Sunday, April 3, 2022

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

SUNDAY, APRIL 3, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0523E
SUNSET:  1812E

MOSTLY CLOUDY WITH A LIGHT EASTERLY BREEZE ATOP
GREAT BLUE HILL….

Today was overcast with a couple breaks throughout the
day. Wind was easterly and lighter with an average speed
of less than 10 mph.

Visibility was great today with 80 miles being seen
for the most part. Pressure is on a steady drop, and
dew points are under freezing with temperatures in
the mid to upper 40’s.

The high so far today is 51F, which is the same as the
normal maximum. The low since midnight is 37F, which is
4 degrees above the normal minimum of 33F.

————————————————————–

PRELIMINARY STATS FOR MARCH 2022

TEMPERATURE, Deg. F
Avg. Max. 49.6 [+5.5] Avg. Min. 29.5 [+2.6] Mean      39.8 [+4.3] 24-hour corrected mean: 38.9
Max. for month: 73F on the 18th
Min. for month: 10F on the 4th

HEATING DEGREE DAYS
Total heating units:    780 [+135] Total for the season:  4863 [-484] Total for last season: 4822

PRECIPITATION, Inches
Total: N/A
Greatest in 24 hrs: N/A

SNOWFALL, Inches
Total: 4.1 ins. [-10.9] Greatest in 24 hrs: 3.3 ins. from the 9th-10th

WIND, mph
Avg. uncorrected wind speed: 12.6 mph
Avg. corrected wind speed:   13.0 mph
Prevailing wind direction:   WNW [18%] Peak gust and direction:  59 WNW on the 7th

SUNSHINE:
Campbell-Stokes card minutes: N/A
Astronomical total minutes: N/A

————————————————————–

Today’s Observations:

7 A.M.
Weather: Overcast altocumulus and altostratus
Temperature: 38F; Dew Point: 29F; Relative Humidity: 70%
Wind: NE @ 6 kts, wind light
Sea-level pressure: 1012.5 mb; 29.89 in. Hg: falling, then
more slowly
Visibility: 80 miles
6-hr Max temp: 41F
6-hr Min temp: 37F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 120 OVC 80 125/38/29/0606/989/ WND LGT/ 8/07/
56009 10041 20037

10 A.M.
Weather: Broken altocumulus and overcast cirrostratus
Temperature: 43F; Dew Point: 29F; Relative Humidity: 58%
Wind: SE @ 6 kts, wind light
Sea-level pressure: 1010.7 mb; 29.83 in Hg: falling, then more
slowly
Visibility: 75 miles
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 120 BKN 220 OVC 75 107/43/29/1306/983/ WND LGT/
8/077 56018

1 P.M.
Weather: Scattered stratocumulus, broken altocumulus, overcast
cirrostratus with a few breaks N-NE
Temperature: 47F, Dew point: 31F; Relative Humidity: 51%
Wind: ENE @ 11G16 kts
Sea-level pressure: 1008.8 mb; 29.77 in Hg: falling unsteadily
Visibility: 80 miles
6-hr Max temp: 51F
6-hr Min temp: 38F
6-hr Precip:  0.00 ins
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 40 SCT 120 BKN 220 OVC 80 088/47/31/0711G16/977/
FEW BINOVC N-NE/ 8/576 57019 10051 20038

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SUMMARY FOR SATURDAY, APRIL 2, 2022

TEMPERATURE (DEGREES F)
MAX…….52     NORMAL…..50
MIN…….34     NORMAL…..33
MEAN……43     NORMAL…..41

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….+2
TOTAL DEPARTURE FOR THE MONTH……………….+7 [+3.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………22  DEPARTURE……..-2
TOTAL HEATING UNITS FOR THE MONTH……………41  DEPARTURE……..-7
TOTAL HEATING UNITS FOR THE SEASON…………4904  DEPARTURE……-491
TOTAL HEATING UNITS LAST SEASON TO DATE…….4878  DEPARTURE…….+26

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….45 WNW @  5:32 A.M.
AEROVANE……………….43 WNW @  5:31 A.M.
VECTOR #2 (Instantaneous)..50     @  5:31 A.M.
DAVIS #2 ………………43 WNW @  5:32 A.M.
RMY #2 (Instantaneous)…..47 WNW @  5:31 A.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 WNW @  5:32 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..35     @  5:33 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………34 NW  @  5:33 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..34 WNW @  5:33 A.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…….14.8 WNW [354 total miles] VECTOR #2……………..15.3
DAVIS #2………………15.2 NW
RMY #2………………..15.0 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…….0.00  DEPARTURE…..+0.17
TOTAL PRECIPITATION FOR THE MONTH………….0.83  DEPARTURE…..+0.33
TOTAL PRECIPITATION FOR THE YEAR………….13.72  DEPARTURE…..-0.62

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……-0.4
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.7  DEPARTURE……+3.7

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

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

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  52/34/43/+2/…./0.0/…/..          45 WNW AERO 43 WNW RMY 47

4/03 The low since midnight is 37F, the daily normal low is 33F

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

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]

RECORDS FOR APRIL 4
HIGH 76 IN 2010
LOW 12 IN 1954
PRECIP 1.45 IN. IN 1987
SNOWFALL 7.3 IN. IN 2016
PEAK GUST 80 MPH WNW IN 1963

TODAY’S REPORT PREPARED BY: Benjamin Turner