Thursday, January 12, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
THURSDAY, JANUARY 12, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0712E
SUNSET: 1633E
OVERCAST WITH SOME LIGHT SNOW COMING THROUGH BEFORE
A TEMPERATURE RISE INTO THE MID-30’S….
Today we observed overcast conditions with light snow beginning
around 10 A.M. All snow that fell this morning and last night
left only trace amounts. Wind is southeasterly with an average
speed of 10 mph with a few gusts around 17 mph. Snow changed to
rain as warm air moved in from the south. Rain so far today has
totaled 0.01 inches.
Snow amounts have been underwhelming so far, with a monthly
deficit of 5 inches and a seasonal deficit of 17 inches!
The high so far today is 35F, which is the same as
the normal maximum. The low since midnight is 28F,
which is 9 degrees above the normal minimum of 19F.
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Today’s Observations:
7 A.M.
Weather: Thin fog layer SE-W-E, broken stratocumulus NNE-E, overcast altostratus
Temperature: 32F; Dew Point: 32F; Relative Humidity: 100%
Wind: ESE @ 7 kts
Sea-level pressure: 1025.8 mb; 30.29 in. Hg: falling then rising
Visibility: 10 miles due to thin fog, except 40 miles E-SE
6-hr Max temp: 32F
6-hr Min temp: 29F
24-hr Precip: Trace
24-hr Snowfall: Trace
Snow Depth: Trace
BHO SA 1155 35 BKN 75 OVC 10 258/32/32/1107/029/ THN F SE-W-E VSBY
40 E-SE NEW SNW PST 24 HRS TRACE/ 8/52/ 4/000 55006 70000 10032 20029
10 A.M.
Weather: Thin fog layer SE-W-E, light snow, few lower cumulus NNE-E, overcast stratus
Temperature: 33F; Dew Point: 32F; Relative Humidity: 95%
Wind: SE @ 8 kts
Sea-level pressure: 1026.1 mb; 30.30 in. Hg: rising then falling
Visibility: 20 miles due to thin fog, except 40 miles E-SE
3-hr Precip: Trace
3-hr Snowfall: Trace
BHO SA 1455 40 OVC 20S- 261/33/32/1408/030/ THN F SE-W-E FEW LWR CU
NNE-E VSBY 40 E-SE NEW SNW PST 3 HRS TRACE/ 8/6// 50003 6000/
1 P.M.
Weather: Thin fog all quadrants, overcast stratus
Temperature: 35F; Dew Point: 35F; Relative Humidity: 98%
Wind: SE @ 9 kts
Sea-level pressure: 1022.8 mb; 30.20 in. Hg: falling then falling more rapidly
Visibility: 20 miles
6-hr Max temp: 35F
6-hr Min temp: 31F
6-hr Precip: 0.01 ins.
6-hr Snowfall: Trace
Snow Depth: 0 ins.
BHO SA 1755 25 OVC 20 228/35/35/1409/020/ THN F ALQDS NEW SNW PST 6
HRS 0.1 IN/ 8/6// 58033 6001/ 10035 20031
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SUMMARY FOR WEDNESDAY, JANUARY 11, 2023
TEMPERATURE (DEGREES F)
MAX…….33 NORMAL…..35
MIN…….18 NORMAL…..19
MEAN……26 NORMAL…..27
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..-1
TOTAL DEPARTURE FOR THE MONTH……………….+81 [+7.2 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………39 DEPARTURE……..+1
TOTAL HEATING UNITS FOR THE MONTH…………..318 DEPARTURE…….-94
TOTAL HEATING UNITS FOR THE SEASON…………2228 DEPARTURE……-394
TOTAL HEATING UNITS LAST SEASON TO DATE…….2289 DEPARTURE…….-61
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….19 N @ 6:16 A.M.
VECTOR #2 (Instantaneous)..19 @ 6:16 A.M.
DAVIS #2 ………………18 N @ 6:14 A.M.
RMY #2 (Instantaneous)…..18 N @ 6:16 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………………14 N @ 6:16 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15 @ 6:25 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………14 N @ 6:14 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 N @ 6:29 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…….8.3 N [198 total miles]
VECTOR #2……………..8.9
DAVIS #2………………8.6 NE
RMY #2………………..8.8 NNE
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…..-0.40
TOTAL PRECIPITATION FOR THE YEAR……………1.26 DEPARTURE…..-0.40
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………TRACE DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………..1.1 DEPARTURE……-5.0
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…….3.8 DEPARTURE…..-17.4
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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 33/18/26/-1/…./…/…/.. 19 N VEC1 N/A RMY 18
1/12 The low since midnight is 28F, 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 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
RECORDS FOR JANUARY 13
HIGH 60F IN 2018
LOW -11F IN 1912
PRECIP 1.54 INS. IN 1979
SNOWFALL 12.6 INS. IN 1964
PEAK GUST 74 MPH NE IN 1964
TODAY’S REPORT PREPARED BY: Benjamin Turner and Kaitlin Geagan
