Wednesday, June 29, 2022

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

WEDNESDAY, JUNE 29, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0410E
SUNSET:  1925E

MOSTLY CLOUDY WITH A WARM SOUTHWESTERLY WIND….

We observed an excellent visibility of over 80 miles all day
under mostly cloudy skies. Cloud cover consisted of puffy
cumulus and some thin cirrus. Wind was calm this morning,
but did increase to around 10 mph by the 1 P.M. observation.

Pressure is on a steady fall since noontime, but conditions
have remained dry as dew points dip into the low 50’s. The
temperature drops off by a good 5 degrees whenever clouds
pass over the summit.

The high so far today is 81F, which is 1 degree above the
normal maximum of 80F. The low since midnight is 62F, which
is the same as the normal minimum.

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Today’s Observations:

7 A.M.
Weather: Broken cirrus
Temperature: 71F; Dew Point: 58F; Relative Humidity: 64%
Wind: Calm
Sea-level pressure: 1023.6 mb; 30.23 in. Hg: rising then falling
Visibility: 85 miles
6-hr Max temp: 71F
6-hr Min temp: 62F
24-hr Precip: 0.00 ins.
BHO SA 1155 250 BKN 85 236/71/58/0000/023/ WND CALM/ 8/001
50006 10071 20062

10 A.M.
Weather: Scattered cumulus, broken cirrus
Temperature: 78F; Dew Point: 57F; Relative Humidity: 59%
Wind: SW @ 7 kts
Sea-level pressure: 1023.7 mb; 30.23 in Hg: rising then steady
Visibility: 85 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 40 SCT 250 BKN 85 237/78/57/2207/023/ 8/201 53001

1 P.M.
Weather: Broken cumulus and cirrus
Temperature: 78F, Dew point: 54F; Relative Humidity: 44%
Wind: WSW @ 7G13 kts
Sea-level pressure: 1022.3 mb; 30.19 in Hg: falling, then more
rapidly
Visibility: 80 miles
6-hr Max temp: 81F
6-hr Min temp: 71F
6-hr Precip: 0.00 ins.
BHO SA 1755 40 BKN 250 BKN 80 223/78/54/2407G13/019/ 8/201 58014
10081 20071

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SUMMARY FOR TUESDAY, JUNE 28, 2022

TEMPERATURE (DEGREES F)
MAX…….80   NORMAL…..79
MIN…….55   NORMAL…..62
MEAN……68   NORMAL…..70

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….-2
TOTAL DEPARTURE FOR THE MONTH………………+11 [+0.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY…………….0  DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE MONTH……………44  DEPARTURE…….-21
TOTAL HEATING UNITS FOR THE SEASON…………5610  DEPARTURE……-599
TOTAL HEATING UNITS LAST SEASON TO DATE…….5597  DEPARTURE…….+13

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….3  DEPARTURE……..-3
TOTAL COOLING UNITS FOR THE MONTH……………81  DEPARTURE…….-18
TOTAL COOLING UNITS FOR THE SEASON………….141  DEPARTURE…….+15
TOTAL COOLING UNITS LAST SEASON TO DATE……..190  DEPARTURE…….-49

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….22 NW  @ 12:23 A.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..23     @ 12:23 A.M.
DAVIS #2 ………………20 NNW @ 12:24 A.M.
RMY #2 (Instantaneous)…..21 NW  @ 12:23 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………………14 NW  @  1:00 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16     @ 12:24 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………15 NW  @  5:01 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..15 NW  @ 12:24 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……..6.4 NW [154 total miles] VECTOR #2………………7.5
DAVIS #2……………….7.1 NW
RMY #2…………………7.4 NW
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…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..2.81  DEPARTURE…..-1.56
TOTAL PRECIPITATION FOR THE YEAR…………..20.39  DEPARTURE…..-6.58

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
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/…/..             22 NW  AERO N/A    RMY 21

6/29  The low since midnight is 62F, the daily normal low is 62F

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

RECORDS FOR JUNE 29
HIGH 95F IN 2021
LOW 42F IN 1919
PRECIP 1.60 INS IN 1889
PEAK GUST 49 MPH S IN 1957

RECORDS FOR JUNE 30
HIGH 94F IN 1964
LOW 47F IN 1919
PRECIP 3.04 INS IN 1921
PEAK GUST 51 MPH WNW IN 1957

TODAY’S REPORT PREPARED BY: Benjamin Turner