Saturday, March 26, 2022

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

SATURDAY, MARCH 26, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0537E
SUNSET:  1803E

INCREASINGLY CLOUDY CONDITIONS AS PRESSURE CONTINUES TO
DROP….

While visibility remains around 80 miles, the sky has become
overcast. A slow and steady pressure drop of 4 millibars has
been noted since midnight. Some distant showers on radar
have occurred to the south and east in anticipation of a
shortwave frontal passage. No rainfall on the summit has
yet been observed.

We need some more rainfall to close off the month, as the
rain deficit on the month stands at -1.84 inches. Snowfall
deficit is -9.3 inches.

Wind has increased slightly since this morning, shifting
from west to south. Average speed is a little over 10 mph with
a max gust so far today of 21 mph.

The high so far today is 54F, which is 7 degrees above the normal
maximum of 47F. The low since midnight is 35F, which is 5 degrees
above the normal minimum of 30F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Scattered stratocumulus, broken altocumulus
Temperature: 43F; Dew Point: 34F; Relative Humidity: 70%
Wind: W @ 7 kts
Sea-level pressure: 998.5 mb; 29.49 in. Hg: rising, then more
rapidly
Visibility: 80 miles
6-hr Max temp: 46F
6-hr Min temp: 42F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 55 SCT 80 BKN 80 985/43/34/2707/949/ 8/550 53005
10046 20042

10 A.M.
Weather: Scattered cumulus, broken altocumulus
Temperature: 49F; Dew Point: 33F; Relative Humidity: 53%
Wind: W @ 7 kts
Sea-level pressure: 996.9 mb; 29.44 in Hg: falling unsteadily
Visibility: 75 miles
3-hr Precip:   0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 50 SCT 80 BKN 75 969/49/33/2707/944/ 8/150 57016

1 P.M.
Weather: Broken stratocumulus, Overcast altostratus
Temperature: 52F, Dew point: 35F; Relative Humidity: 52%
Wind: NW @ 11G18 kts
Sea-level pressure: 994.6 mb; 29.37 in Hg: falling steadily
Visibility: 80 miles
6-hr Max temp: 54F
6-hr Min temp: 43F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 50 BKN 80 OVC 80 946/52/35/1811G18/937/ 8/87/
57023 10054 20043

————————————————————–

SUMMARY FOR FRIDAY, MARCH 25, 2022

TEMPERATURE (DEGREES F)
MAX…….59     NORMAL…..47
MIN…….35     NORMAL…..30
MEAN……47     NORMAL…..38

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….+9
TOTAL DEPARTURE FOR THE MONTH……………..+147 [+5.7 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………18  DEPARTURE……..-9
TOTAL HEATING UNITS FOR THE MONTH…………..613  DEPARTURE……-149
TOTAL HEATING UNITS FOR THE SEASON…………4696  DEPARTURE……-498
TOTAL HEATING UNITS LAST SEASON TO DATE…….4730  DEPARTURE…….-34

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….34 NNE @  1:12 A.M.
AEROVANE……………….32 NNE @  1:12 A.M.
VECTOR #2 (Instantaneous)..35     @  1:12 A.M.
DAVIS #2 ………………33 ENE @  1:13 A.M.
RMY #2 (Instantaneous)…..33 NNE @  1:12 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………………22 NNE @  1:11 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22     @  1:12 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………22 ENE @  1:22 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..22 NNE @  1:12 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…….9.9 WSW [238 total miles] VECTOR #2…………….10.6
DAVIS #2……………..10.5 WNW
RMY #2……………….10.5 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…….0.00  DEPARTURE…..-0.18
TOTAL PRECIPITATION FOR THE MONTH………….2.64  DEPARTURE…..-1.82
TOTAL PRECIPITATION FOR THE YEAR………….12.78  DEPARTURE…..-0.18

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……-9.3
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.5  DEPARTURE……+5.4

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  59/35/47/+9/…./…/…/..         34 NNE AERO 32 NNE RMY 33

3/26 The low since midnight is 42F, 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 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

RECORDS FOR MARCH 27
HIGH 78 IN 1998
LOW 12 IN 1975
PRECIP 1.05 INS. IN 1913
SNOWFALL 6.6 INS. IN 1959
PEAK GUST 62 MPH NW IN 1965, SE IN 1992

TODAY’S REPORT PREPARED BY: Benjamin Turner