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Tuesday, July 7, 2026

July 7, 2026

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA TUESDAY, JULY 7, 2026 ALL TIMES ARE…

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

TUESDAY, JULY 7, 2026
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0415E
SUNSET:  1923E

BELOW AVERAGE TEMPERATURES CONTINUE ALONG WITH RAINY CONDITIONS…

Conditions were rainy today with overcast skies on top of
Great Blue Hill. Rainfall varied in intensity from drizzle
to steady rain throughout the observation period.
So far we have measured a total of 0.60 inches. The rain has
continued so there will be more precipitation to add to the
total tomorrow morning. By 1:00 P.M. today we have already
measured 0.49 inches above the normal daily precipitation
total of 0.11 inches. Today’s rain was much needed due to
our current drought conditions. As of this morning we stand
9.02 inches below the normal rainfall for this time of year.

Blowing fog caused visibility to be variable today with
sector visibility at each observation. We had a max
visibility of 10 miles during the 10:00 A.M. observation when
the precipitation had reduced from light rain to drizzle.
By 1:00 p.m. rainfall intensity increased to a steady rain.

Overnight saw a wind shift from the SE to the NE. We saw
an increase in wind speed today. So far we saw an estimated
peak gust of 35 MPH, with frequent gusts over 23 MPH (20 KTS).

With rainy conditions and wind for the North, temperatures
remained below average again today. The maximum temperature
so far today is 65F, which is 16 degrees below the normal
high of 81F. The minimum temperature since midnight is 61F,
which is 2 degrees below the normal low.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Overcast stratus, light rain
Temperature: 62F; Dew Point: 62F; Relative Humidity: 100%
Wind: ENE @ 14G23 kts
Sea-level pressure: 1019.9 mb; 30.12 in. Hg: falling, then rising
Visibility: 1/8 mile S-ENE and 1 mile ENE-S, fog
6-hr Max temp: 62F
6-hr Min temp: 61F
24-hr Precip: 0.17 inches
BHO SA 1155 20 OVC 1/8R-F 199/62/62/0614G23/012/ VSBY 1 ENE-S/
8/6// 57002 70017 10062 20061

10 A.M.
Weather: Broken stratus fractus, broken stratus, overcast
altostratus, drizzle
Temperature: 65F; Dew Point: 65F; Relative Humidity: 100%
Wind: ENE @ 15G24 kts
Sea-level pressure: 1019.2 mb; 30.10 in. Hg: rising, then falling
Visibility: 10 miles NE-W and 3/4 mile W-NE, fog
3-hr Precip: 0.19 inches
BHO SA 1455 E10 BKN E30 BKN 70 OVC 10LF 192/65/65/0715G24/010/
VSBY 3/4 W-NE/ 8/72/ 58007 6019/

1 P.M.
Weather: Overcast stratus, rain
Temperature: 65F; Dew Point: 65F; Relative Humidity: 100%
Wind: NE @ 14G30 kts
Peak Wind: 30 kts (35 MPH) NE @ 12:48 P.M.
Sea-level pressure: 1018.2 mb; 30.07 in. Hg: falling, then more rapidly
Visibility: 1/2 mile SSE-ESE and 1 miles ESE-SSE
6-hr Max temp: 65F
6-hr Min temp: 62F
6-hr Precip: 0.43 inches
BHO SA 1755 10 OVC 1/2RF 182/65/65/0514G30/007/ VSBY 1 ESE-SSE
PK WND 0530/48/ 8/6// 58010 60043/ 10065 20062

————————————————————–

SUMMARY FOR MONDAY, JULY 6, 2026

TEMPERATURE (DEGREES F)
MAX…….74   NORMAL…..81
MIN…….60   NORMAL…..63
MEAN……67   NORMAL…..72

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………….-5
TOTAL DEPARTURE FOR THE MONTH………………………+53 [+8.8 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 (JUL)………..0  DEPARTURE……..-2
TOTAL HEATING UNITS FOR THE SEASON…………….0  DEPARTURE……..-2
TOTAL HEATING UNITS LAST SEASON TO DATE………..0  DEPARTURE………0

