Tuesday, April 26, 2022

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

TUESDAY, APRIL 26, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0446E
SUNSET:  1838E

OVERCAST AND COOL WITH PERIODS OF DRIZZLE DEVELOPING….

Overcast skies have been the theme today with no sunshine being
recorded. Periods of drizzle began mid morning and has continued
off and on into the afternoon hours. So far only a trace has
fallen.

Temperatures are once again on the cooler side with highs so
far in the low to mid 50s. The normal high for today is 61F.

The wind has been light southerly today only averaging around
10mph for the day. The peak gust so far has been 20mph.

Visibility started the day fair averaging around 50 miles, but
has diminished with the onset of drizzle and fog.

The high so far today is 53F, which is 8 degrees below the
normal maximum of 61F. The low since midnight is 42F, which
is equal to the normal minimum of 42F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Overcast stratus, few stratus fractus all quadrants
Temperature: 45F; Dew Point: 42F; Relative Humidity: 89%
Wind: S @ 6 kts, wind light
Sea-level pressure: 1021.4 mb; 30.16 in. Hg: falling, then more slowly
Visibility: 50 miles
6-hr Max temp: 45F
6-hr Min temp: 42F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 E40 OVC 50 214/45/42/1806/016/ FEW STFRA ALQDS WND LGT/
8/5// 56003 10045 20042

10 A.M.
Weather: Overcast stratus, light drizzle
Temperature: 49F; Dew Point: 45F; Relative Humidity: 85%
Wind: S @ 6 kts, wind light
Sea-level pressure: 1020.0 mb; 30.12 in Hg: falling, then more rapidly
Visibility: 6 miles, fog
3-hr Precip: Trace
3-hr Snowfall: 0.0 ins.
BHO SA 1455 E20 OVC 6L-F 200/49/45/1806/012/ L-B03 WND LGT/ 8/6//
58014 6000/

1 P.M.
Weather: Overcast stratus
Temperature: 52F, Dew point: 46F; Relative Humidity: 79%
Wind: SSW @ 8 kts
Sea-level pressure: 1018.3 mb; 30.07 in Hg: falling, then more slowly
Visibility: 15 miles, thin fog
6-hr Max temp: 53F
6-hr Min temp: 45F
6-hr Precip: Trace
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 E20 OVC 15 183/52/46/2008/007/ THN F ALQDS L-E08/ 8/6//
56017 6000/ 10053 20045

————————————————————–

SUMMARY FOR MONDAY, APRIL 25, 2022

TEMPERATURE (DEGREES F)
MAX…….59     NORMAL…..61
MIN…….41     NORMAL…..42
MEAN……50     NORMAL…..51

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….-1
TOTAL DEPARTURE FOR THE MONTH………………+65 [+2.4 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…………407  DEPARTURE…….-68
TOTAL HEATING UNITS FOR THE SEASON……….5270  DEPARTURE……-552
TOTAL HEATING UNITS LAST SEASON TO DATE…..5272  DEPARTURE……..-2

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……..-2
TOTAL COOLING UNITS FOR THE SEASON………….0  DEPARTURE……..-2
TOTAL COOLING UNITS LAST SEASON TO DATE……..0  DEPARTURE………0

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….22 S   @ 11:08 P.M.
AEROVANE……………….21 S   @ 10:59 P.M.
VECTOR #2 (Instantaneous)..24     @ 11:08 P.M.
DAVIS #2 ………………26 S   @ 10:15 P.M.
RMY #2 (Instantaneous)…..23 S   @ 11:08 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………………16 SE  @  7:10 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16     @ 11:09 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………19 S   @ 11:00 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 SSW @ 11:09 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…….. 8.1 ENE [195 total miles] VECTOR #2……………… 8.8
DAVIS #2………………. 8.7 SE
RMY #2………………… 8.8 ESE
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…..-0.14
TOTAL PRECIPITATION FOR THE MONTH………….2.67  DEPARTURE…..-1.37
TOTAL PRECIPITATION FOR THE YEAR………….15.98  DEPARTURE…..-2.08

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE…… 0.0
TOTAL SNOWFALL FOR THE MONTH……………..TRACE  DEPARTURE……-2.7
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.7  DEPARTURE……+1.1

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/-2/0.96/0.0/325/40         55 S   AERO 53 S   RMY 58
4/20  56/37/47/-2/0.00/0.0/808/99         40 WNW AERO 37 WNW RMY 41
4/21  60/40/50/0/T/0.0/541/66             45 SSW AERO 41 SSW RMY 47
4/22  65/46/56/+6/0.00/0.0/699/85         39 WNW AERO 35 WNW RMY 39
4/23  66/40/53/+3/0.00.0.0/577/70         24 NW  AERO 22 W   RMY 25
4/24  50/40/45/-6/T/0.0/165/20            29 ENE AERO 26 ENE RMY 30
4/25  59/41/50/-1/0.00/0.0/464/56         22 S   AERO 21 S   RMY 23

4/26  The low since midnight is 42F, the daily normal low is 42F

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

RECORDS FOR APRIL 26
HIGH 88 IN 2009
LOW 23 IN 1919
PRECIP 1.64 IN. IN 1931
SNOWFALL 1.0 IN. IN 2000
PEAK GUST 53 MPH SSW IN 1996

RECORDS FOR APRIL 27
HIGH 93 IN 1990
LOW 28 IN 1919
PRECIP 1.89 IN 1979
SNOWFALL 2.7 IN. IN 1993
PEAK GUST 65e MPH N IN 1941

TODAY’S REPORT PREPARED BY: Matt Douglas