Saturday, January 7, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SATURDAY, JANUARY 7, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0713E
SUNSET: 1628E
FINALLY SOME SUNSHINE AFTER AN INCH OF SNOW OVERNIGHT….
Today we observed mostly cloudy skies with an overnight
rain total of 0.16 inches. Part of this was 1.0 inches
of snow overnight, with rain switching to snow around 2
P.M. EST yesterday.
The wind is moderate today, mainly coming in from the
northwest. The max gust is only around 16 mph.
Visibility has improved from a mile this morning to
over 40 miles this afternoon. It’s the first sunshine
seen here in 3 days!
The high so far today is 40F, which is 5 degrees
above the normal maximum. The low since midnight is 30F,
which is 11 degrees above the normal minimum of 19F.
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Today’s Observations:
7 A.M.
Weather: Overcast stratocumulus with breaks overhead
Temperature: 32F; Dew Point: 32F; Relative Humidity: 100%
Wind: NNW @ 4 kts, light and variable
Sea-level pressure: 1018.4 mb; 30.07 in. Hg: rising then more
slowly
Visibility: 1 mile, fog
6-hr Max temp: 32F
6-hr Min temp: 30F
24-hr Precip: 0.16 ins.
24-hr Snowfall: 1.0 ins.
Snow Depth: 1 ins.
BHO SA 1155 10 OVC 1F 184/32/32/3404/007/ THN GLZ ALL SFCS FEW
BINOVC OVHD NEW SNW PST 24 HRS 1.0 INS WND L/V/ 8/500 4/001 51005
70016 10032 20030
10 A.M.
Weather: Broken stratocumulus
Temperature: 34F; Dew Point: 31F; Relative Humidity: 89%
Wind: WNW @ 7G13 kts
Sea-level pressure: 1019.0 mb; 30.09 in. Hg: rising then
more rapidly
Visibility: 30 miles, thin fog
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 10 BKN 30 190/34/31/3007G13/009/ THN F ALQDS/ 8/500 53006
1 P.M.
Weather: Scattered stratocumulus, broken altocumulus and cirrus
Temperature: 39F; Dew Point: 34F; Relative Humidity: 82%
Wind: NW @ 8G13 kts
Sea-level pressure: 1015.6 mb; 29.99 in. Hg: falling unsteadily
Visibility: 40 miles
6-hr Max temp: 40F
6-hr Min temp: 32F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 30 SCT 80 BKN 250 BKN 40 171/39/34/3208G13/003/
8/552 57019 10040 20032
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SUMMARY FOR FRIDAY, JANUARY 6, 2023
TEMPERATURE (DEGREES F)
MAX…….35 NORMAL…..35
MIN…….31 NORMAL…..20
MEAN……33 NORMAL…..28
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….+5
TOTAL DEPARTURE FOR THE MONTH……………….+72 [+11.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………32 DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE MONTH…………..149 DEPARTURE…….-73
TOTAL HEATING UNITS FOR THE SEASON…………2059 DEPARTURE……-373
TOTAL HEATING UNITS LAST SEASON TO DATE…….2074 DEPARTURE…….-15
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….19 NNE @ 2:02 A.M.
VECTOR #2 (Instantaneous)..20 @ 2:02 A.M.
DAVIS #2 ………………18 NE @ 1:00 A.M.
RMY #2 (Instantaneous)…..19 NNE @ 2:02 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………………12 NNE @ 6:22 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..13 @ 6:16 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………13 NE @ 6:17 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..13 NNE @ 6:16 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…….7.3 NNE [174 total miles]
VECTOR #2……………..7.7
DAVIS #2………………N/A
RMY #2………………..8.0 N
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……..0.16 DEPARTURE…..+0.00
TOTAL PRECIPITATION FOR THE MONTH…………..1.32 DEPARTURE…..+0.40
TOTAL PRECIPITATION FOR THE YEAR……………1.32 DEPARTURE…..+0.40
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..1.0 DEPARTURE……-0.4
TOTAL SNOWFALL FOR THE MONTH………………..1.0 DEPARTURE……-2.2
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…….3.7 DEPARTURE…..-14.6
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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/…/.. 39 WNW VEC1 N/A RMY 60
1/2 49/33/41/+13/0.00/0.0/…/.. 39 WNW VEC1 N/A RMY 39
1/3 48/37/43/+15/…./0.0/000/00 23 S VEC1 N/A RMY 24
1/4 43/37/40/+12/…./0.0/000/00 23 NE VEC1 N/A RMY 23
1/5 43/33/38/+10/…./0.0/000/00 34 ENE VEC1 N/A RMY 37
1/6 35/31/33/+5/…./0.0/000/00 19 NNE VEC1 N/A RMY 19
1/7 The low since midnight is 30F, 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 7
HIGH 60F IN 1930
LOW -8F IN 2018
PRECIP 1.97 INS. IN 1977
SNOWFALL 16.0 INS. IN 1977
PEAK GUST 74 MPH NW IN 1968
RECORDS FOR JANUARY 8
HIGH 65F IN 2008
LOW -8F IN 1968
PRECIP 1.70 INS. IN 1958, 1979
SNOWFALL 12.5 INS. IN 1996
PEAK GUST 77 MPH NNW IN 1958
TODAY’S REPORT PREPARED BY: Benjamin Turner
