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Thursday, April 28, 2022

April 28, 2022

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA THURSDAY, APRIL 28, 2022 ALL TIMES ARE…

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

THURSDAY, APRIL 28, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0444E
SUNSET:  1840E

WINDY AGAIN AND CHILLY WITH GREAT VISIBILITY….

Today was mostly cloudy with some breaks of sunshine mostly
in the morning hours. Wind has been active again today, with
average speeds in upper teens and frequent gusts of 30 mph.
Wind chill is quite the factor today as dew points remain
in the mid 20’s and temperatures have barely hit 50F.

Visibility was great today at 80 miles on average.

The high so far today is 50F, which is 12 degrees below the
normal maximum of 62F. The low since midnight is 35F, which
is 8 degrees lower than the normal minimum of 43F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few altocumulus and cirrostratus
Temperature: 38F; Dew Point: 23F; Relative Humidity: 53%
Wind: NW @ 23G33 kts, peak of 44 mph NW at 6:33 A.M.
Sea-level pressure: 1010.4 mb; 29.84 in. Hg: rising, then
more slowly
Visibility: 80 miles
6-hr Max temp: 38F
6-hr Min temp: 35F
24-hr Precip:  Trace
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 CLR 80 104/38/23/3323G33/984/ FEW AC/CS ALQDS PK
WND 3138/33/ 8/055 51012 70000 10038 20035

10 A.M.
Weather: Scattered stratocumulus, broken altocumulus and
cirrostratus
Temperature: 50F; Dew Point: 39F; Relative Humidity: 64%
Wind: NW @ 20G28 kts, peak of 38 mph NW @ 9:51 A.M.
Sea-level pressure: 1010.3 mb; 29.83 in Hg: rising then falling
Visibility: 80 miles
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 70 BKN 250 BKN 80 103/45/25/3220G28/983/ PK WND
3133/51/ 8/055 58001

1 P.M.
Weather: Broken altocumulus and cirrostratus
Temperature: 49F, Dew point: 25F; Relative Humidity: 38%
Wind: NW @ 10G30 kts, peak of 35 mph NW at 12:28 P.M.
Sea-level pressure: 1009.3 mb; 29.80 in Hg: falling, then
more slowly
Visibility: 80 miles
6-hr Max temp: 50F
6-hr Min temp: 38F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 70 BKN 250 BKN 80 093/49/25/3310G30/980/ PK WND 3330/28/
8/055 56010 10050 20038

————————————————————–

SUMMARY FOR WEDNESDAY, APRIL 27, 2022

TEMPERATURE (DEGREES F)
MAX…….56     NORMAL…..61
MIN…….39     NORMAL…..42
MEAN……48     NORMAL…..52

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….-4
TOTAL DEPARTURE FOR THE MONTH………………+57 [+1.9 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY………….17  DEPARTURE……..+4
TOTAL HEATING UNITS FOR THE MONTH…………441  DEPARTURE…….-61
TOTAL HEATING UNITS FOR THE SEASON……….5304  DEPARTURE……-545
TOTAL HEATING UNITS LAST SEASON TO DATE…..5301  DEPARTURE……..+3

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)…….48 NW  @  9:05 P.M.
AEROVANE……………….47 NW  @  9:03 P.M.
VECTOR #2 (Instantaneous)..51     @  9:05 P.M.
DAVIS #2 ………………44 WNW @  4:30 P.M.
RMY #2 (Instantaneous)…..48 NW  @  9:05 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………………30 WNW @  2:44 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..32     @  9:06 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………31 WNW @  4:30 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..31 NW  @  9:06 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…….. 15.9 WNW [382 total miles] VECTOR #2……………… 16.2
DAVIS #2………………. 16.1 NW
RMY #2………………… 16.0 NW
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………….2.97  DEPARTURE…..-1.37
TOTAL PRECIPITATION FOR THE YEAR………….16.28  DEPARTURE…..-2.08

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-1.0
TOTAL SNOWFALL FOR THE MONTH……………..TRACE  DEPARTURE……-2.8
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.7  DEPARTURE……+1.0

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  54/42/48/-4/…./0.0/…/..         20 SSW AERO 18 S   RMY 21
4/27  56/39/48/-4/…./0.0/…/..         48 NW  AERO 47 NW  RMY 48

4/28  The low since midnight is 35F, the daily normal low is 43F

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

RECORDS FOR APRIL 28
HIGH 92 IN 1990, 2009
LOW 26 IN 1947
PRECIP 2.41 IN 1904
SNOWFALL 10.0 IN. IN 1987
PEAK GUST 69 MPH NE 1967

RECORDS FOR APRIL 29
HIGH 85 IN 1974
LOW 26 IN 1909
PRECIP 1.65 IN 1923
SNOWFALL 1.0 IN. IN 1987
PEAK GUST 55 MPH WNW IN 2010

TODAY’S REPORT PREPARED BY: Benjamin Turner

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Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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