Thursday, March 31, 2022

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

THURSDAY, MARCH 31, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0528E
SUNSET:  1809E

MILDER WITH VERY LIGHT RAIN AND FOGGY CONDITIONS….

Today was warmer with wind and a very light rain that
persisted from 7 A.M. to 11 A.M. Visibility is limited
to only 15 miles at maximum. Wind is the main feature of the
day so far, reaching almost 40 mph by 1 P.M. Average wind
speeds are almost 30 mph! This could be attributed to the
approaching front that wreaked havoc down south earlier
this week.

Rainfall amounts for the day are only a trace so far. Skies
continue to be overcast.

The high so far today is xxF, which is 2 degrees below the
normal maximum of 49F. The low since midnight is 37F, which is
5 degrees above the normal minimum of 32F.

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Today’s Observations:

7 A.M.
Weather: Very light rain
Temperature: 40F; Dew Point: 40F; Relative Humidity: 100%
Wind: S @ 13G22 kts
Sea-level pressure: 1010.0 mb; 29.83 in. Hg: falling
unsteadily
Visibility: 1 mile, fog
6-hr Max temp: 40F
6-hr Min temp: 37F
24-hr Precip:  Trace
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 15 OVC 1R-F 100/40/40/1813G22/983/ R-B55 PCPN
VRY LGT/ 8/6// 57029 70000 10040 20037

10 A.M.
Weather: Overcast stratus with very light rain
Temperature: 52F; Dew Point: 51F; Relative Humidity: 96%
Wind: SSW @ 16G24 kts
Sea-level pressure: 1007.9 mb; 29.76 in Hg: falling,
then more rapidly
Visibility: 6 miles, fog
3-hr Precip:  Trace
3-hr Snowfall: 0.0 ins.
BHO SA 1455 15 OVC 6R-F 079/52/51/2016G24/976/ PCPN VRY
LGT/ 8/6// 58021 6000/

1 P.M.
Weather: Overcast stratus
Temperature: 60F, Dew point: 56F; Relative Humidity: 85%
Wind: SSW @ 17G28 kts, peak of 37 mph SSW at 11:58 A.M.
Sea-level pressure: 1005.9 mb; 29.70 in Hg: falling, then
more slowly
Visibility: 15 miles, thin fog
6-hr Max temp: 61F
6-hr Min temp: 40F
6-hr Precip:  Trace
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 15 OVC 15 059/60/56/2017G28/970/ THN F ALQDS PK
WND 2032/1658/ 8/6// 56020 6000/ 10061 20040

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SUMMARY FOR WEDNESDAY, MARCH 30, 2022

TEMPERATURE (DEGREES F)
MAX…….48     NORMAL…..49
MIN…….23     NORMAL…..31
MEAN……36     NORMAL…..40

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……-4
TOTAL DEPARTURE FOR THE MONTH……………..+124 [+3.9 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………29  DEPARTURE…….+4
TOTAL HEATING UNITS FOR THE MONTH…………..765  DEPARTURE……-125
TOTAL HEATING UNITS FOR THE SEASON…………4848  DEPARTURE……-474
TOTAL HEATING UNITS LAST SEASON TO DATE…….4812  DEPARTURE…….+29

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….36 NW  @  7:34 A.M.
AEROVANE……………….31 WNW @  7:43 A.M.
VECTOR #2 (Instantaneous)..37     @  7:34 A.M.
DAVIS #2 ………………34 NW  @  7:34 A.M.
RMY #2 (Instantaneous)…..36 NW  @  7:34 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………………24 WNW @  7:09 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..25     @  7:06 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………25 WNW @  7:06 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..24 WNW @  7:06 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…….11.7 WNW [280 total miles] VECTOR #2……………..12.3
DAVIS #2………………12.0 WNW
RMY #2………………..12.1 WNW
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…..-0.17
TOTAL PRECIPITATION FOR THE MONTH………….2.75  DEPARTURE…..-2.59
TOTAL PRECIPITATION FOR THE YEAR………….12.89  DEPARTURE…..-0.95

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.2
TOTAL SNOWFALL FOR THE MONTH……………….4.1  DEPARTURE…..-10.6
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.7  DEPARTURE……+4.1

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 The low since midnight is 37F, the daily normal low is 32F

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 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

RECORDS FOR APRIL 1
HIGH 74 IN 1967
LOW 6 IN 1923 [RECORD FOR MONTH] PRECIP 3.47 IN. IN 2004 [RECORD FOR MONTH] SNOWFALL 15.0 IN. IN 1997 [RECORD FOR MONTH] PEAK GUST 75 MPH SSW IN 1962

TODAY’S REPORT PREPARED BY: Benjamin Turner