Tuesday, January 10, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, JANUARY 10, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0713E
SUNSET: 1631E
A WARM MIDWINTER’S DAY WITH EXCELLENT VISIBILITY AND
PARTLY CLOUDY SKIES….
Today we observed improving conditions as cloud cover
decreased since this morning. Visibility was an excellent
85 miles since the 10 A.M. observation. Wind is 10 mph
on average with a daily max so far of 25 mph from the
northwest.
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 -16.2 inches so far.
The high so far today is 41F, which is 6 degrees above
the normal maximum of 35F. The low since midnight is 27F,
which is 8 degrees above the normal minimum of 19F.
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Today’s Observations:
7 A.M.
Weather: Overcast stratocumulus, few breaks NE-E-SE
Temperature: 32F; Dew Point: 27F; Relative Humidity: 80%
Wind: WNW @ 9G15 kts
Sea-level pressure: 1013.3 mb; 29.92 in. Hg: rising unsteadily
Visibility: 45 miles
6-hr Max temp: 32F
6-hr Min temp: 27F
24-hr Precip: Trace
24-hr Snowfall: Trace
Snow Depth: Trace
BHO SA 1155 50 OVC 45 133/32/27/3009G15/992/ FEW BINOVC NE-E-SE NEW
SNW PST 24 HRS TRACE/ 8/500 52011 70000 10032 20027
10 A.M.
Weather: Broken stratocumulus, overcast cirrostratus, few breaks in overcast
Temperature: 35F; Dew Point: 24F; Relative Humidity: 63%
Wind: NW @ 14G24 kts
Sea-level pressure: 1015.3 mb; 29.98 in. Hg: rising, then more slowly
Visibility: 85 miles
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 50 BKN 200 OVC 85 153/35/24/3214G24/998/ FEW BINOVC
ALQDS/ 8/508 51020
1 P.M.
Weather: Scattered stratocumulus, broken cirrus
Temperature: 41F; Dew Point: 23F; Relative Humidity: 49%
Wind: NW @ 9G14 kts
Sea-level pressure: 1014.9 mb; 29.97 in. Hg: falling then
rising
Visibility: 85 miles, hazy
6-hr Max temp: 41F
6-hr Min temp: 32F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 50 SCT 250 BKN 85 149/41/23/3209G14/997/ 8/502 55004
10041 20032
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SUMMARY FOR MONDAY, JANUARY 9, 2023
TEMPERATURE (DEGREES F)
MAX…….42 NORMAL…..35
MIN…….26 NORMAL…..19
MEAN……34 NORMAL…..27
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……. +7
TOTAL DEPARTURE FOR THE MONTH……………….+88 [+8.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………31 DEPARTURE……..-7
TOTAL HEATING UNITS FOR THE MONTH…………..247 DEPARTURE…….-89
TOTAL HEATING UNITS FOR THE SEASON…………2157 DEPARTURE……-389
TOTAL HEATING UNITS LAST SEASON TO DATE…….2162 DEPARTURE…….-40
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….27 NNW @ 9:14 P.M.
VECTOR #2 (Instantaneous)..28 @ 7:52 P.M.
DAVIS #2 ………………26 WNW @ 9:14 P.M.
RMY #2 (Instantaneous)…..28 NNW @ 9:14 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………………18 WNW @ 11:16 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18 @ 7:52 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………18 N @ 7:52 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..18 WNW @ 7:52 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…….10.7 WNW [256 total miles]
VECTOR #2……………..11.5
DAVIS #2………………11.5 W
RMY #2………………..11.4 WNW
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…….TRACE DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH…………..1.26 DEPARTURE…..-0.10
TOTAL PRECIPITATION FOR THE YEAR……………1.26 DEPARTURE…..-0.10
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……-3.8
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…….3.8 DEPARTURE…..-16.2
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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 The low since midnight is 27F, 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 10
HIGH 58F IN 2016
LOW -7F IN 2004
PRECIP 2.74 INS. IN 1935
SNOWFALL 8.0 INS. IN 1896
PEAK GUST 73e SE IN 1977
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
TODAY’S REPORT PREPARED BY: Benjamin Turner and Andrew Sullivan
