Monday, August 22, 2022

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

MONDAY, AUGUST 22, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0459E
SUNSET:  1835E

HUMID BUT COOLER WITH A DECENT RAINFALL DEVELOPING LATE THIS MORNING….

Finally! Some “substantial” rain has fallen here at Blue Hill
(well, substantial compared to the nickels and dimes we’ve seen the
last couple of months). Through the 1pm observation we’ve recorded
0.61″ of rain. This is the biggest rain event since 0.71″ was
measured back on June 9th, more than 2 months ago!

Sunshine of course has been non-existent today with plenty of
cloud cover and at times being stuck in dense fog (essentially
in the clouds). As such temperatures only maxed out in the low
70s for a time during mid-late morning, but has since slid back
to the upper 60s this afternoon with the rainfall. As mentioned
it is quite humid with the dew point holding in the upper 60s.

The wind has been quite light today with an average speed around
7mph so far. A peak gust to only 17 mph has been measured so far.

Of course visibility has been limited today with the rain and fog,
generally under a 1/2 mile, although we did have a period this
morning where visibility did make it to around 20 miles.

The high so far today is 72F, which is 8 degrees below the normal
maximum of 80F. The low since midnight is 64F, which is 2 degrees
above the normal minimum of 62F.

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Today’s Observations:

7 A.M.
Weather: Sky obscured, vertical visibility 200ft
Temperature: 68F; Dew Point: 67F; Relative Humidity: 97%
Wind: E @ 4 kts, wind light
Sea-level pressure: 1017.2 mb; 30.04 in. Hg: falling then rising
Visibility: 1/2 mile, fog
6-hr Max temp: 68F
6-hr Min temp: 65F
24-hr Precip: 0.00 ins.
BHO SA 1155 X W2 1/2F 172/68/67/1004/004/ WND LGT/ 8//// 55006
10068 20065

10 A.M.
Weather: Broken stratus, overcast altostratus
Temperature: 71F; Dew Point: 68F; Relative Humidity: 97%
Wind: ENE @ 6 kts, wind light
Sea-level pressure: 1016.0 mb; 30.00 in Hg: falling, then more rapidly
Visibility: 20 miles, thin fog
3-hr Precip: Trace
BHO SA 1455 E10 BKN 60 OVC 20 160/71/68/0706/000/ THN F ALQDS\
RW-B35E41 VSBY 8 SE-S WND LGT/ 8/62/ 58012 6000/

1 P.M.
Weather: Sky obscured, vertical visibility 300ft, light rain
Temperature: 69F, Dew point: 69F; Relative Humidity: 100%
Wind: ENE @ 4 kts, wind light
Sea-level pressure: 1014.4 mb; 29.96 in Hg: falling, then more slowly
Visibility: 50 miles
6-hr Max temp: 72F
6-hr Min temp: 68F
6-hr Precip: 0.61 ins.
BHO SA 1755 X W3 1/2R-F 144/69/69/0704/996/ WND LGT/ 8//// 56016
6061/ 10072 20068
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SUMMARY FOR SATURDAY, AUGUST 20, 2022

TEMPERATURE (DEGREES F)
MAX…….87   NORMAL…..80
MIN…….65   NORMAL…..62
MEAN……76   NORMAL…..71

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………+5
TOTAL DEPARTURE FOR THE MONTH………………..+90 [+4.1 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……..-5
TOTAL HEATING UNITS FOR THE SEASON……………0  DEPARTURE…….-12
TOTAL HEATING UNITS LAST SEASON TO DATE………28  DEPARTURE…….-28

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY……………11  DEPARTURE……..+4
TOTAL COOLING UNITS FOR THE MONTH…………..240  DEPARTURE…….+87
TOTAL COOLING UNITS FOR THE SEASON………….747  DEPARTURE……+207
TOTAL COOLING UNITS LAST SEASON TO DATE……..557  DEPARTURE……+190

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….26 SSW @  12:12 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..27     @  12:12 P.M.
DAVIS #2 ………………29 S   @  11:56 A.M.
RMY #2 (Instantaneous)…..28 SSW @  11:56 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………………20 SSW @  12:15 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..20     @  11:56 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………22 S   @  11:56 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..20 SSW @  11:56 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………8.8 SSW [211 total miles] VECTOR #2……………….9.5
DAVIS #2………………..9.0 S
RMY #2………………….9.7 S
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…..-0.12
TOTAL PRECIPITATION FOR THE MONTH (JULY)…….0.43 DEPARTURE…..-2.28
TOTAL PRECIPITATION FOR THE YEAR…………..21.62 DEPARTURE….-11.79

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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/…/..                28 ENE AERO N/A    RMY 30
8/17  77/61/69/-3/0.03/…/..             30 ENE AERO N/A    RMY 30
8/18  83/61/72/+1/0.00/…/..             44 NW  AERO N/A    RMY 46
8/19  91/62/77/+6/0.00/…/..             25 WNW AERO N/A    RMY 25
8/20  94/69/82/+11/0.00/…/..            30 SSW AERO N/A    RMY 32
8/21  87/65/76/+5/0.00/…/..             26 SSW AERO N/A    RMY 28

8/22  The low since midnight is 64F, the daily normal low is 62F

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 AUGUST 22
HIGH 90F IN 1939
LOW 42F IN 1894
PRECIP 2.28 INCHES IN 1935
PEAK GUST 47 MPH ESE IN 2021 [TROPICAL STORM HENRI]

RECORDS FOR AUGUST 23
HIGH 89F IN 2020
LOW 45F IN 1923
PRECIP 2.21 INCHES IN 2020
PEAK GUST 60e MPH NW IN 1940, 60 WNW IN 2020* [*THUNDERSTORM]

TODAY’S REPORT PREPARED BY: Matt Douglas, Caleb Kohane