Thursday, August 4, 2022

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

THURSDAY, AUGUST 4, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0439E
SUNSET:  1901E

WARMER TODAY WITH LIMITED VISIBILITY ATOP GREAT BLUE HILL….

Today was hot again with mostly clear skies and a limited
visibility of 35 miles due to haze. Wind was southwesterly,
reaching 30 mph for the max gust later on in the day.
Conditions were bearable with dew points dropping into the
low 60’s as temperatures made their way into the mid 90’s.

The high so far today is 96F, which is 13 degrees above the
normal maximum of 82F. This breaks the record of 95F, set
in 1928.
The low since midnight is 68F, which is 4 degrees above the
normal minimum of 64F.

The yearly rain deficit has now reached 9.85″ below normal!
Most of the area is under a severe drought.

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PRELIMINARY STATS FOR JULY 2022

TEMPERATURE, Deg. F
Avg. Max. 86.6 [+4.9] Avg. Min. 65.7 [+1.9] Mean      76.2 [+3.5] 24-hour corrected mean: 75.3
Max. for month: 99F on the 24th
Min. for month: 57F on the 10th

HEATING DEGREE DAYS
Total heating units:      0 [-007] Total for the season:     0 [-007] Total for last season:   26

COOLING DEGREE DAYS
Total cooling units:    352 [+104] Total for the season:   507 [+120] Total for last season:  379

PRECIPITATION, Inches
Total: 0.80 [-2.67] Greatest in 24 hrs: 0.25 on the 2nd

SNOWFALL, Inches
Total: 0.0 [0.0] Greatest in 24 hrs: N/A

WIND, mph
Avg. uncorrected wind speed: 10.6 mph
Avg. corrected wind speed:   11.2 mph
Prevailing wind direction:   SSW [21%] Peak gust and direction:  39 SSW on the 21st
SW  on the 24th

SUNSHINE:
Campbell-Stokes card minutes: 19356 of a possible 26826, or 73%
Astronomical total minutes: 20129 of a possible 27739, or 73%

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Today’s Observations:

7 A.M.
Weather: Clear
Temperature: 74F; Dew Point: 68F; Relative Humidity: 82%
Wind: S @ 8G14 kts
Sea-level pressure: 1018.1 mb; 30.06 in. Hg: rising, then
more slowly
Visibility: 35 miles, hazy
6-hr Max temp: 74F
6-hr Min temp: 68F
24-hr Precip: 0.00 ins.
BHO SA 1155 CLR 35 181/74/68/1808G14/006/ HAZY/ 51010 10074
20068

10 A.M.
Weather: Clear, few small cumulus
Temperature: 89F; Dew Point: 66F; Relative Humidity: 48%
Wind: SSW @ 12G19 kts
Sea-level pressure: 1017.3 mb; 30.04 in Hg: falling, then more
rapidly
Visibility: 35 miles, hazy
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 35 173/89/66/2212G19/004/ FEW SML CU ALQDS HAZY/
8/100 58008

1 P.M.
Weather: Clear, few small cumulus
Temperature: 95F, Dew point: 64F; Relative Humidity: 37%
Wind: SSW @ 11G20 kts
Sea-level pressure: 1016.4 mb; 30.01 in Hg: falling, then
more slowly
Visibility: 35 miles, hazy
6-hr Max temp: 96F
6-hr Min temp: 74F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 35 164/95/64/2011G20/001/ FEW SML CU ALQDS HAZY/
8/100 56009 10096 20074

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SUMMARY FOR WEDNESDAY, AUGUST 3, 2022

TEMPERATURE (DEGREES F)
MAX…….88   NORMAL…..82
MIN…….68   NORMAL…..64
MEAN……78   NORMAL…..73

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+5
TOTAL DEPARTURE FOR THE MONTH………………..+15 [+4.8 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……..-7
TOTAL HEATING UNITS FOR THE SEASON……………0  DEPARTURE……..-8
TOTAL HEATING UNITS LAST SEASON TO DATE………28  DEPARTURE…….-28

