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Saturday, April 2, 2022

April 2, 2022

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SATURDAY, APRIL 2, 2022 ALL TIMES ARE…

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

SATURDAY, APRIL 2, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0525E
SUNSET:  1811E

FAIR WEATHER WITH SOME WIND AS THE WEATHER IMPROVES….

Since 7 A.M. yesterday, another 0.18 inches of precipitation
was measured. Following that, we have seen an excellent
average visibility of 85 miles and partly cloudy skies.
Conditions are dry with dew points in the low 20’s. This
indicates a change in air mass since yesterday.

Wind is, once again, the main feature of the day. The
average speed is 20 mph with the highest gust so far today
at almost 50 mph. The cool, westerly breeze keeps the region
seasonable in regard to daytime highs and lows.

The high so far today is 50F, which is the same as the
normal maximum. The low since midnight is 34F, which is
a degree above the normal minimum of 33F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Scattered stratocumulus
Temperature: 55F; Dew Point: 21F; Relative Humidity: 56%
Wind: NNW @ 13G23 kts
Sea-level pressure: 1013.0 mb; 29.91 in. Hg: rising, then
more rapidly
Visibility: 85 miles
6-hr Max temp: 35F
6-hr Min temp: 34F
24-hr Precip:  0.18 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 40 SCT 85 130/35/21/3413G23/991/ 8/500 53036 70018
10035 20034

10 A.M.
Weather: Clear, few distant cumulus NE-E
Temperature: 42F; Dew Point: 21F; Relative Humidity: 42%
Wind: WNW @ 19G30 kts, peak of 32 mph WNW at 9:27 A.M.
Sea-level pressure: 1014.2 mb; 29.95 in Hg: Rising, then more
slowly
Visibility: 85 miles
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 CLR 85 142/42/21/3019G30/995/ FEW CU DSNT OFFSHR NE-E
PK WND 3028/27/ 8/100 51012

1 P.M.
Weather: Clear, few distant altocumulus
Temperature: 48F, Dew point: 18F; Relative Humidity: 29%
Wind: WNW @ 10G20 kts
Sea-level pressure: 1014.0 mb; 29.94 in Hg: falling, then
more slowly
Visibility: 85 miles
6-hr Max temp: 50F
6-hr Min temp: 35F
6-hr Precip:  0.00 ins
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 CLR 85 140/48/18/3010G20/994/ FEW AC DSNT ALQDS/
8/050 56002 10050 20035

————————————————————–

SUMMARY FOR FRIDAY, APRIL 1, 2022

TEMPERATURE (DEGREES F)
MAX…….57     NORMAL…..50
MIN…….35     NORMAL…..32
MEAN……46     NORMAL…..41

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….+5
TOTAL DEPARTURE FOR THE MONTH……………….+5 [+4.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………19  DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE MONTH……………19  DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE SEASON…………4882  DEPARTURE……-489
TOTAL HEATING UNITS LAST SEASON TO DATE…….4844  DEPARTURE…….+38

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….56 WNW @  7:55 P.M.
AEROVANE……………….55 WNW @  7:54 P.M.
VECTOR #2 (Instantaneous)..62     @  7:55 P.M.
DAVIS #2 ………………49 W   @  7:55 P.M.
RMY #2 (Instantaneous)…..58 WNW @  7:55 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………………35 WNW @  9:56 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..37     @  9:56 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………38 WNW @  9:56 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..37 WNW @  9:56 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…….15.8 WNW [379 total miles] VECTOR #2……………..16.3
DAVIS #2………………16.2 WNW
RMY #2………………..15.8 W
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…….0.18  DEPARTURE…..+0.02
TOTAL PRECIPITATION FOR THE MONTH………….0.83  DEPARTURE…..+0.67
TOTAL PRECIPITATION FOR THE YEAR………….13.72  DEPARTURE…..-0.28

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.2
TOTAL SNOWFALL FOR THE MONTH……………….0.0  DEPARTURE……-0.2
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.7  DEPARTURE……+3.9

PRELIMINARY CLIMATE SUMMARY FOR MARCH 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

