Thursday, September 1, 2022

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

THURSDAY, SEPTEMBER 1, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0508E
SUNSET:  1818E

GORGEOUS, FALL-LIKE WEATHER ATOP GREAT BLUE HILL….

Today featured incredibly pleasant weather with dew points
dropping into the mid 40’s and a cool westerly breeze. Wind
is almost 20 mph on average with the highest gust around 30 mph
so far.

Skies are partly cloudy and visibility increased from 70 miles
this morning to 80 miles by the 1 P.M. observation. This is
weather typical for fall to start off the first day of
meteorological fall.

The summit continues to have a rainfall deficit, with
1.41″ below normal for August, and an annual deficit of 10.92″!
Most of the Boston area remains under extreme drought conditions.
But the drought has eased up a bit to our south and east.

August 2022 will go down as the 2nd warmest on record here at Blue
Hill. Here is the rankings list going back to 1885!

BHO Highest August 24-Hour Adjusted Mean Temperature, deg F (1885-2022):

1) 74.1 in 2016
2) 73.9 in 2022
3) 73.4 in 2018
4) 72.6 in 2012
72.6 in 2021
6) 72.5 in 1988
7) 72.4 in 2015

The summer season (Jun-Aug) will go down as the 8th driest on record
with only 6.00 inches measured for the 3 month period.

BHO Lowest Summer (Jun-Aug) Precipitation, inches (1886-2022):

1) 3.48 in 1949
2) 3.54 in 1957
3) 4.90 in 2016
4) 5.24 in 1965
5) 5.43 in 1964
6) 5.45 in 1997
7) 5.56 in 1993
8) 6.00 in 2022
9) 6.11 in 1894
10) 6.25 in 1907

Above stats provided by our Chief Scientist Mike Iacono.

Records section below was prepared by Matt Douglas!

The high so far today is 78F, which is the same as the normal
maximum. The low since midnight is 61F, which is a degree
above the normal minimum of 60F.

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PRELIMINARY STATS FOR AUGUST 2022

TEMPERATURE, Deg. F
Avg. Max. 85.8 [+5.6] Avg. Min. 65.0 [+2.4] Mean      75.4 [+4.0] 24-hour corrected mean: 73.9

Max. for month: 97F on the 8th and 9th
Min. for month: 58F on the 13th and 14th

HEATING DEGREE DAYS
Total heating units:      0 [-011] Total for the season:     0 [-018] Total for last season:   28

COOLING DEGREE DAYS
Total cooling units:    329 [+120] Total for the season:   836 [+240] Total for last season:  652

PRECIPITATION, Inches
Total: 2.39 [-1.52] Greatest in 24 hrs: 0.71 on the 26th

WIND, mph
Avg. uncorrected wind speed:  9.3 mph
Avg. corrected wind speed:   10.0 mph
Prevailing wind direction:    SW [15%] Peak gust and direction:  44 NW on the 18th

SUNSHINE:
Campbell-Stokes card minutes: N/a
Astronomical total minutes: N/a

MFD

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Today’s Observations:

7 A.M.
Weather: Clear, few altocumulus offshore NE-SE
Temperature: 65F; Dew Point: 55F; Relative Humidity: 69%
Wind: W @ 10G14 kts
Sea-level pressure: 1011.1 mb; 29.86 in. Hg: rising, then more
slowly
Visibility: 70 miles
6-hr Max temp: 65F
6-hr Min temp: 61F
24-hr Precip: 0.00 ins.
BHO SA 1155 CLR 70 111/65/55/2710G14/986/ FEW AC OFFSHR NE-SE/
8/080 51010 10065 20061

10 A.M.
Weather: Scattered cumulus and cirrus
Temperature: 74F; Dew Point: 52F; Relative Humidity: 46%
Wind: WNW @ 14G25 kts
Sea-level pressure: 1007.0 mb; 29.74 in Hg: rising unsteadily
Visibility: 75 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 30 SCT 250 SCT 75 115/74/52/3014G25/987/ 8/202 52004

1 P.M.
Weather: Scattered cumulus and cirrus
Temperature: 77F, Dew point: 46F; Relative Humidity: 33%
Wind: NW @ 17G23 kts
Sea-level pressure: 1012.5 mb; 29.90 in Hg: rising then steady
Visibility: 80 miles
6-hr Max temp: 78F
6-hr Min temp: 65F
6-hr Precip: 0.00 ins.
BHO SA 1755 40 SCT 250 -SCT 80 125/77/46/3117G23/990/ 8/101
53010 10078 20065

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SUMMARY FOR WEDNESDAY, AUGUST 31, 2022

TEMPERATURE (DEGREES F)
MAX…….83   NORMAL…..78
MIN…….65   NORMAL…..61
MEAN……74   NORMAL…..69

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………+5
TOTAL DEPARTURE FOR THE MONTH………………..+128 [+3.9 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…….-11
TOTAL HEATING UNITS FOR THE SEASON……………0  DEPARTURE…….-18
TOTAL HEATING UNITS LAST SEASON TO DATE………28  DEPARTURE…….-28

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….9  DEPARTURE……..+4
TOTAL COOLING UNITS FOR THE MONTH…………..329  DEPARTURE……+120
TOTAL COOLING UNITS FOR THE SEASON………….836  DEPARTURE……+240
TOTAL COOLING UNITS LAST SEASON TO DATE……..652  DEPARTURE……+184