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY……………13  DEPARTURE……..+5
TOTAL COOLING UNITS FOR THE MONTH……………39  DEPARTURE…….+15
TOTAL COOLING UNITS FOR THE SEASON………….546  DEPARTURE……+135
TOTAL COOLING UNITS LAST SEASON TO DATE……..390  DEPARTURE……+156

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….22 NNW @  4:33 A.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..23     @  4:34 A.M.
DAVIS #2 ………………22 S   @  9:05 P.M.
RMY #2 (Instantaneous)…..23 NNW @  4:33 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………………15 S   @  4:34 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15     @  4:34 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………16 S   @  9:06 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..15 NNW @  4:34 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………8.7 NNW [209 total miles] VECTOR #2……………….9.3
DAVIS #2………………..9.1 E
RMY #2………………….9.6 SSE
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 (JULY)…….0.05 DEPARTURE…..-0.34
TOTAL PRECIPITATION FOR THE YEAR…………..21.24 DEPARTURE…..-9.85

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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/+1/0.00/439/49             25 SSW AERO N/A    RMY 26
7/17  89/65/77/+4/0.00/662/74             31 SSW AERO N/A    RMY 33 TSTM
7/18  80/68/74/+1/0.22/009/01             35 SSW AERO N/A    RMY 36
7/19  91/70/81/+8/T/714/80                37 WNW AERO N/A    RMY 38
7/20  96/72/84/+11/0.00/801/90            23 WNW AERO N/A    RMY 23
7/21  92/71/82/+9/0.00/693/78             39 SSW AERO N/A    RMY 41
7/22  94/72/83/+10/0.00/834/94            25 W   AERO N/A    RMY 25
7/23  96/72/84/+11/0.00/850/96            22 W   AERO N/A    RMY 22
7/24  99/73/86/+13/0.00/830/94            39 SW  AERO N/A    RMY 41
7/25  88/74/81/+8/T/291/33                37 SW  AERO N/A    RMY 41
7/26  83/66/75/+2/0.00/615/70             24 W   AERO N/A    RMY 25
7/27  86/61/74/+1/0.00/781/89             21 NW  AERO N/A    RMY 20
7/28  87/67/77/+4/0.04/683/78             35 SSW AERO N/A    RMY 39
7/29  91/70/81/+8/0.01/733/84             34 WSW AERO N/A    RMY 38
7/30  88/69/79/+6/0.02/732/84             35 NW  AERO N/A    RMY 34
7/31  88/64/76/+3/0.00/687/79             23 SW  AERO N/A    RMY 25

DAILY RECORDS

07/24/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 99F,
PREVIOUS RECORD WAS 96F SET IN 1987.

07/24/2022: TIED RECORD HIGH MINIMUM OF 73F, ALSO SET IN 1952

07/25/2022: TIED RECORD HIGH MINIMUM OF 74F, ALSO SET IN 2001

PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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

8/1   85/66/76/+3/0.05/…/..             24 S   AERO N/A    RMY 26
8/2   93/66/80/+7/0.00/…/..             27 WSW AERO N/A    RMY 29
8/3   88/68/78/+5/0.00/…/..             22 NNW AERO N/A    RMY 23

8/4  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 AUGUST 4
HIGH 95F IN 1928, NOW 96F(EST.) IN 2022
LOW 48F IN 1900
PRECIP 1.68 INS IN 1983
PEAK GUST 67 MPH SSE IN 2020 [POST-TROPICAL STORM ISAIAS]

RECORDS FOR AUGUST 5
HIGH 98F IN 1955
LOW 48F IN 1929,1972
PRECIP 2.97 INCHES IN 1893
PEAK GUST 60e MPH SW 1977

TODAY’S REPORT PREPARED BY: Benjamin Turner