Monday, November 29, 2021
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, NOVEMBER 29, 2021
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0652E
SUNSET: 1613E
CHILLY WITH INCREASING VISIBILITY AND MOSTLY CLOUDY SKIES….
Today began on the hazier side with 20 miles of visibility in the
morning; increasing to 75 miles by noontime. Skies were mostly
cloudy with some sun breaking through by the 10 A.M. observation.
Wind was northerly with an average speed around 7 mph and a max
gust of only 13 mph occurring earlier this morning.
Temperatures are once again below normal with a high so far today
of 38F, 8 degrees below the normal max of 46F. The low since midnight
is 28F, 2 degrees below the normal low of 30F.
These temperatures are normal for mid to late December!
————————————————————–
Today’s Observations:
7 A.M.
Weather: Scattered stratocumulus and altocumulus, overcast
cirrostratus with breaks NE-SE
Temperature: 28F; Dew Point: 21F; Relative Humidity: 74%
Wind: N @ 8 kts
Sea-level pressure: 1010.4 mb; 29.84 in. Hg: rising, then more rapidly
Visibility: 20 miles, hazy
6-hr Max temp: 32F
6-hr Min temp: 28F
24-hr Precip: Trace
24-hr Snowfall: Trace
Snow Depth: 0 ins.
BHO SA 1155 40 SCT 120 BKN 250 OVC 20 104/28/21/3608/984/ BINOVC NE-SE HAZY/
8/558 53011 70000 10032 20028
10 A.M.
Weather: Scattered stratocumulus, broken altocumulus
Temperature: 33F; Dew Point: 23F; Relative Humidity: 67%
Wind: N @ 8 kts
Sea-level pressure: 1009.2 mb; 29.80 in Hg; falling unsteadily
Visibility: 30 miles, hazy
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 40 SCT 120 BKN 30 092/33/23/3608/980/ HAZY/ 8/550 57012
1 P.M.
Weather: Scattered cumulus, broken altocumulus and cirrocumulus
Temperature: 38F, Dew point: 24F; Relative Humidity: 57%
Wind: N @ 7 kts
Sea-level pressure: 1007.9 mb; 29.76 in Hg; falling, then more slowly
Visibility: 75 miles
6-hr Max temp: 38F
6-hr Min temp: 28F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 60 SCT 120 BKN 250 BKN 75 079/38/24/3607/976/ 8/179 56013 10038
20028
SUMMARY FOR SUNDAY, NOVEMBER 28, 2021
TEMPERATURE (DEGREES F)
MAX…….36 NORMAL…..46
MIN…….24 NORMAL…..30
MEAN……30 NORMAL…..38
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………… -8
TOTAL DEPARTURE FOR THE MONTH……………………… +24 [+0.7 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………35 DEPARTURE……..+8
TOTAL HEATING UNITS FOR THE MONTH…………..613 DEPARTURE…….-24
TOTAL HEATING UNITS FOR THE SEASON………….940 DEPARTURE……-208
TOTAL HEATING UNITS LAST SEASON TO DATE……..937 DEPARTURE…… +3
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….22 W @ 2:50 A.M.
AEROVANE……………….21 W @ 2:25 A.M.
VECTOR #2 (Instantaneous)..23 @ 2:50 A.M.
DAVIS #2 ………………21 W @ 2:17 A.M.
RMY #2 (Instantaneous)…..23 W @ 2:24 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………………16 W @ 2:27 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 @ 2:24 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 W @ 2:27 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 W @ 2:24 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…….6.4 WSW [153 total miles]
VECTOR #2……………..7.3
DAVIS #2………………7.1 W
RMY #2………………..7.3 WSW
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…..-0.16
TOTAL PRECIPITATION FOR THE MONTH………….1.92 DEPARTURE…..-2.08
TOTAL PRECIPITATION FOR THE YEAR………….56.77 DEPARTURE…..+8.87
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………..TRACE DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH……………….1.0 DEPARTURE……-0.5
TOTAL SNOWFALL FOR THE SEASON (2021-2022)……1.0 DEPARTURE……-1.2
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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
11/01 59/41/50/+3/0.00/0.0/594/96 38 WNW AERO 39 WNW RMY 39
11/02 56/40/48/+1/0.00/0.0/247/40 25 SW AERO 25 SW RMY 26
11/03 51/35/43/-3/0.00/0.0/572/93 28 W AERO 25 W RMY 27
11/04 49/31/40/-6/0.00/0.0/446/73 17 NNE AERO 17 NNW RMY 16
11/05 49/32/41/-5/0.00/0.0/591/97 25 NW AERO 24 NW RMY 24
11/06 51/34/43/-2/0.00/0.0/595/98 18 SSW AERO 17 SW RMY 19
11/07 55/37/46/+1/0.00/0.0/514/85 17 W AERO 17 W RMY 16
11/08 60/38/49/+4/0.00/0.0/578/96 20 N AERO 18 N RMY 19
11/09 69/45/57/+13/0.00/0.0/582/97 21 W AERO 21 W RMY 22
11/10 60/44/52/+8/0.00/0.0/389/65 36 NW AERO 35 NW RMY 35
11/11 56/40/48/+5/0.00/0.0/501/84 26 SE AERO 28 SE RMY 27
11/12 61/45/53/+10/1.00/0.0/000/00 72 SSE AERO 78 SSE RMY 76
11/13 60/36/48/+5/0.32/0.0/556/94 53 SW AERO 53 SW RMY 54
11/14 47/33/40/-2/0.03/0.0/336/57 29 W AERO 28 W RMY 28
11/15 48/36/42/0/0.07/0.0/405/69 35 W AERO 36 W RMY 38
11/16 46/31/39/-3/0.00/0.0/…/.. 40 WNW AERO 41 WNW RMY 42
11/17 49/30/40/-1/0.00/0.0/…/.. 34 S AERO 36 S RMY 34
11/18 69/49/59/+18/T/0.0/…/.. 39 NW AERO 36 WNW RMY 42
11/19 51/32/42/+1/0.29/0.0/…/.. 42 W AERO 41 W RMY 41
11/20 45/27/36/-4/0.00/0.0/…/.. 23 S AERO 23 S RMY 24
11/21 52/36/44/+4/T/0.0/…/.. 35 S AERO 35 S RMY 36
11/22 55/33/44/+4/0.09/0.0/…/.. 41 WSW AERO 41 WSW RMY 42
11/23 38/24/31/-8/0.00/0.0/…/.. 36 NW AERO 37 NW RMY 37
11/24 41/22/32/-7/0.00/0.0/…/.. 33 NW AERO 32 NW RMY 34
11/25 53/31/42/+3/0.00/0.0/…/.. 21 WNW AERO 21 W RMY 21
11/26 43/31/37/-1/0.11/0.9/…/.. 39 WNW AERO 39 WNW RMY 41
11/27 37/24/31/-7/0.01/0.1/…/.. 47 WNW AERO 45 WNW RMY 48
11/28 36/24/30/-8/T/T/…/.. 22 W AERO 21 W RMY 23
11/29 The low since midnight is 28F, the daily normal low is 30F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR NOVEMBER 29
HIGH 66 IN 2011
LOW 6 IN 1901
PRECIP 2.69 INCHES IN 1963
SNOWFALL 5.0 INS IN 1995
PEAK GUST 86 SSE IN 1963
RECORDS FOR NOVEMBER 30
HIGH 67 IN 2006
LOW 6 IN 1891
PRECIP 2.50 INCHES IN 1944
SNOWFALL 10.2 INS IN 1945
PEAK GUST 90 SSW IN 1963
TODAY’S REPORT PREPARED BY: Benjamin Turner