Friday, April 22, 2022

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

FRIDAY, APRIL 22, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0452E
SUNSET:  1834E

HAPPY EARTH DAY – ANOTHER SUNNY, ABOVE AVERAGE DAY…AND
YES, WINDY TOO!

While yesterday was gusty out of the south, today is once
again windy – this time out of the NW averaging 15 MPH.
Gusts over 30 MPH have been frequent. Thankfully temperatures
have found their way into the mid-60s under mostly sunny skies
making the wind a bit more tolerable. With the abundant sunshine,
stiff winds, and very dry air, there is an elevated fire danger
today.

Visibility is excellent with an average of about 80 miles.

The high so far today is 65F, which is 6 degrees above the
normal maximum of 59F. The low since midnight is 46F, which
is 5 degrees above the normal minimum of 41F.

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Today’s Observations:

7 A.M.
Weather: Broken Stratocumulus (clearing in the distance all quads)
Temperature: 49F; Dew Point: 43F; Relative Humidity: 79%
Wind: W @ 10G17 kts
Sea-level pressure: 1025.1b; 30.27 in. Hg: Rising unsteadily
Visibility: 75 miles (hazy)
6-hr Max temp: 49F
6-hr Min temp: 46F
24-hr Precip:  TRACE
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 60 BKN 75 251/49/43/2610G17/027/ CLRNG DSNT ALQDS HAZY/
8/500 52013 6000/ 70000 10049 20046

10 A.M.
Weather: Scattered Stratocumulus
Temperature: 60F; Dew Point: 35F; Relative Humidity: 38%
Wind: W @ 17G30 kts
Peak Wind: 34 MPH (30 kts) W @ 9:55 AM
Sea-level pressure: 1024.4mb; 30.25 in Hg: Falling unsteadily
Visibility: 80 miles
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 60 SCT 80 244/60/35/3017G30/025/ PK WND 3030/55/ 8/500 57007

1 P.M.
Weather: Scattered Stratocumulus
Temperature: 63F, Dew point: 21F; Relative Humidity: 29%
Wind: NNW @ 13G30 kts
Peak Wind: 35 mph (30 kts) NW at 12:50 P.M.
Sea-level pressure: 1024.6mb; 30.26 in Hg: Falling, then rising
Visibility: 80 miles
6-hr Max temp: 65F
6-hr Min temp: 49F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 60 SCT 80 246/63/31/3313G30/026/ PK WND 3230/50/ 8/500
50002 10065 20049

————————————————————–

SUMMARY FOR THURSDAY, APRIL 21, 2022

TEMPERATURE (DEGREES F)
MAX…….60     NORMAL…..59
MIN…….40     NORMAL…..40
MEAN……50     NORMAL…..50

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..0
TOTAL DEPARTURE FOR THE MONTH………………+63 [+2.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY………….15  DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE MONTH…………351  DEPARTURE…….-66
TOTAL HEATING UNITS FOR THE SEASON……….5214  DEPARTURE……-549
TOTAL HEATING UNITS LAST SEASON TO DATE…..5199  DEPARTURE…….+15

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………..0  DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………..0  DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE SEASON………….0  DEPARTURE……..-1
TOTAL COOLING UNITS LAST SEASON TO DATE……..0  DEPARTURE………0

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….45 SSW @  1:51 P.M.
AEROVANE……………….41 SSW @  3:39 P.M.
VECTOR #2 (Instantaneous)..51     @  1:51 P.M.
DAVIS #2 ………………48 S   @  1:45 P.M.
RMY #2 (Instantaneous)…..47 SSW @  1:51 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………………33 SSW @  1:53 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..33     @  1:53 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………33 S   @  2:34 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..34 SSW @  1:53 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……..16.7 S [400 total miles] VECTOR #2………………16.8
DAVIS #2……………….16.7 S
RMY #2…………………16.9 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……TRACE  DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH………….2.67  DEPARTURE…..-0.79
TOTAL PRECIPITATION FOR THE YEAR………….15.98  DEPARTURE…..-1.50

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH……………..TRACE  DEPARTURE……-2.6
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.7  DEPARTURE……+1.2

PRELIMINARY CLIMATE SUMMARY FOR APRIL CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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

4/01  57/35/46/+5/0.41/0.0/183/24         56 WNW AERO 55 WNW RMY 58
4/02  52/34/43/+2/0.00/0.0/697/91         45 WNW AERO 43 WNW RMY 47
4/03  51/36/44/+2/0.03/0.0/215/28         23 NE  AERO 18 NE  RMY 23
4/04  56/35/46/+4/0.02/0.0/610/79         35 NW  AERO 30 NW  RMY 34
4/05  62/37/50/+7/0.00/0.0/698/90         25 SSW AERO 24 S   RMY 25
4/06  44/39/42/-1/0.22/0.0/000/00         33 ENE AERO 32 E   RMY 34
4/07  52/38/45/+1/0.06/0.0/000/00         50 ESE AERO 50 ESE RMY 53
4/08  61/42/52/+8/0.24/0.0/470/60         45 ESE AERO 45 SE  RMY 47 TSTM
4/09  59/39/49/+5/0.10/0.0/291/37         40 S   AERO 40 S   RMY 43
4/10  55/35/45/0/T/0.0/560/71             35 NW  AERO 32 NW  RMY 34
4/11  62/35/49/+4/T/0.0/728/92            31 NNW AERO 30 NNW RMY 31
4/12  68/46/57/+11/0.06/0.0/349/44        32 W   AERO 30 W   RMY 31
4/13  71/47/59/+13/0.00/0.0/670/84        33 S   AERO 31 S   RMY 35
4/14  50/43/47/0/0.16/0.0/000/00          19 N   AERO 18 N   RMY 18
4/15  66/43/55/+8/T/0.0/691/86            37 S   AERO 37 S   RMY 39
4/16  70/40/55/+8/0.40/0.0/314/39         42 S   AERO 53 SSW RMY 45
4/17  48/36/42/-6/0.01/T/461/57           38 N   AERO 36 N   RMY 39
4/18  55/32/44/-4/0.00/0.0/616/76         35 E   AERO 30 E   RMY 34
4/19  55/39/47/-2/0.96/0.0/…/..         55 S   AERO 53 S   RMY 58
4/20  56/37/47/-2/0.00/0.0/…/..         40 WNW AERO 37 WNW RMY 41
4/21  60/40/50/0/0.00/0.0/…/..          45 SSW AERO 41 SSW RMY 47

4/22  The low since midnight is 46F, the daily normal low is 41F

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

RECORDS FOR APRIL 22
HIGH 85 IN 1977, 2001
LOW 26 IN 1981
PRECIP 2.60 IN. IN 2019
SNOWFALL 3.0 IN. IN 1940
PEAK GUST 68e MPH NW IN 1945

RECORDS FOR APRIL 23
HIGH 85 IN 1908, 2007
LOW 25 IN 1933,1989
PRECIP 1.99 IN. IN 2012
SNOWFALL 0.5 IN. IN 1911, 1956
PEAK GUST 64 MPH WNW IN 1962

TODAY’S REPORT PREPARED BY: Andrew Swanson