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Thursday, June 11, 2026

June 11, 2026

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA THURSDAY, JUNE 11, 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 11, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0407E
SUNSET:  1921E

MORNING SHOWERS GIVE WAY TO WARM, MUGGY AFTERNOON….

Early this morning, some light showers moved through the region,
netting Blue Hill with 0.10 inches of precipitation. This doesn’t
cover the daily normal of 0.16 inches and gives us a deficit of
-1.16″ for the month and -6.96″ for the year. With the passing
showers, the observatory was in the clouds for the first daily
observation, but as the fog moved, sunshine and heat quickly
replaced the overcast skies. The warm air mass that entered
yesterday is still over the region and the dew points and heat
can definitely be felt. Skies have stayed mostly cloudy today,
with cirrus seen in the earlier part of the day and mostly cumulus
in the afternoon.

Temperatures only made it down to 64F during the overnight hours
which is quite warmer than our normal of 56F. Even with the brief
rain in the early morning, temperatures were quick to rise. With
foggy and overcast conditions this morning we were at 68F but
quickly climbed to 88F by 1pm. Dew points yesterday were in the
mid to upper 60s and today have been in the upper 60s and lower
70s which is why it feels much more muggier than yesterday.

Winds started steady out of the southwest and started to decrease
as a shift to the west and west-southwest was observed during
the mid morning. The average so far for the day is around 8mph.
The peak gust for the day so far is only around 17mph, which
occurred just before 12:30am this morning.

Visibility was limited this morning due to fog and then later
by haziness. We started at only around 5 miles of visibility
but it did improve to around 35-40 miles by the early afternoon
hours, despite the hazy skies.

The maximum temperature so far today is 88F degrees, which is
14 degrees above the normal high of 74F. The minimum temperature
since midnight is 64F degrees, which is 8 degrees above the
normal low of 56F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Overcast stratocumulus, few breaks in overcast NE-SSE
Temperature: 68F; Dew Point: 68F; Relative Humidity: 100%
Wind: SW @ 7 kts
Sea-level pressure: 1007.9 mb; 29.76 in. Hg: rising, then more slowly
Visibility: 5 miles, fog
6-hr Max temp: 68F
6-hr Min temp: 64F
24-hr Precip: 0.10 inches
BHO SA 1155 E3 OVC 5F 079/68/68/2307/976/ FEW BINOVC NE-SSE/ 8/5//
53001 6010 70010 10068 20064

10 A.M.
Weather: Broken cirrus, few cirrus all quadrants, few altocumulus
all quadrants
Temperature: 80F; Dew Point: 72F; Relative Humidity: 78%
Wind: WSW @ 4 kts, wind light
Sea-level pressure: 1007.5 mb; 29.75 in. Hg: rising, then falling
Visibility: 35 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 E250 BKN 35 075/80/72/2504/975/ FEW CU ALQDS FEW AC ALQDS
SUN DMLY VSBL HAZY WND LGT 8/251 58004

1 P.M.
Weather: Broken cumulus
Temperature: 87F; Dew Point: 71F; Relative Humidity: 59%
Wind: W @ 7 kts
Sea-level pressure: 1006.0 mb; 29.97 in. Hg: falling, then more slowly
Visibility: 40 miles, hazy
6-hr Max temp: 88F
6-hr Min temp: 68F
6-hr Precip: 0.00 inches
BHO SA 1755 E50 BKN 40 060/87/71/2707/971/ HAZY/ 8/200 56015 10088 20068

————————————————————–

SUMMARY FOR WEDNESDAY, JUNE 10, 2026

TEMPERATURE (DEGREES F)
MAX…….88   NORMAL…..74
MIN…….59   NORMAL…..56
MEAN……74   NORMAL…..65

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….+9
TOTAL DEPARTURE FOR THE MONTH………………………+48 [+4.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2025 THRU JUN 2026)
TOTAL HEATING UNITS FOR YESTERDAY……………..0  DEPARTURE……..-3
TOTAL HEATING UNITS FOR THE MONTH (JUN)……….17  DEPARTURE…….-22
TOTAL HEATING UNITS FOR THE SEASON………….6084  DEPARTURE……-100
TOTAL HEATING UNITS LAST SEASON TO DATE……..5649  DEPARTURE……+435

COOLING DEGREE DAYS (SEASON: JAN 2026 THRU DEC 2026)
TOTAL COOLING UNITS FOR YESTERDAY……………..9  DEPARTURE……..+6
TOTAL COOLING UNITS FOR THE MONTH (JUN)……….47  DEPARTURE…….+25
TOTAL COOLING UNITS FOR THE SEASON…………..106  DEPARTURE…….+56
TOTAL COOLING UNITS LAST SEASON TO DATE……….43  DEPARTURE…….+63

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 SSW  @   03:30 P.M.
VECTOR #1 (1-Sec)……….30 SSW  @   03:30 P.M.
VECTOR #2 (1-Sec)……….29 SSW  @   03:46 P.M.
DAVIS #1……………….32 S    @   03:14 P.M.
DAVIS #2 ………………38 S    @   03:14 P.M.
RMY #1 (Instantaneous)…..30 SSW  @   03:46 P.M.
RMY #2 (Instantaneous)…..30 SSW  @   03:46 P.M.
MERLIN…………………27 S
RICHARDS (C5C) (Inst)……29 SSW  @   03:46 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………21 SSW  @   03:47 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..20 SSW  @   03:47 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22 SSW  @   03:47 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………21 S    @   03:47 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………24 S    @   03:32 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..20 SSW  @   03:47 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..23 SSW  @   03:47 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………19 SSW  @   03:31 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..12.3 WSW [295 total miles] VECTOR #1………………12.5
VECTOR #2………………13.1
DAVIS #1……………….12.2 SSW
DAVIS #2………………….M
RMY #1…………………12.4 SW
RMY #2…………………13.3 SSW
RICHARDS (C5C)………….11.7

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.10 DEPARTURE…..-0.06
TOTAL PRECIPITATION FOR THE MONTH (JUN)……..0.45 DEPARTURE…..-1.16
TOTAL PRECIPITATION FOR THE YEAR (2026)…….17.25 DEPARTURE…..-6.96

————————————————————–

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/606/67                26 ENE VEC1 27 ENE RMY 27
6/2  75/45/60/-2/0.00/680/75             22 NNW VEC1 22 NNW RMY 21
6/3  82/56/69/+7/0.00/880/97             28 S   VEC1 28 S   RMY 29
6/4  88/57/73/+10/0.00/817/90            23 WNW VEC1 23 SW  RMY 23
6/5  87/60/74/+11/0.00/810/89            20 NW  VEC1 19 NW  RMY 21
6/6  86/64/75/+12/0.09/232/31            46 WSW VEC1 45 WSW RMY 48
6/7  78/55/67/+3/0.26/…/..             38 NE  VEC1 38 NE  RMY 42
6/8  77/52/65/+1/0.00/…/..             20 SW  VEC1 20 SW  RMY 21
6/9  83/56/70/+6/0.00/…/..             28 W   VEC1 27 W   RMY 30
6/10 88/59/74/+9/0.00/…/..             30 SSW VEC1 30 SSW RMY 30

6/11 The low since midnight is 64F, the daily normal low is 56F.

————————————————————–

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 11
HIGH 92F IN 1973, 1984, 1997
LOW 40F IN 1972
PRECIP 2.66 INCHES IN 1922
PEAK GUST 43e MPH S IN 1945

RECORDS FOR JUNE 12
HIGH 94F IN 2017
LOW 40F IN 1906
PRECIP 1.79 INS 1955
PEAK GUST 58 MPH NW IN 1991

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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