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Tuesday, July 12, 2022

July 12, 2022

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA TUESDAY, JULY 12, 2022 ALL TIMES ARE…

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

TUESDAY, JULY 12, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0418E
SUNSET:  1921E

WARM AND BECOMING MORE HUMID UNDER MAINLY SUNNY SKIES….

Sunshine has been the theme today, but signs of clouds gathering
to the west are showing up this afternoon as our next cold front
approaches the region.

Yet another day with temperatures warming into the mid and upper
80s. The big difference today is the increase in humidity as the
dew point has risen from the low 60s this morning to the upper
60s this afternoon. It may top out into the lower 70s this
evening as moisture pools ahead of the front.

Thankfully there is a nice breeze out there today helping to
mitigate the discomfort from the increased humidity levels. The
wind has been gradually backing from the southwest to the south-
southwest. Gusts between 35-40mph have been occurring since mid
morning. The average speed for the day thus far is around 17mph.

Visibility has been limited today due to general haziness. The
view has slipped to 35 miles this afternoon after being around
40 miles this morning.

The high so far today is 86F, which is 4 degrees above the
normal maximum of 82F. The low since midnight is 63F, which
is 1 degree below the normal minimum of 64F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few altocumulus all quadrants
Temperature: 71F; Dew Point: 62F; Relative Humidity: 73%
Wind: SW @ 13G21 kts
Sea-level pressure: 1008.9 mb; 29.79 in. Hg: falling, then more rapidly
Visibility: 40 miles, hazy
6-hr Max temp: 71F
6-hr Min temp: 63F
24-hr Precip: 0.00 ins.
BHO SA 1155 CLR 40 089/71/62/2213G21/979/ FEW AC ALQDS HAZY/
8/050 58008 10071 20063

10 A.M.
Weather: Clear, few cumulus distant ESE-S, few altocumulus
distant W-NW, few cirrus distant SE-ESE
Temperature: 82F; Dew Point: 61F; Relative Humidity: 50%
Wind: SW @ 18G25 kts, peak wind SSW 33mph at 9:30 A.M.
Sea-level pressure: 1007.1 mb; 29.74 in Hg: falling, then more slowly
Visibility: 40 miles, hazy
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 40 071/82/61/2218G25/974/ FEW CU DSNT ESE-S
FEW AC DSNT W-NW FEW CI DSNT NE-ESE HAZY PK WND 2129/30/ 8/251 56018

1 P.M.
Weather: Clear, few cumulus all quadrants, few altocumulus SW-N
Temperature: 83F, Dew point: 67F; Relative Humidity: 59%
Wind: SSW @ 21G30 kts, peak wind SSW 36mph at 12:30 P.M.
Sea-level pressure: 1005.9mb; 29.70 in Hg: falling, then more rapidly
Visibility: 35 miles, hazy
6-hr Max temp: 86F
6-hr Min temp: 71F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 35 059/83/67/2021G30/970/ FEW CU ALQDS FEW AC SW-N
HAZY PK WND 2131/30/ 8/250 58012 10086 20071

————————————————————–

SUMMARY FOR MONDAY, JULY 11, 2022

TEMPERATURE (DEGREES F)
MAX…….86   NORMAL…..82
MIN…….63   NORMAL…..64
MEAN……73   NORMAL…..73

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………0
TOTAL DEPARTURE FOR THE MONTH………………..+5 [+0.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….0  DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH…………….0  DEPARTURE……..-3
TOTAL HEATING UNITS FOR THE SEASON……………0  DEPARTURE……..-3
TOTAL HEATING UNITS LAST SEASON TO DATE………23  DEPARTURE…….-23

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….8  DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH……………83  DEPARTURE……..+2
TOTAL COOLING UNITS FOR THE SEASON………….238  DEPARTURE…….+18
TOTAL COOLING UNITS LAST SEASON TO DATE……..269  DEPARTURE…….-31

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….31 SSW @  5:21 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..33     @  4:20 P.M.
DAVIS #2 ………………33 S   @  4:07 P.M.
RMY #2 (Instantaneous)…..33 SSW @  5:21 P.M.
ASOS………..OUT OF SERVICE D/T RENOVATIONS
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…….OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
MERLIN………OUT OF SERVICE D/T RENOVATIONS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………25 SSW @  5:32 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..24     @  5:55 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………25 S   @  5:32 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..24 SSW @  4:53 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……..OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE….OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE RMY #1 AVERAGE……OUT OF SERVICE D/T RENOVATIONS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..13.6 SW [327 total miles] VECTOR #2………………14.2
DAVIS #2……………….14.2 SW
RMY #2…………………14.3 SW
RMY #1……….OUT OF SERVICE D/T RENOVATIONS
ASOS…………OUT OF SERVICE D/T RENOVATIONS
VECTOR #1…….OUT OF SERVICE D/T RENOVATIONS
DAVIS #1……..OUT OF SERVICE D/T RENOVATIONS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.11
TOTAL PRECIPITATION FOR THE MONTH…………..0.37 DEPARTURE…..-0.84
TOTAL PRECIPITATION FOR THE YEAR…………..20.76 DEPARTURE…..-7.68

PRELIMINARY CLIMATE SUMMARY FOR JULY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system gust
RMY:  R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M:    Missing data

7/1   90/63/77/+6/0.00/704/77             33 S   AERO N/A    RMY 34
7/2   83/67/75/+4/0.25/228/25             25 WSW AERO N/A    RMY 26 TSTM
7/3   84/65/75/+3/0.00/547/60             25 WNW AERO N/A    RMY 26
7/4   83/60/72/0/0.00/838/92              25 WNW AERO N/A    RMY 26
7/5   73/63/68/-4/0.12/027/03             37 SSW AERO N/A    RMY 39
7/6   83/64/74/+2/T/701/77                37 SSW AERO N/A    RMY 38
7/7   79/62/71/-1/0.00/645/71             27 SSW AERO N/A    RMY 29
7/8   85/60/73/+1/0.00/472/52             24 WSW AERO N/A    RMY 24
7/9   79/63/71/-2/0.00/843/93             21 N   AERO N/A    RMY 22
7/10  81/57/69/-4/0.00/851/94             22 SSE AERO N/A    RMY 24
7/11  86/60/73/0/0.00/849/94              31 SSW AERO N/A    RMY 33

7/12  The low since midnight is 63F, the daily normal low is 64F

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

RECORDS FOR JULY 12
HIGH 96F IN 1908
LOW 48F IN 1945
PRECIP 1.43 INS IN 1975
WIND 48e MPH SSW IN 1944

RECORDS FOR JULY 13
HIGH 95F IN 1894
LOW 52F IN 1888, 1939, 1973
PRECIP 3.54 INS IN 1996
WIND 55 MPH SE IN 1996

TODAY’S REPORT PREPARED BY: Matt Douglas

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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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