Wednesday, January 11, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
WEDNESDAY, JANUARY 11, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0712E
SUNSET: 1632E
COOLER WITH HAZY CONDITIONS THIS MORNING LEADING
TO BETTER VISIBILITY IN THE AFTERNOON HOURS….
Today we observed improving conditions as cloud cover
decreased since this morning. Visibility went from
20 miles this morning to 60 miles by the 1 P.M.
observation. Wind is 10 mph on average with a daily
max gust of 18 mph from the north.
We have not had a below normal day yet this year in regard
to temperature! Our snow deficit for the season continues
to build, it being -16.8 inches so far.
The high so far today is 32F, which is 3 degrees below
the normal maximum of 35F. The low since midnight is 18F,
which is a degree below the normal minimum of 19F.
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Today’s Observations:
7 A.M.
Weather: scattered cirrocumulus, few stratocumulus NE-E-S
Temperature: 19F; Dew Point: 16F; Relative Humidity: 87%
Wind: N @ 9 kts
Sea-level pressure: 1024.4 mb; 30.25 in. Hg: rising then more slowly
Visibility: 20 miles, haze
6-hr Max temp: 25F
6-hr Min temp: 19F
24-hr Precip: 0.0in
24-hr Snowfall: 0.0in
Snow Depth: 0in
BHO SA 1155 250 SCT 20 244/19/16/3609/025/ FEW SC NE-E-S HAZY/ 8/509
51013 10025 20019
10 A.M.
Weather: scattered cirrus, few stratocumulus NE-E-S
Temperature: 27F; Dew Point: 19F; Relative Humidity: 72%
Wind: N @ 5 kts, wind light
Sea-level pressure: 1026.7 mb; 30.32 in. Hg: rising unsteadily
Visibility: 40 miles, haze
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 250 SCT 40 267/27/19/3605/032/ FEW SC NE-E-S HAZY WND LGT/
8/502 52023
1 P.M.
Weather: Scattered stratocumulus, scattered cirrus
Temperature: 32F; Dew Point: 23F; Relative Humidity: 67%
Wind: N @ 7 kts
Sea-level pressure: 1025.7 mb; 30.29 in. Hg: falling then
more slowly
Visibility: 60 miles
6-hr Max temp: 32F
6-hr Min temp: 18F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 40 SCT 250 SCT 60 257/32/23/3607/029/ 8/502
56010 10032 20018
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SUMMARY FOR TUESDAY, JANUARY 10, 2023
TEMPERATURE (DEGREES F)
MAX…….41 NORMAL…..35
MIN…….25 NORMAL…..19
MEAN……33 NORMAL…..27
DEPARTURE FROM 30-YEAR (1991-2020) NORMA………+6
TOTAL DEPARTURE FOR THE MONTH……………….+82 [+8.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………32 DEPARTURE……..-6
TOTAL HEATING UNITS FOR THE MONTH…………..279 DEPARTURE…….-95
TOTAL HEATING UNITS FOR THE SEASON…………2189 DEPARTURE……-395
TOTAL HEATING UNITS LAST SEASON TO DATE…….2189 DEPARTURE…….-46
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….28 NW @ 11:37 A.M.
VECTOR #2 (Instantaneous)..29 @ 11:32 A.M.
DAVIS #2 ………………26 WNW @ 11:35 A.M.
RMY #2 (Instantaneous)…..28 NW @ 10:07 A.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………………20 NW @ 10:10 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..20 @ 10:09 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………20 NW @ 10:08 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..20 NW @ 10:09 A.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…….10.0 WNW [240 total miles]
VECTOR #2……………..10.8
DAVIS #2………………10.7 NW
RMY #2………………..10.7 NW
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……..0.00 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH…………..1.26 DEPARTURE…..-0.25
TOTAL PRECIPITATION FOR THE YEAR……………1.26 DEPARTURE…..-0.25
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………..1.1 DEPARTURE……-4.4
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…….3.8 DEPARTURE…..-16.8
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PRELIMINARY CLIMATE SUMMARY FOR JANUARY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN)/SUN(%)/PEAK GUST/VEC1/RMY GUST
VEC1: Vector #1 1-second gust
RMY: R.M. Young wind gust recording system (Instantaneous)
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
1/1 53/38/46/+17/0.04/0.0/412/75 39 WNW VEC1 N/A RMY 60
1/2 49/33/41/+13/0.00/0.0/044/08 39 WNW VEC1 N/A RMY 39
1/3 48/37/43/+15/0.50/0.0/000/00 23 S VEC1 N/A RMY 24
1/4 43/37/40/+12/0.31/0.0/000/00 23 NE VEC1 N/A RMY 23
1/5 43/33/38/+10/0.23/0.0/000/00 34 ENE VEC1 N/A RMY 37
1/6 35/31/33/+5/0.18/1.0/000/00 19 NNE VEC1 N/A RMY 19
1/7 40/30/35/+8/0.00/0.0/105/19 22 NW VEC1 N/A RMY 23
1/8 36/20/28/+1/0.00/0.0/517/93 26 NNW VEC1 N/A RMY 28
1/9 42/26/34/+7/…./0.1/…/.. 27 NW VEC1 N/A RMY 27
1/10 41/25/33/6/…../…/…/.. 28 NW VEC1 N/A RMY 28
1/11 The low since midnight is 18F, the daily normal low is 19F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR JANUARY 11
HIGH 65F IN 2020
LOW -7F IN 1968
PRECIP 1.58 INS. IN 2008
SNOW 10.2 INS. 1927
PEAK GUST 95e MPH S IN 1980
RECORDS FOR JANUARY 12
HIGH 68F IN 2020 [RECORD HIGH TIE FOR MONTH]
LOW -15F IN 1886
PRECIP 2.04 INS. IN 2011
SNOW 18.2 INS. IN 2011
WIND 84e MPH S IN 1980
TODAY’S REPORT PREPARED BY: Benjamin Turner and Andrew Sullivan
