Monday, July 18, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, JULY 18, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0423E
SUNSET: 1917E
LIGHT RAIN OCCURRING LATER ON DURING AN OVERALL
HUMID WEATHER DAY….
We observed limited visibility with 2 miles in fog being
seen at the 7 A.M. observation, improving to a maximum of
30 miles with haze at 10 A.M. Weather conditions remained
humid and hazy, with dew points staying in the low 70’s
as the day went on.
Despite light showers beginning around noontime, there is
no measurable rainfall at the 1 P.M. observation. The
rainfall seems to have stopped by 2 P.M.
The high so far today is 80F, which is 2 degrees below the
normal maximum of 82F. The low since midnight is 68F, which
is 4 degrees above the normal minimum of 64F.
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Today’s Observations:
7 A.M.
Weather: Overcast stratus
Temperature: 71F; Dew Point: 71F; Relative Humidity: 100%
Wind: SSW @ 8 kts
Sea-level pressure: 1016.2 mb; 30.01 in. Hg: falling unsteadily
Visibility: 2 miles, fog
6-hr Max temp: 71F
6-hr Min temp: 68F
24-hr Precip: 0.00 ins.
BHO SA 1155 15 OVC 2F 162/71/71/2008/001/ 8/6// 57003
10071 20068
10 A.M.
Weather: Overcast altocumulus, few stratocumulus
Temperature: 78F; Dew Point: 71F; Relative Humidity: 79%
Wind: SSW @ 8G14 kts
Sea-level pressure: 1015.9 mb; 30.00 in Hg: falling, then
more rapidly
Visibility: 30 miles, hazy
3-hr Precip: 0.00 ins.
BHO SA 1455 140 OVC 30 159/78/71/2008G14/000/ FEW SC ALQDS
HAZY/ 8/87/ 58009
1 P.M.
Weather: Overcast nimbostratus, few stratocumulus, very light
rain
Temperature: 78F, Dew point: 73F; Relative Humidity: 85%
Wind: S @ 13G18 kts
Sea-level pressure: 1014.0 mb; 29.94 in Hg: falling, then more rapidly
Visibility: 20 miles, thin fog
6-hr Max temp: 80F
6-hr Min temp: 71F
6-hr Precip: Trace
BHO SA 1755 130 OVC 20R- 140/78/73/1813G18/994/ FEW SC ALQDS
THN F ALQDS PCPN VRY LGT/ 8/82/ 58019 6000/ 10080 20071
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SUMMARY FOR SUNDAY, JULY 17, 2022
TEMPERATURE (DEGREES F)
MAX…….89 NORMAL…..82
MIN…….65 NORMAL…..64
MEAN……77 NORMAL…..73
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+4
TOTAL DEPARTURE FOR THE MONTH……………….+19 [+0.9 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……..-4
TOTAL HEATING UNITS FOR THE SEASON……………0 DEPARTURE……..-4
TOTAL HEATING UNITS LAST SEASON TO DATE………26 DEPARTURE…….-26
COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY……………12 DEPARTURE……..+4
TOTAL COOLING UNITS FOR THE MONTH…………..145 DEPARTURE…….+15
TOTAL COOLING UNITS FOR THE SEASON………….300 DEPARTURE…….+31
TOTAL COOLING UNITS LAST SEASON TO DATE……..309 DEPARTURE…….-9
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….31 SSW @ 2:21 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..32 @ 2:18 P.M.
DAVIS #2 ………………29 S @ 1:33 P.M.
RMY #2 (Instantaneous)…..33 SSW @ 2:21 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………………22 SSW @ 2:42 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22 @ 2:32 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 SW @ 2:42 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..22 SSW @ 2:32 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…….. 9.1 SSW [218 total miles]
VECTOR #2……………….9.8
DAVIS #2………………..9.5 SW
RMY #2………………….9.8 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…………..0.51 DEPARTURE…..-1.39
TOTAL PRECIPITATION FOR THE YEAR…………..20.90 DEPARTURE…..-8.23
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/713/79 38 SSW AERO N/A RMY 39
7/13 89/67/78/+5/0.00/820/91 22 WNW AERO N/A RMY 22
7/14 86/64/75/+2/0.14/675/75 26 WNW AERO N/A RMY 27
7/15 85/61/73/0/0.00/862/96 21 S AERO N/A RMY 22
7/16 84/63/74/+1/0.00/…/.. 25 SSW AERO N/A RMY 26
7/17 89/65/77/+4/0.00/…/.. 31 SSW AERO N/A RMY 26
7/18 89/65/77/+4/0.00/…/.. 31 SSW AERO N/A RMY 33
7/19 The low since midnight is 68F, 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 18
HIGH 96F IN 1991, 1999
LOW 54F IN 1892, 1956, 1971
PRECIP 1.65 INS IN 2000
WIND 43e MPH SW IN 1949
RECORDS FOR JULY 19
HIGH 96F IN 1977, 1991
LOW 50F IN 1890
PRECIP 1.10 INS IN 1951
WIND 63 MPH SSW IN 1982
TODAY’S REPORT PREPARED BY: Benjamin Turner
