Thursday, July 7, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
THURSDAY, JULY 7, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0415E
SUNSET: 1923E
MOSTLY CLOUDY AND COOLER WITH GREAT VISIBILITY ATOP
GREAT BLUE HILL….
Skies were mostly cloudy with wind shifting being light for
the most part. The highest gust today was about 13 mph much
earlier this morning.
Weather conditions were quite a relief in comparison to
yesterday, with dew points in only the mid 50’s.
Visibility was 80 miles all day, a great accompaniment to
the cooler weather.
The high so far today is 79F, which is 2 degrees below the
normal maximum of 81F. The low since midnight is 63F, which
is the same as the normal minimum.
————————————————————–
PRELIMINARY STATS FOR JUNE 2022
TEMPERATURE, Deg. F
Avg. Max. 76.3 [+0.9]
Avg. Min. 57.0 [-0.6]
Mean 66.7 [+0.2]
24-hour corrected mean: 65.3
Max. for month: 92F on the 26th
Min. for month: 48F on the 19th and 20th
HEATING DEGREE DAYS
Total heating units: 44 [-022]
Total for the season: 5610 [-600]
Total for last season: 5597
COOLING DEGREE DAYS
Total cooling units: 95 [-016]
Total for the season: 155 [+016]
Total for last season: 226
PRECIPITATION, Inches
Total: 2.81 [-1.82]
Greatest in 24 hrs: 0.84 on the 27th
WIND, mph
Avg. uncorrected wind speed: 9.7 mph
Avg. corrected wind speed: 10.4 mph
Prevailing wind direction: SSW [15%]
Peak gust and direction: 43 WNW on the 9th
SUNSHINE:
Campbell-Stokes card minutes: 16338 of a possible 26376 or 62%
Astronomical total minutes: 16967 of a possible 27411 or 62%
————————————————————–
Today’s Observations:
7 A.M.
Weather: Broken altocumulus, few cumulus
Temperature: 70F; Dew Point: 57F; Relative Humidity: 64%
Wind: E @ 6 kts, wind light
Sea-level pressure: 1017.8 mb; 30.06 in. Hg: rising, then
more slowly
Visibility: 80 miles
6-hr Max temp: 70F
6-hr Min temp: 63F
24-hr Precip: 0.00 ins.
BHO SA 1155 80 BKN 80 178/70/57/0906/006/ FEW CU ALQDS
WND LGT/ 8/250 51015 10070 20063
10 A.M.
Weather: Scattered cumulus, broken altocumulus
Temperature: 74F; Dew Point: 57F; Relative Humidity: 55%
Wind: SSW @ 7G12 kts
Sea-level pressure: 1017.7 mb; 30.06 in Hg: falling unsteadily
Visibility: 80 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 25 SCT 80 BKN 80 177/74/57/2007G12/006/
8/270 57001
1 P.M.
Weather: Scattered cumulus, broken altocumulus
Temperature: 75F, Dew point: 57F; Relative Humidity: 54%
Wind: S @ 6 kts, wind light
Sea-level pressure: 1016.6 mb; 30.02 in Hg: falling, then more
rapidly
Visibility: 80 miles
6-hr Max temp: 79F
6-hr Min temp: 70F
6-hr Precip: 0.00 ins.
BHO SA 1755 25 SCT 80 BKN 80 166/75/57/1806/002/ WND LGT/
8/270 58011 10079 20070
————————————————————–
SUMMARY FOR WEDNESDAY, JULY 6, 2022
TEMPERATURE (DEGREES F)
MAX…….83 NORMAL…..81
MIN…….64 NORMAL…..63
MEAN……74 NORMAL…..72
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….+2
TOTAL DEPARTURE FOR THE MONTH……………….+11 [+1.6 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……..-2
TOTAL HEATING UNITS FOR THE SEASON……………0 DEPARTURE……..-2
TOTAL HEATING UNITS LAST SEASON TO DATE………20 DEPARTURE…….-21
COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….3 DEPARTURE……..+2
TOTAL COOLING UNITS FOR THE MONTH……………42 DEPARTURE……..+9
TOTAL COOLING UNITS FOR THE SEASON………….197 DEPARTURE…….+25
TOTAL COOLING UNITS LAST SEASON TO DATE……..234 DEPARTURE…….-40
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….37 SSW @ 12:38 A.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..38 @ 12:38 A.M.
