Saturday, July 9, 2022

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

SATURDAY, JULY 9, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0416E
SUNSET:  1922E

ALMOST CLOUDLESS WITH GREAT VISIBILITY ….

Skies were clear today for the most part with some passing
cumulus and cirrus clouds. Visibility was great at 80 miles,
and a light sea breeze persisted as the day went on. Wind
was on the lighter side, barely reaching 20 mph this morning.

We continue our dry stretch with a deficit of a half inch
on the month and almost 7.5 inches on the year. Most of
the state is in a moderate drought save the Berkshires
and Cape Cod. These areas are still rated as “Abnormally
Dry”, according to the drought monitor.

The high so far today is 78F, which is 4 degrees below the
normal maximum of 82F. The low since midnight is 65F, which
is a degree above the normal minimum of 64F.

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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%

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Today’s Observations:

7 A.M.
Weather: Few cumulus offshore NE-SE, few cirrus
Temperature: 71F; Dew Point: 54F; Relative Humidity: 55%
Wind: NNE @ 7 kts
Sea-level pressure: 1017.3 mb; 30.04 in. Hg: rising, then
more slowly
Visibility: 80 miles
6-hr Max temp: 71F
6-hr Min temp: 65F
24-hr Precip: 0.00 ins.
BHO SA 1155 CLR 80 173/71/54/0207/004/ FEW SML CU OFFSHR
NE-SE FEW THN CI ALQDS/ 8/101 51011 10071 20065

10 A.M.
Weather: Clear, few cumulus and cirrus
Temperature: 73F; Dew Point: 53F; Relative Humidity: 49%
Wind: E @ 10G16 kts
Sea-level pressure: 1018.4 mb; 30.07 in Hg: rising, then
more slowly
Visibility: 80 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 80 184/73/53/0910G16/007/ FEW SML CU
ALQDS FEW THN CI ALQDS/ 8/101 51011

1 P.M.
Weather: Clear, few cumulus and cirrus
Temperature: 76F, Dew point: 53F; Relative Humidity: 45%
Wind: ENE @ 4 kts, light and variable
Sea-level pressure: 1017.6 mb; 30.05 in Hg: falling, then more
rapidly
Visibility: 80 miles
6-hr Max temp: 78F
6-hr Min temp: 71F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 80 176/76/53/0704/005/ FEW SML CU ALQDS
FEW THN CI ALQDS WND L/V/ 8/101 58008 10078 20071

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SUMMARY FOR FRIDAY, JULY 8, 2022

TEMPERATURE (DEGREES F)
MAX…….85   NORMAL…..81
MIN…….60   NORMAL…..63
MEAN……73   NORMAL…..72

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+1
TOTAL DEPARTURE FOR THE MONTH……………….+11 [+1.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….0  DEPARTURE……..-1
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………20  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……………65  DEPARTURE……..+8
TOTAL COOLING UNITS FOR THE SEASON………….220  DEPARTURE…….+24
TOTAL COOLING UNITS LAST SEASON TO DATE……..258  DEPARTURE…….-38

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….24 WSW @  1:51 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..26     @  1:51 P.M.
DAVIS #2 ………………24 WSW @  1:11 P.M.
RMY #2 (Instantaneous)…..24 WSW @  2:37 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………………16 WSW @  1:10 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16     @  2:37 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………16 WSW @  2:37 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 WSW @  1:15 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……..10.1 SW [243 total miles] VECTOR #2………………10.8
DAVIS #2……………….10.5 SW
RMY #2…………………10.9 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…..-0.10
TOTAL PRECIPITATION FOR THE MONTH…………..0.37 DEPARTURE…..-0.50
TOTAL PRECIPITATION FOR THE YEAR…………..20.76 DEPARTURE…..-7.34

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   79/62/71/-1/0.00/…/..             27 SSW AERO N/A    RMY 29
7/8   85/60/73/+1/0.00/…/..             24 WSW AERO N/A    RMY 24

7/9  The low since midnight is 65F, 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 9
HIGH 98F IN 1912
LOW 47F IN 1909
PRECIP 3.74 INS IN 1921
WIND 46 MPH NW IN 1992

RECORDS FOR JULY 10
HIGH 99F IN 1911
LOW 46F IN 1890
PRECIP 1.95 INS IN 2015
WIND 75 MPH W IN 1985

TODAY’S REPORT PREPARED BY: Benjamin Turner