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Wednesday, July 13, 2022

July 13, 2022

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA WEDNESDAY, JULY 13, 2022 ALL TIMES ARE…

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

WEDNESDAY, JULY 13, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0419E
SUNSET:  1920E

VERY WARM AND A BIT HUMID TODAY UNDER MAINLY SUNNY SKIES….

Showers and thunderstorms that impacted western and central
portions of the state fell apart as they progressed into
eastern areas last evening. As such, only a trace of rain was
recorded here on the hill with a few of the left over showers
moving through. So the dry beat goes on with likely worsening
drought conditions. The monthly rainfall deficit is now at
0.96 inches and the annual deficit at 7.80 inches.

Sunshine has been the main theme today with only a few clouds
around at various times through the day. Temperatures have
warmed into the upper 80s to near 90 making for a very warm
day outdoors. In addition humidity levels are a bit elevated
with the dew point in the low to mid 60s this morning, but
finally dipping to the upper 50s this afternoon.

The wind has been on the light side today, as such it’s not
offering much in the way of relief from the very warm air.
The average speed for the day thus far has only been around
9mph. Peak gust thus far is 22mph occurring late this morning.

Visibility has been decent today rising from 45 miles early
this morning to around 60 miles late this morning and afternoon.

The high so far today is 89F, which is 7 degrees above the
normal maximum of 82F. The low since midnight is 67F, which
is 3 degrees above the normal minimum of 64F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Scattered altocumulus/castellanus, scattered cirrus
Temperature: 72F; Dew Point: 64F; Relative Humidity: 76%
Wind: NW @ 7 kts
Sea-level pressure: 1010.7 mb; 29.85 in. Hg: rising, then more rapidly
Visibility: 45 miles
6-hr Max temp: 72F
6-hr Min temp: 67F
24-hr Precip: Trace
BHO SA 1155 85 SCT 250 SCT 45 107/72/64/3207/985/ 8/082 53020
70000 10072 20067

10 A.M.
Weather: Clear, few cumulus distant SW-N, few cirrus distant SE-SW
Temperature: 82F; Dew Point: 61F; Relative Humidity: 50%
Wind: WNW @ 5 kts, wind light
Sea-level pressure: 1011.1 mb; 29.86 in Hg: steady then rising
Visibility: 60 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 60 111/82/61/3005/986/ FEW CU DSNT SW-N
FEW CI DSNT SE-SW WND LGT/ 8/201 53004

1 P.M.
Weather: Scattered cumulus, thin scattered cirrus
Temperature: 86F, Dew point: 59F; Relative Humidity: 40%
Wind: WSW @ 6 kts, wind light
Sea-level pressure: 1011.1mb; 29.86 in Hg: rising then falling
Visibility: 60 miles
6-hr Max temp: 89F
6-hr Min temp: 72F
6-hr Precip: 0.00 ins.
BHO SA 1755 55 SCT 250 -SCT 60 111/86/59/2506/986/ WND LGT/
8/201 50000 10089 20072

————————————————————–

SUMMARY FOR TUESDAY, JULY 12, 2022

TEMPERATURE (DEGREES F)
MAX…….86   NORMAL…..82
MIN…….63   NORMAL…..64
MEAN……75   NORMAL…..73

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+2
TOTAL DEPARTURE FOR THE MONTH………………..+7 [+0.4 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………24  DEPARTURE…….-24

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY……………10  DEPARTURE……..+2
TOTAL COOLING UNITS FOR THE MONTH……………93  DEPARTURE……..+4
TOTAL COOLING UNITS FOR THE SEASON………….248  DEPARTURE…….+20
TOTAL COOLING UNITS LAST SEASON TO DATE……..269  DEPARTURE…….-21

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….38 S   @  2:03 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..41     @ 12:30 P.M.
DAVIS #2 ………………43 S   @  2:03 P.M.
RMY #2 (Instantaneous)…..39 S   @  2:03 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………………28 SSW @  2:11 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..28     @  2:09 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………29 S   @  2:04 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..29 SW  @  2:09 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……..17.0 SSW [409 total miles] VECTOR #2………………17.4
DAVIS #2……………….17.0 SW
RMY #2…………………17.6 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…….TRACE DEPARTURE…..-0.12
TOTAL PRECIPITATION FOR THE MONTH…………..0.37 DEPARTURE…..-0.96
TOTAL PRECIPITATION FOR THE YEAR…………..20.76 DEPARTURE…..-7.80

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  86/63/75/+2/T/…/..                38 SSW AERO N/A    RMY 39

7/13  The low since midnight is 67F, 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 13
HIGH 95F IN 1894
LOW 52F IN 1888, 1939, 1973
PRECIP 3.54 INS IN 1996
WIND 55 MPH SE IN 1996

RECORDS FOR JULY 14
HIGH 98F IN 1952
LOW 51F IN 1895, 1937
PRECIP 2.28 INS IN 1948
WIND 110e MPH NW IN 1942 [THUNDERSTORM GUST; RECORD FOR MONTH]

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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§ 01

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