DAVIS #2 ………………33 SSW @ 12:46 A.M.
RMY #2 (Instantaneous)…..38 SSW @ 12:38 A.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 @ 1:24 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..26 @ 1:21 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………24 SSW @ 1:21 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 SSW @ 1:21 A.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……..12.3 NNW [296 total miles]
VECTOR #2………………12.7
DAVIS #2……………….12.5 WNW
RMY #2…………………12.6 WNW
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…..-0.30
TOTAL PRECIPITATION FOR THE YEAR…………..20.76 DEPARTURE…..-7.14
PRELIMINARY CLIMATE SUMMARY FOR JUNE 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
6/01 62/52/57/-5/0.08/009/01 21 SSW AERO N/A RMY 22
6/02 67/53/60/-2/T/308/34 20 S AERO N/A RMY 21
6/03 64/52/58/-7/0.05/000/00 22 ENE AERO N/A RMY 22
6/04 75/52/64/+1/0.01/554/61 28 SSW AERO N/A RMY 29
6/05 76/50/63/0/0.00/882/97 28 WNW AERO N/A RMY 28
6/06 80/56/68/+5/0.00/783/86 22 S AERO N/A RMY 23
6/07 80/60/70/+6/0.02/619/68 36 SSW AERO N/A RMY 38
6/08 79/60/70/+6/0.42/537/59 36 S AREO N/A RMY 39
6/09 80/59/70/+6/0.71/466/51 43 WNW AERO N/A RMY 45
6/10 75/55/65/0/0.00/803/88 34 WNW AERO N/A RMY 33
6/11 78/58/68/+3/0.00/494/54 27 W AERO N/A RMY 27
6/12 77/59/68/+3/0.00/484/53 31 SSW AERO N/A RMY 32
6/13 82/64/73/+7/0.17/650/71 26 NW AERO N/A RMY 25
6/14 81/58/70/+4/0.00/869/95 23 NW AERO N/A RMY 24
6/15 73/59/66/0/0.00/632/69 22 ENE AERO N/A RMY 23
6/16 71/58/65/-2/0.00/421/46 34 SSW AERO N/A RMY 37
6/17 82/64/73/+6/0.20/559/61 35 NW AERO N/A RMY 35 TSTM
6/18 68/51/60/-7/T/440/48 36 NW AERO N/A RMY 37
6/19 60/48/54/-14/0.31/028/03 28 NNW AERO N/A RMY 27
6/20 77/48/63/-5/0.00/834/91 31 NNW AERO N/A RMY 30
6/21 77/54/66/-2/0.00/771/84 24 S AERO N/A RMY 25
6/22 73/56/65/-4/0.00/651/71 26 ESE AERO N/A RMY 28
6/23 75/58/67/-2/0.00/459/50 27 SE AERO N/A RMY 29
6/24 80/57/69/0/0.00/541/59 15 W AERO N/A RMY 16
6/25 87/62/75/+5/0.00/861/94 18 NNW AERO N/A RMY 18
6/26 92/67/80/+10/0.00/852/93 33 SSW AERO N/A RMY 35
6/27 74/61/68/-2/0.84/064/07 35 SW AERO N/A RMY 36
6/28 80/55/68/-2/0.00/814/89 22 NW AERO N/A RMY 21
6/29 83/62/73/+2/0.00/759/83 22 SSW AERO N/A RMY 24
6/30 80/61/71/0/0.00/823/90 28 NW AERO N/A RMY 27
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/…./…/.. 37 SSW AERO N/A RMY 39
7/6 83/64/74/+2/…./…/.. 37 SSW AERO N/A RMY 38
7/7 The low since midnight is 63F, the daily normal low is 63F
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: Benjamin Turner
