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

6/1  60/45/53/-9/T/…/..                26 ENE VEC1 27 ENE RMY 27
6/2  75/45/60/-2/0.00/…/..             22 NNW VEC1 22 NNW RMY 21
6/3  82/56/69/+7/0.00/…/..             28 S   VEC1 28 S   RMY 29

6/4 The low since midnight is 57F, the daily normal low is 54F.

————————————————————–

JUNE DAILY RECORDS TO DATE

NONE.

————————————————————–

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

RECORDS FOR JUNE 4
HIGH 99F IN 1919 [Record for month – Tied with 6/24/2025] LOW 41F IN 1915,1926
PRECIP 1.52 INS IN 2007
PEAK GUST 48 MPH SSE IN 1983

RECORDS FOR JUNE 5
HIGH 95F IN 1930
LOW 41F IN 1891
PRECIP 2.83 INS IN 1982
PEAK GUST 57 MPH NNW IN 1988

TODAY’S REPORT PREPARED BY: Matt Douglas

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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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