Friday, December 16, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
FRIDAY, DECEMBER 16, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0707E
SUNSET: 1613E
RAINY AND WINDY ALL DAY, NOT THE MOST ENJOYABLE
WEATHER….
Today we observed overcast conditions with consistent
rain and wind. Visibility was six miles at most, but
has decreased to around a half mile as rain and fog
intensify.
Wind is easterly, with speeds around 25 mph and
frequent gusts above 30 mph. The highest gust so
far today is above 40 mph! This leaves a very cold
feeling in the air.
Rainfall before 7 A.M. amounted to 0.30 inches, with
an additional 0.60 inches falling before the 1 P.M.
observation.
The high so far today is 40F, which is the same as
the normal maximum. The low since midnight is 39F,
which is 14 degrees above the normal minimum of 25F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Overcast stratus, light rain
Temperature: 39F; Dew Point: 39F; Relative Humidity: 100%
Wind: E @ 15G26 kts, peak of 35 mph E at 6:33 A.M.
Sea-level pressure: 1013.5 mb; 29.93 in. Hg: falling, then more
rapidly
Visibility: 6 miles, fog
6-hr Max temp: 40F
6-hr Min temp: 39F
24-hr Precip: 0.30 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 20 OVC 6R-F 135/39/39/0915G26/993/ PK WND 0931/33/
8/7// 58020 70030 10040 20039
10 A.M.
Weather: Rain and fog
Temperature: 40F; Dew Point: 40F; Relative Humidity: 100%
Wind: E @ 19G26 kts, peak of 40 mph E at 9:16 A.M.
Sea-level pressure: 1010.7 mb; 29.84 in. Hg: falling, then
more slowly
Visibility: 1/2 mile, fog
3-hr Precip: 0.31 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 X W3 1/2RF 107/40/40/0919G26/984/ PK WND 0935/16/
8//// 56028 6031/
1 P.M.
Weather: Overcast stratus, rain
Temperature: 41F, Dew point: 41F; Relative Humidity: 100%
Wind: E @ 22G33 kts, peak of 46 mph E at 12:22 P.M.
Sea-level pressure: 1005.5 mb; 29.69 in Hg: falling, then more
slowly
Visibility: 1 mile, fog
6-hr Max temp: 41F
6-hr Min temp: 39F
6-hr Precip: 0.60 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 15 OVC 1RF 055/41/41/0922G33/969/ PK WND 0940/22/
8/7// 56052 6060/ 10041 20039
————————————————————–
SUMMARY FOR THURSDAY, DECEMBER 15, 2022
TEMPERATURE (DEGREES F)
MAX…….40 NORMAL…..40
MIN…….30 NORMAL…..25
MEAN……35 NORMAL…..33
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………+2
TOTAL DEPARTURE FOR THE MONTH………………..+20 [+1.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………30 DEPARTURE……..-2
TOTAL HEATING UNITS FOR THE MONTH…………..433 DEPARTURE…….-21
TOTAL HEATING UNITS FOR THE SEASON…………1402 DEPARTURE……-256
TOTAL HEATING UNITS LAST SEASON TO DATE…….1399 DEPARTURE……..+3
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….40 E @ 9:02 P.M.
VECTOR #2 (Instantaneous)..41 @ 9:02 P.M.
DAVIS #2 ………………38 E @ 9:02 P.M.
RMY #2 (Instantaneous)…..41 E @ 9:02 P.M.
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 E @ 9:06 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..26 @ 9:04 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………27 E @ 9:04 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 E @ 9:04 P.M.
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…….12.5 E [299 total miles]
VECTOR #2……………..12.7
DAVIS #2………………12.7 ENE
RMY #2………………..12.5 NE
RMY #1……….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……..0.30 DEPARTURE…..+0.13
TOTAL PRECIPITATION FOR THE MONTH…………..1.70 DEPARTURE…..-0.94
TOTAL PRECIPITATION FOR THE YEAR…………..38.81 DEPARTURE….-12.34
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.4
TOTAL SNOWFALL FOR THE MONTH………………..2.6 DEPARTURE……-2.3
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…….2.6 DEPARTURE……-4.8
————————————————————–
PRELIMINARY CLIMATE SUMMARY FOR DECEMBER 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
12/1 40/30/35/-2/0.00/0.0/520/93 54 NW AERO N/A RMY 60
12/2 44/27/36/-1/0.00/0.0/535/96 24 SSW AERO N/A RMY 25
12/3 57/36/47/+11/0.31/0.0/000/00 54 SSW AERO N/A RMY 57
12/4 41/30/36/0/0.00/0.0/355/64 39 WNW AERO N/A RMY 41
12/5 48/29/39/+3/0.00/0.0/454/82 32 SSW AERO N/A RMY 32
12/6 54/38/46/+11/0.09/0.0/000/00 30 SSE AERO N/A RMY 31
12/7 56/46/51/+16/0.85/0.0/000/00 39 SSE AERO N/A RMY 39
12/8 53/33/43/+8/0.00/0.0/534/97 36 NNW AERO N/A RMY 39
12/9 44/29/37/+3/0.00/0.0/549/100 29 N AERO N/A RMY 30
12/10 31/27/29/-5/0.04/0.4/000/00 27 NE AERO N/A RMY 26
12/11 30/23/27/-7/0.15/2.1/000/00 25 NNE AERO N/A RMY 26
12/12 29/21/25/-9/T/T/395/72 24 N AERO N/A RMY 24
12/13 38/19/29/-4/0.00/0.0/547/100 38 NNW AERO N/A RMY 38
12/14 35/18/27/-6/T/0.1/…/.. 42 NNW AERO N/A RMY 44
12/15 40/30/35/+2/…./…/…/.. 40 E AERO N/A RMY 41
12/16 The low since midnight is 39F, the daily normal low is 25F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR DECEMBER 16
HIGH 61 IN 1971
LOW -2 IN 1930
PRECIP 1.67 INS. IN 1960
SNOW 8.5 INS. IN 2007
WIND 73 MPH SSE IN 1982
RECORDS FOR DECEMBER 17
HIGH 63 IN 2000
LOW -9 IN 1942
PRECIP 3.03 INS. IN 1888
SNOWFALL 15.1 INS. IN 2020
PEAK GUST 78 MPH SSE IN 2000
TODAY’S REPORT PREPARED BY: Benjamin Turner
