Friday, March 25, 2022

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

FRIDAY, MARCH 25, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0540E
SUNSET:  1801E

CLOUDS AND CHILL TOUGH TO ERODE…SOME AFTERNOON SUNSHINE

Following more overnight rainfall, conditions were very
slow to improve. While the precip came to a conclusion around
4am and visibility increased substantially, the clouds and
chilly temperatures were rather stubborn. It took until
noontime for us to finally see some breaks in the overcast and
temperatures respond into the low 50s.

Speaking of the precip, the rain event over the past 48-hrs dropped
a total of 1.14″, though not enough to erase the monthly deficit
which now stands at -1.64″. However, it was enough to push us to
an even departure for the year.

Winds are not too busy – averaging around 10 MPH – which helps
partly to explain the rather static conditions of this morning.

The high so far today is 53F, which is 6 degrees above the normal
maximum of 47F. The low since midnight is 35, which is 5 degrees
above the normal minimum of 30F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Scattered Stratus Fractus, Overcast Altocumulus & Altostratus
Temperature: 36F; Dew Point: 35F; Relative Humidity: 97%
Wind: NNW @ 9G14 kts
Sea-level pressure: 1002.7 mb; 29.61 in. Hg: rising unsteadily
Visibility: 80 miles (15 miles NNE-SSE)
6-hr Max temp: 39F
6-hr Min temp: 35F
24-hr Precip:  0.76 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 10 SCT 100 OVC 80 027/36/35/3309G14/961/
VSBY 15 NNE-SSE/ 8/72/ 52004 70076 10039 20035

10 A.M.
Weather: Scattered Altocumulus & Altostratus, Overcast Cirrus
Temperature: 42F; Dew Point: 38F; Relative Humidity: 85%
Wind: WNW @ 4 kts
Sea-level pressure: 1001.1 mb; 29.56 in Hg: falling unsteadily
Visibility: 80 miles
3-hr Precip:   0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 130 SCT 220 OVC 80 011/42/38/2904/956/ WND LGT/ 8/022 57016

1 P.M.
Weather: Scattered Altocumulus & Altostratus, Scattered Cirrus
Temperature: 52F, Dew point: 41F; Relative Humidity: 65%
Wind: NW @ 4 kts
Sea-level pressure: 998.0 mb; 29.47 in Hg: falling unsteadily
Visibility: 75 miles
6-hr Max temp: 53F
6-hr Min temp: 36F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 140 SCT 250 SCT 75 980/52/41/3104/947/ WND LGT/
8/021 57031 10053 20036

————————————————————–

SUMMARY FOR THURSDAY, MARCH 24, 2022

TEMPERATURE (DEGREES F)
MAX…….42     NORMAL…..47
MIN…….34     NORMAL…..29
MEAN……38     NORMAL…..38

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..0
TOTAL DEPARTURE FOR THE MONTH……………..+138 [+5.6 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………27  DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH…………..595  DEPARTURE……-140
TOTAL HEATING UNITS FOR THE SEASON…………4678  DEPARTURE……-489
TOTAL HEATING UNITS LAST SEASON TO DATE…….4723  DEPARTURE…….-45

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….32 ESE @  6:43 A.M.
AEROVANE……………….29 ESE @  4:47 A.M.
VECTOR #2 (Instantaneous)..35     @  4:52 A.M.
DAVIS #2 ………………32 ESE @  6:36 A.M.
RMY #2 (Instantaneous)…..34 SE  @  6:43 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………………21 ESE @  4:53 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22     @  4:49 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………22 ESE @  4:56 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..22 SE  @  4:56 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……11.9 ESE [285 total miles] VECTOR #2…………….12.3
DAVIS #2……………..12.4 E
RMY #2……………….12.1 E
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…….0.76  DEPARTURE…..+0.58
TOTAL PRECIPITATION FOR THE MONTH………….2.64  DEPARTURE…..-1.64
TOTAL PRECIPITATION FOR THE YEAR………….12.78  DEPARTURE……0.00

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.3
TOTAL SNOWFALL FOR THE MONTH……………….3.9  DEPARTURE……-9.0
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.5  DEPARTURE……+5.7

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/…/..           51 WNW AERO 48 WNW RMY 50
3/22  50/31/41/+4/0.00/0.0/…/..         51 NW  AERO 47 NW  RMY 53
3/23  47/26/37/-1/…./0.0/…/..         20 NNW AERO 16 NNW RMY 19
3/24  42/34/38/0/…./0.0/…/..          32 ESE AERO 29 ESE RMY 34

3/25 The low since midnight is 35F, the daily normal low is 30F

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 25
HIGH 76 IN 1910
LOW 8 IN 1888, 1956
PRECIP 1.84 INS. IN 1909
SNOWFALL 1.8 INS. IN 2018
PEAK GUST 69 MPH SE IN 1969

RECORDS FOR MARCH 26
HIGH 76 IN 1922, 1949
LOW 6 IN 1960
PRECIP 1.99 INS. IN 1988
SNOWFALL 5.4 INS. IN 2001
PEAK GUST 63 MPH S IN 1970

TODAY’S REPORT PREPARED BY: Andrew Swanson