3/01  37/15/26/-5/0.08/T/128/19           36 S   AERO 36 S   RMY 37
3/02  43/31/37/+5/0.01/0.0/609/90         29 W   AERO 25 SW  RMY 29
3/03  38/17/28/-4/0.16/T/518/76           40 NNW AERO 35 NW  RMY 40
3/04  34/10/22/-10/0.00/0.0/669/98        31 NW  AERO 28 NW  RMY 31
3/05  39/18/29/-3/0.00/0.0/508/74         24 S   AERO 21 S   RMY 25
3/06  63/35/49/+16/0.01/0.0/186/27        53 SW  AERO 53 WSW RMY 56
3/07  62/47/55/+22/0.08/0.0/035/05        59 WNW AERO 58 WNW RMY 59
3/08  47/30/39/+6/0.00/0.0/673/97         55 WNW AERO 53 WNW RMY 56
3/09  38/29/34/+1/0.36/3.3/000/00         19 NNW AERO 17 NNW RMY 20
3/10  49/26/38/+4/0.00/0.0/504/72         18 NW  AERO 16 SSW RMY 18
3/11  55/32/44/+10/0.00/0.0/640/91        27 S   AERO 25 S   RMY 27
3/12  46/20/33/-1/0.49/0.6/000/00         59 NW  AERO 60 NW  RMY 50
3/13  34/17/26/-8/0.00/0.0/666/94         54 WNW AERO 51 WNW RMY 55
3/14  52/25/39/+4/0.00/0.0/584/82         32 WNW AERO 28 W   RMY 33
3/15  62/39/51/+16/0.03/0.0/386/54        27 SW  AERO 23 SW  RMY 27
3/16  56/36/46/+11/0.00/0.0/395/55        25 S   AERO 22 S   RMY 25
3/17  55/37/46/+10/0.06/0.0/000/00        23 SSW AERO 20 SSE RMY 23
3/18  73/46/60/+24/T/0.0/542/75           20 W   AERO 16 WNW RMY 21
3/19  53/42/48/+12/0.21/0.0/000/00        25 NW  AERO 20 NW  RMY 25
3/20  62/42/52/+15/0.01/0.0/190/26        35 NW  AERO 35 NW  RMY 36
3/21  57/37/47/+10/T/0.0/644/88           51 WNW AERO 48 WNW RMY 50
3/22  50/31/41/+4/0.00/0.0/632/86         51 NW  AERO 47 NW  RMY 53
3/23  47/26/37/-1/T/0.0/480/65            20 NNW AERO 16 NNW RMY 19
3/24  42/34/38/0/0.81/0.0/000/00          32 ESE AERO 29 ESE RMY 34
3/25  59/35/47/+9/0.33/0.0/409/55         34 NNE AERO 32 NNE RMY 33
3/26  55/38/47/+8/0.11/0.0/216/29         22 NW  AERO 18 SW  RMY 22
3/27  49/26/38/-1/0.00/0.0/554/74         36 WNW AERO 35 WNW RMY 39
3/28  34/17/26/-13/T/0.2/278/37           40 NW  AERO 37 NW  RMY 40
3/29  37/15/26/-14/…./…/…/..        38 WNW AERO 35 NW  RMY 38
3/30  48/23/36/-4/0.00/0.0/…/..         36 NW  AERO 31 WNW RMY 36
3/31  62/37/50/+9/…/0.0/…/..          57 SSW AERO 58 SSW RMY 61

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/…./0.0/…/..          56 WNW AERO 55 WNW RMY 58

4/02 The low since midnight is 34F, the daily normal low is 33F

DAILY RECORDS FOR MARCH 2022

3/07/22: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 47F,
SURPASSES PREVIOUS RECORD OF 43F SET IN 1894

3/18/22: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 73F,
SURPASSES PREVIOUS RECORD OF 72F SET IN 2012

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

RECORDS FOR APRIL 2
HIGH 77 IN 1967
LOW 14 IN 1919
PRECIP 1.83 IN. IN 1970
SNOWFALL 6.5 IN. IN 1924
PEAK GUST 76 MPH SSW IN 1970

RECORDS FOR APRIL 3
HIGH 76 IN 1892
LOW 16 IN 1894
PRECIP 2.18 IN. IN 1990
SNOWFALL 8.0 IN. IN 1915
PEAK GUST 83e MPH NW IN 1977 [RECORD FOR MONTH]

TODAY’S REPORT PREPARED BY: Benjamin Turner

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Blue Hill Observatory & Science Center · Legal

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