Wednesday, March 30, 2022

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

WEDNESDAY, MARCH 30, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0530E
SUNSET:  1808E

CHILLY YET MILDER WITH EXCELLENT VISIBILITY….

Today was chilly with temperatures under freezing earlier on
this morning. Wind was northwesterly with wind speed dropping
as we approached noontime. Visibility was almost perfect today
at 85 miles.

Skies were almost clear this morning, featuring almost
an overcast of upper level clouds by 2 P.M.

The high so far today is 46F, which is 2 degrees below the
normal maximum of 48F. The low since midnight is 23F, which is
8 degrees below the normal minimum of 31F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few cirrostratus
Temperature: 27F; Dew Point: 12F; Relative Humidity: 53%
Wind: WNW @ 14G24 kts
Sea-level pressure: 1021.1 mb; 30.15 in. Hg: rising, then
more slowly
Visibility: 85 miles
6-hr Max temp: 27F
6-hr Min temp: 23F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 CLR 85 211/27/12/3014G24/015/ FEW CS ALQDS/
8/005 51019 10027 20023

10 A.M.
Weather: Thin broken cirrostratus
Temperature: 37F; Dew Point: 11F; Relative Humidity: 47%
Wind: NW @ 11G17 kts
Sea-level pressure: 1020.9 mb; 30.15 in Hg: falling
unsteadily
Visibility: 85 miles
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 250 -BKN 85 209/37/11/3211G17/015/ 8/006 57002

1 P.M.
Weather: Broken cirrus
Temperature: 46F, Dew point: 16F; Relative Humidity: 30%
Wind: NW @ 6 kts, wind light
Sea-level pressure: 1019.6 mb; 30.11 in Hg: falling, then
more rapidly
Visibility: 85 miles
6-hr Max temp: 46F
6-hr Min temp: 27F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 250 BKN 85 196/46/16/3206/011/ WND LGT/ 8/006
58013 10046 20027

————————————————————–

SUMMARY FOR TUESDAY, MARCH 29, 2022

TEMPERATURE (DEGREES F)
MAX…….37     NORMAL…..48
MIN…….15     NORMAL…..31
MEAN……26     NORMAL…..40

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……-14
TOTAL DEPARTURE FOR THE MONTH……………..+127 [+4.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………39  DEPARTURE…….+14
TOTAL HEATING UNITS FOR THE MONTH…………..736  DEPARTURE……-129
TOTAL HEATING UNITS FOR THE SEASON…………4819  DEPARTURE……-478
TOTAL HEATING UNITS LAST SEASON TO DATE…….4792  DEPARTURE…….+27

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….38 WNW @  4:59 P.M.
AEROVANE……………….35 NW  @  2:33 P.M.
VECTOR #2 (Instantaneous)..39     @  4:59 P.M.
DAVIS #2 ………………34 NNW @  3:38 P.M.
RMY #2 (Instantaneous)…..38 NW  @  8:22 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………………25 WNW @  4:06 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..26     @  4:05 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………26 WNW @  4:05 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 WNW @  4:05 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…….16.6 NW [399 total miles] VECTOR #2……………..16.9
DAVIS #2………………16.8 NW
RMY #2………………..16.6 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………….2.75  DEPARTURE…..-2.42
TOTAL PRECIPITATION FOR THE YEAR………….12.89  DEPARTURE…..-0.78

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.3
TOTAL SNOWFALL FOR THE MONTH……………….4.1  DEPARTURE…..-10.4
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.7  DEPARTURE……+4.3

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 The low since midnight is 23F, the daily normal low is 31F

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 MARCH 30
HIGH 83 IN 1977
LOW 10 IN 1887
PRECIP 2.92 INS. IN 2010
SNOWFALL 3.9 INS. IN 1957
PEAK GUST 60 MPH NW IN 1999

RECORDS FOR MARCH 31
HIGH 89 IN 1998  [RECORD HIGH FOR MONTH] LOW 16 IN 1923
PRECIP 2.89 IN 1987
SNOWFALL 15.0 IN 1997
PEAK GUST 81 MPH SSE IN 1987

TODAY’S REPORT PREPARED BY: Benjamin Turner