COOLING DEGREE DAYS (SEASON: JAN 2026 THRU DEC 2026)
TOTAL COOLING UNITS FOR YESTERDAY……………..2  DEPARTURE……..-6
TOTAL COOLING UNITS FOR THE MONTH (JUL)……….93  DEPARTURE…….+51
TOTAL COOLING UNITS FOR THE SEASON…………..332  DEPARTURE……+151
TOTAL COOLING UNITS LAST SEASON TO DATE………249  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)………..24 E    @   10:00 P.M.
VECTOR #1 (1-Sec)……….24 E    @   10:00 P.M.
VECTOR #2 (1-Sec)……….23 S    @   02:49 A.M.
DAVIS #1……………….25 S    @   02:50 A.M.
DAVIS #2 ………………29 S    @   02:50 A.M.
RMY #1 (Instantaneous)…..24 S    @   02:49 A.M.
RMY #2 (Instantaneous)…..24 S    @   02:49 A.M.
MERLIN…………………M
RICHARDS (C5C) (Inst)……22 S    @   02:49 A.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 E    @   10:02 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..17 E    @   10:02 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 S    @   03:38 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 E    @   10:02 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………20 S    @   03:11 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 E    @   10:01 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 S    @   03:38 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16 E    @   10:02 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………8.7 ESE [208 total miles] VECTOR #1……………….8.9
VECTOR #2……………….9.4
DAVIS #1………………..9.1 SE
DAVIS #2………………..9.3 SE
RMY #1………………….9.0 SE
RMY #2………………….9.4 ESE
RICHARDS (C5C)…………..9.4

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.17 DEPARTURE…..+0.06
TOTAL PRECIPITATION FOR THE MONTH (JUL)……..0.22 DEPARTURE…..-0.45
TOTAL PRECIPITATION FOR THE YEAR (2026)…….18.88 DEPARTURE…..-9.02

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR JULY 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

7/1  95/68/82/+11/0.00/…/..            23 WSW VEC1 23 SW  RMY 24
7/2  99/72/86/+15/0.04/…/..            40 W   VEC1 39 W   RMY 45 TSTM
7/3  98/77/88/+16/0.00/…/..            32 WNW VEC1 32 WNW RMY 34 TSTM
7/4  94/73/84/+12/0.01/…/..            29 WNW VEC1 29 WNW RMY 29
7/5  83/69/76/+4/T/…/..                20 SSE VEC1 20 SE  RMY 17
7/6  74/60/67/-5/…./…/..             24 E   VEC1 24 E   RMY 24

7/7 The low since midnight is 61F, the daily normal low is 63F.

————————————————————–

JULY DAILY RECORDS TO DATE

7/2 RECORD HIGH MAXIMUM TEMPERATURE OF 99F,
BEATING THE PREVIOUS RECORD OF 95F SET IN 1963

7/2 RECORD HIGH MINIMUM TEMPERATURE OF 72F,
THIS TIED THE RECORD WITH 1901, 1913, AND 1963

7/3 RECORD HIGH MINIMUM TEMPERATURE OF 77F,
BEATING THE PREVIOUS RECORD OF 76F SET IN 2002

————————————————————–

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

RECORDS FOR JULY 7
HIGH 97F IN 1908,1993
LOW 48F IN 1902
PRECIP 2.11 INS IN 1966
PEAK GUST 63 MPH NW IN 2021

RECORDS FOR JULY 8
HIGH 95F IN 1981
LOW 50F IN 1919
PRECIP 1.74 INS IN 1916
PEAK GUST 46e SSW IN 1941

TODAY’S REPORT PREPARED BY: Kaitlin Geagan

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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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