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….33 WNW @  4:08 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..35     @  4:08 P.M.
DAVIS #2 ………………31 W   @  2:03 P.M.
RMY #2 (Instantaneous)…..33 WNW @  4:08 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………………23 WNW @  4:09 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..24     @  4:09 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………24 WNW @  4:09 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..24 WNW @  4:09 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………10.7 WNW  [257 total miles] VECTOR #2……………….11.6
DAVIS #2………………..11.6 W
RMY #2………………….11.6 W
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 (JULY)…….2.39 DEPARTURE…..-1.52
TOTAL PRECIPITATION FOR THE YEAR…………..23.58 DEPARTURE….-11.03

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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/+3/0.05/494/57             24 S   AERO N/A    RMY 26
8/2   93/66/80/+7/0.00/588/68             27 WSW AERO N/A    RMY 29
8/3   88/68/78/+5/0.00/836/97             22 NNW AERO N/A    RMY 23
8/4   96/68/82/+9/0.00/808/94             29 SSW AERO N/A    RMY 31
8/5   96/72/84/+11/0.01/438/51            42 NW  AERO N/A    RMY 42 TSTM
8/6   95/72/84/+11/0.00/822/96            30 SSW AERO N/A    RMY 31
8/7   96/73/85/+12/0.08/589/69            36 SW  AERO N/A    RMY 38 TSTM
8/8   97/75/86/+14/T/740/87               37 WSW AERO N/A    RMY 39
8/9   97/63/80/+8/0.23/365/43             33 NW  AERO N/A    RMY 34 TSTM
8/10  76/62/69/-3/0.03/347/41             22 NE  AERO N/A    RMY 22
8/11  79/65/72/0/T/160/19                 18 SSW AERO N/A    RMY 18
8/12  83/63/73/+1/0.00/698/83             21 NW  AERO N/A    RMY 22
8/13  77/58/68/-4/0.00/512/61             20 NE  AERO N/A    RMY 19
8/14  84/58/71/-1/0.00/661/79             24 SSE AERO N/A    RMY 24
8/15  83/61/72/0/0.00/726/87              21 ENE AERO N/A    RMY 21
8/16  77/61/69/-3/T/566/68                28 ENE AERO N/A    RMY 30
8/17  77/61/69/-3/0.03/182/22             30 ENE AERO N/A    RMY 30
8/18  83/61/72/+1/0.00/661/80             44 NW  AERO N/A    RMY 46
8/19  91/62/77/+6/0.00/807/98             25 WNW AERO N/A    RMY 25
8/20  94/69/82/+11/0.00/411/50            30 SSW AERO N/A    RMY 32
8/21  87/65/76/+5/0.00/589/72             26 SSW AERO N/A    RMY 28
8/22  72/64/68/-3/0.80/000/00             17 E   AERO N/A    RMY 17
8/23  74/65/70/-1/0.06/024/03             21 ESE AERO N/A    RMY 21 TSTM
8/24  87/63/75/+4/0.00/583/72             19 WNW AERO N/A    RMY 18
8/25  88/67/78/+8/0.00/590/73             23 S   AERO N/A    RMY 23
8/26  88/65/77/+7/0.71/483/60             40 WNW AERO N/A    RMY 42 TSTM
8/27  78/64/71/+1/0.00/569/71             20 N   AERO N/A    RMY 20
8/28  80/63/72/+2/0.00/583/73             22 SSE AERO N/A    RMY 22
8/29  88/61/75/+5/0.00/662/83             30 SSW AERO N/A    RMY 31
8/30  89/69/79/+10/0.00/…/..            34 S   AERO N/A    RMY 35
8/31  83/65/74/+5/0.39/…/..             33 WNW AERO N/A    RMY 33 TSTM

9/1   The low since midnight is 61F, the daily normal low is 60F

DAILY RECORDS

08/04/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 96F,
PREVIOUS RECORD WAS 95F SET IN 1928.

08/06/2022: TIED RECORD HIGH MAXIMUM OF 95F, ALSO SET IN 1931
TIED RECORD HIGH MINIMUM OF 72F, ALSO SET IN 1918 AND 1924

08/07/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 96F,
PREVIOUS RECORD WAS 95F SET IN 1924
TIED RECORD HIGH MINIMUM OF 73F, ALSO SET IN 2018

08/08/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 97F,
PREVIOUS RECORD WAS 93F SET IN 1909 AND 1949
NEW HIGH MINIMUM TEMPERATURE RECORD OF 75F,
PREVIOUS RECORD WAS 74F SET IN 2001

08/20/2022: NEW HIGH MAXIMUM TEMPERATURE RECORD OF 94F,
PREVIOUS RECORD WAS 93F SET IN 1937

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

RECORDS FOR SEPTEMBER 1
HIGH 93F IN 1969, 2010
LOW 47F IN 1975, 2017
PRECIP 2.32 INCHES IN 2013
PEAK GUST 59e MPH S IN 1945, SSW IN 1965

RECORDS FOR SEPTEMBER 2
HIGH 99F IN 1953 (SEPTEMBER MAXIMUM RECORD)
LOW 44F IN 1909
PRECIP 2.73 INCHES IN 1947
PEAK GUST 55e MPH WNW IN 1944

TODAY’S REPORT PREPARED BY: Benjamin Turner