Sunday, April 17, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, APRIL 17, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0500E
SUNSET: 1828E
MOSTLY CLOUDY AND CHILLY WITH SOME WINTRY PRECIP
IN THE AFTERNOON HOURS….
We observed mostly cloudy conditions today after
0.41 inches of rain fell overnight. We had a chilly
northwesterly wind with an average speed of 15 mph
and a max gust so far today of almost 30 mph.
Visibility was 65 miles on average. Showers of ice
pellets were observed to start right before the
1 P.M. observation. They left only a trace.
Since we’re on the topic of precipitation, we are still
an inch under normal this month and almost 2 inches under
normal for rainfall this year.
Snowfall deficit this month is 2.3 inches, with the
seasonal total still exceeding the normal amount by
1.5 inches.
The high so far today is 47F, which is 10 degrees below the
normal maximum of 57F. The low since midnight is 36F, which
is 3 degrees below the normal minimum of 39F.
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Today’s Observations:
7 A.M.
Weather: Clear, few stratus fractus
Temperature: 39F; Dew Point: 35F; Relative Humidity: 84%
Wind: NW @ 8G13 kts
Sea-level pressure: 1013.4 mb; 29.93 in. Hg: rising steadily
Visibility: 65 miles
6-hr Max temp: 39F
6-hr Min temp: 36F
24-hr Precip: 0.41 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 CLR 65 134/39/35/3208G13/993/ FEW STFRA ALQDS/ 8/600
52015 70041 10039 20036
10 A.M.
Weather: Broken cumulus
Temperature: 45F; Dew Point: 28F; Relative Humidity: 51%
Wind: WNW @ 12G20 kts
Sea-level pressure: 1014.7 mb; 29.97 in Hg: rising, then more
slowly
Visibility: 70 miles
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 60 BKN 70 147/45/28/3012G20/997/ 8/200 51013
1 P.M.
Weather: Overcast altocumulus and altostratus, light ice
pellets beginning at 12:45 P.M.
Temperature: 40F, Dew point: 28F; Relative Humidity: 61%
Wind: NNW @ 12G22 kts
Sea-level pressure: 1013.1 mb; 29.92 in Hg: falling, then
more rapidly
Visibility: 60 miles, except 20 miles W-NW due to virga
6-hr Max temp: 47F
6-hr Min temp: 39F
6-hr Precip: Trace
6-hr Snowfall: Trace
Snow Depth: 0 ins.
BHO SA 1755 70 OVC 60IP- 131/40/28/3412G22/992/ IP-B40 VSBY
20 W-NW VIRGA W-NW NEW SNW PST 6 HRS TRACE/ 8/07/ 58016 6000/
10047 20039
————————————————————–
SUMMARY FOR SATURDAY, APRIL 16, 2022
TEMPERATURE (DEGREES F)
MAX…….70 NORMAL…..57
MIN…….40 NORMAL…..38
MEAN……55 NORMAL…..47
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….+8
TOTAL DEPARTURE FOR THE MONTH………………+77 [+4.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY………….10 DEPARTURE……..-8
TOTAL HEATING UNITS FOR THE MONTH…………256 DEPARTURE…….-79
TOTAL HEATING UNITS FOR THE SEASON……….5119 DEPARTURE……-562
TOTAL HEATING UNITS LAST SEASON TO DATE…..5127 DEPARTURE……..-8
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)…….42 S @ 3:32 P.M.
AEROVANE……………….53 SSW @ 5:34 P.M.
VECTOR #2 (Instantaneous)..45 @ 7:17 P.M.
DAVIS #2 ………………49 S @ 3:45 P.M.
RMY #2 (Instantaneous)…..45 S @ 3:29 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………………32 NNW @ 7:19 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..31 @ 3:40 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………34 S @ 3:40 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..32 S @ 3:40 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……..18.8 SSW [450 total miles]
VECTOR #2………………18.9
DAVIS #2……………….18.5 SW
RMY #2…………………19.0 SW
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…….0.41 DEPARTURE…..+0.26
TOTAL PRECIPITATION FOR THE MONTH………….1.71 DEPARTURE…..-1.02
TOTAL PRECIPITATION FOR THE YEAR………….15.02 DEPARTURE…..-1.73
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0 DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH……………….0.0 DEPARTURE……-2.3
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.7 DEPARTURE……+1.5
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/…/.. 32 W AERO 30 W RMY 31
4/13 71/47/59/+13/0.00/0.0/…/.. 33 S AERO 31 S RMY 35
4/14 50/43/47/0/…/0.0/…/.. 19 N AERO 18 N RMY 18
4/15 66/43/55/+8/…./0.0/…/.. 37 S AERO 37 S RMY 39
4/16 70/40/55/+8/…./0.0/…/… 42 S AERO 53 SSW RMY 45
4/17 The low since midnight is 36F, the daily normal low is 39F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR APRIL 17
HIGH 93 IN 2002
LOW 21 IN 1908
PRECIP 1.68 IN 1954
SNOWFALL 1.0 IN. IN 1899
PEAK GUST 63 MPH ESE IN 2011
RECORDS FOR APRIL 18
HIGH 92 IN 1976
LOW 23 1887
PRECIP 1.48 IN 1954
SNOWFALL 4.3 IN. IN 2020
PEAK GUST 59 MPH S IN 1982
TODAY’S REPORT PREPARED BY: Benjamin Turner
