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Friday, June 12, 2026

June 12, 2026

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA FRIDAY, JUNE 12, 2026 ALL TIMES ARE…

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

FRIDAY, JUNE 12, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0407E
SUNSET:  1922E

HOT AND HUMID WEATHER CONTINUES AS THE SUMMER-LIKE PATTERN PERSISTS….

The feel of summer continues today under partial sunshine.
Mainly mid level clouds have been covering the area most of the
day with low convective clouds joining the party by late this
morning into this afternoon.

Temperatures started the day in the mid 70s, which if it holds
will establish a new record high minimum for the date. The
current record is 69F set back in 1942 and 2017. Readings rose
quickly through the morning reaching the low 80s by mid morning,
and touching 90F by early this afternoon. To go along with the
hot temperatures, humidity levels are quite high. Dew point
values have been rising through the day from around 70F early
this morning into the mid 70s by early this afternoon. This is
bordering on oppressive levels at this point.

To make matters worse, there isn’t much in the way of wind today.
A generally southwest to west wind has only been averaging at
around 6mph for the day so far. The peak gust for the day so far
is only 14mph, which occurred just before 4am this morning.

Visibility has been limited all day due to haziness. The view
has only been between 30-40 miles all day.

The maximum temperature so far today is 90F degrees, which is
16 degrees above the normal high of 74F. The minimum temperature
since midnight is 74F degrees, which is 17 degrees above the
normal low of 57F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Overcast altocumulus/castellanus, few breaks in overcast
all quadrants, virga distant E-S-NNW
Temperature: 76F; Dew Point: 70F; Relative Humidity: 83%
Wind: SW @ 4 kts, wind light
Sea-level pressure: 1005.9 mb; 29.70 in. Hg: falling, then rising
Visibility: 30 miles, hazy
6-hr Max temp: 77F
6-hr Min temp: 74F
24-hr Precip: 0.00 inches
BHO SA 1155 E120 OVC 30 059/76/70/2304/970/ FEW BINOVC ALQDS
VIRGA DSNT E-S-NNW HAZY WND LGT/ 8/08/ 55002 10077 20074

10 A.M.
Weather: Broken altocumulus, broken cirrus, few cumulus distant
SE-S and distant SW-NW-NNE
Temperature: 82F; Dew Point: 73F; Relative Humidity: 73%
Wind: WSW @ 3 kts, wind light
Sea-level pressure: 1005.3 mb; 29.69 in. Hg: falling unsteadily
Visibility: 35 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 E150 BKN 250 BKN 35 053/82/73/2503/969/
FEW CU DSNT SE-S AND DSNT SW-NW-NNE HAZY WND LGT/ 8/251 57006

1 P.M.
Weather: Broken altocumulus, few cumulus all quadrants
Temperature: 86F; Dew Point: 73F; Relative Humidity: 64%
Wind: WSW @ 3 kts, wind light
Sea-level pressure: 1004.5 mb; 29.66 in. Hg: falling, then more slowly
Visibility: 35 miles, hazy
6-hr Max temp: 90F
6-hr Min temp: 76F
6-hr Precip: 0.00 inches
BHO SA 1755 E150 BKN 35 045/86/73/2503/966/ FEW CU ALQDS HAZY
WND LGT/ 8/250 56008 10090 20076

————————————————————–

SUMMARY FOR THURSDAY, JUNE 11, 2026

TEMPERATURE (DEGREES F)
MAX…….90   NORMAL…..74
MIN…….64   NORMAL…..56
MEAN……77   NORMAL…..65

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………+12
TOTAL DEPARTURE FOR THE MONTH………………………+60 [+5.3 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…….-25
TOTAL HEATING UNITS FOR THE SEASON………….6084  DEPARTURE……-102
TOTAL HEATING UNITS LAST SEASON TO DATE……..5649  DEPARTURE……+435

COOLING DEGREE DAYS (SEASON: JAN 2026 THRU DEC 2026)
TOTAL COOLING UNITS FOR YESTERDAY…………….12  DEPARTURE……..+9
TOTAL COOLING UNITS FOR THE MONTH (JUN)……….59  DEPARTURE…….+35
TOTAL COOLING UNITS FOR THE SEASON…………..118  DEPARTURE…….+66
TOTAL COOLING UNITS LAST SEASON TO DATE……….48  DEPARTURE…….+70

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)………..22 WNW  @   03:52 P.M.
VECTOR #1 (1-Sec)……….22 WNW  @   03:52 P.M.
VECTOR #2 (1-Sec)……….24 WNW  @   03:46 P.M.
DAVIS #1……………….21 W    @   03:47 P.M.
DAVIS #2 ………………22 WNW  @   03:46 P.M.
RMY #1 (Instantaneous)…..23 WNW  @   03:52 P.M.
RMY #2 (Instantaneous)…..23 WNW  @   03:46 P.M.
MERLIN…………………21 W
RICHARDS (C5C) (Inst)……21 WNW  @   03:52 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………13 WNW  @   05:33 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..15 WNW  @   03:47 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 WNW  @   03:47 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 WNW  @   03:47 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 WNW  @   03:47 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..15 WNW  @   03:47 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 WNW  @   03:47 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16 WNW  @   03:31 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………7.5 SW [180 total miles] VECTOR #1……………….8.4
VECTOR #2……………….8.6
DAVIS #1………………..8.2 WSW
DAVIS #2………………..8.3 W
RMY #1………………….8.3 WSW
RMY #2………………….8.5 WSW
RICHARDS (C5C)…………..8.2

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.16
TOTAL PRECIPITATION FOR THE MONTH (JUN)……..0.45 DEPARTURE…..-1.32
TOTAL PRECIPITATION FOR THE YEAR (2026)…….17.25 DEPARTURE…..-7.12

————————————————————–

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 90/64/77/+12/0.10/…/..            22 WNW VEC1 22 WNW RMY 23

6/12 The low since midnight is 74F, the daily normal low is 57F.

————————————————————–

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

RECORDS FOR JUNE 13
HIGH 93F IN 1988
LOW 43F IN 1982
PRECIP 6.07 INS 1998 [Record for month] PEAK GUST 69 MPH N IN 1956

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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