Saturday, January 14, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SATURDAY, JANUARY 14, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0711E
SUNSET: 1636E
FOGGY WITH A WINTRY MIX ATOP GREAT BLUE HILL….
Today we observed overcast conditions with very light ice pellets,
freezing rain, and light snow at times. Rain totals were 0.14 inches
overnight, with an additional 0.02 inches falling between 7 A.M. and
1 P.M. Wind is northerly with an average speed of 10 mph with frequent
gusts around 20 mph. The highest gust today was almost 23 mph, seen
earlier this morning.
A trace of snow was seen overnight and throughout the day.
The high so far today is 31F, which is 20 degrees above
the normal maximum of 34F. The low since midnight is 29F,
which is 11 degrees above the normal minimum of 18F.
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Today’s Observations:
7 A.M.
Weather: Light freezing rain, thin glaze all surfaces
Temperature: 31F; Dew Point: 31F; Relative Humidity: 100%
Wind: N @ 7 kts
Sea-level pressure: 1007.1 mb; 29.74 in. Hg: rising, then more quickly
Visibility: 1/16th mile, fog
6-hr Max temp: 34F
6-hr Min temp: 30F
24-hr Precip: 0.14 ins.
24-hr Snowfall: Trace
Snow Depth: 0 ins.
BHO SA 1155 X W3 1/16ZR-F 071/31/31/3607/974/ THN GLZ ALL SFCS NEW SNW
PST 24 HRS TRACE/ 8//// 53013 70014 10034 20030
10 A.M.
Weather: Very light snow, overcast stratus, thin glaze all surfaces
Temperature: 31F; Dew Point: 31F; Relative Humidity: 100%
Wind: NNE @ 10G18 kts
Sea-level pressure: 1009.2 mb; 29.81 in. Hg: rising unsteadily
Visibility: 5 miles due to thin fog
3-hr Precip: 0.02 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 10 OVC 5S-F 092/31/31/0210G18/981/ THN GLZ ALL SFCS
NEW SNW PST 3 HRS TRACE PCPN VRY LGT/ 8/6// 52021 6002/
1 P.M.
Weather: Overcast stratus, very light ice pellets, thin
glaze all surfaces
Temperature: 30F; Dew Point: 30F; Relative Humidity: 100%
Wind: N @ 7G13 kts
Sea-level pressure: 1009.4 mb; 29.82 in. Hg: rising then falling
Visibility: 4 miles, fog
6-hr Max temp: 31F
6-hr Min temp: 29F
6-hr Precip: 0.02 ins.
6-hr Snowfall: Trace
Snow Depth: 0 ins.
BHO SA 1755 10 OVC 4IP-F 094/30/30/3607G13/982/ THN GLZ ALL SFCS NEW
SNW PST 6 HRS TRACE PCPN VRY LGT/ 8/6// 55002 6002/ 10031 20029
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SUMMARY FOR FRIDAY, JANUARY 13, 2023
TEMPERATURE (DEGREES F)
MAX…….55 NORMAL…..35
MIN…….36 NORMAL…..18
MEAN……46 NORMAL…..26
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….+20
TOTAL DEPARTURE FOR THE MONTH……………….+112 [+8.4 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………19 DEPARTURE…….+20
TOTAL HEATING UNITS FOR THE MONTH…………..364 DEPARTURE……-125
TOTAL HEATING UNITS FOR THE SEASON…………2274 DEPARTURE……-425
TOTAL HEATING UNITS LAST SEASON TO DATE…….2359 DEPARTURE…….-85
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….54 SSW @ 10:58 P.M.
VECTOR #2 (Instantaneous)..60 @ 10:58 P.M.
DAVIS #2 ………………60 S @ 11:13 P.M.
RMY #2 (Instantaneous)…..60 SSW @ 10:58 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………………42 SSW @ 2:49 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..39 @ 2:48 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………40 S @ 6:05 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..40 SSW @ 2:58 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…….12.1 SE [470 total miles]
VECTOR #2……………..12.2
DAVIS #2………………11.9 SE
RMY #2………………..12.3 SE
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……..0.14 DEPARTURE…..-0.01
TOTAL PRECIPITATION FOR THE MONTH…………..2.24 DEPARTURE…..+0.28
TOTAL PRECIPITATION FOR THE YEAR……………2.24 DEPARTURE…..+0.28
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………TRACE DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE MONTH………………..1.1 DEPARTURE……-6.0
TOTAL SNOWFALL FOR THE SEASON (2022-2023)…….3.8 DEPARTURE…..-18.4
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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/T/0.1/…/.. 27 NW VEC1 N/A RMY 27
1/10 41/25/33/6/…./0.0/…/.. 28 NW VEC1 N/A RMY 28
1/11 33/18/26/-1/…./0.1/…/.. 19 N VEC1 N/A RMY 18
1/12 48/28/38/+11/…./0.1/…/.. 45 S VEC1 N/A RMY 46
1/13 55/36/46/+20/…./…/…/.. 54 SSW VEC1 N/A RMY 56
1/14 The low since midnight is 30F, the daily normal low is 18F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR JANUARY 14
HIGH 65F IN 1995
LOW -12F IN 1914
PRECIP 1.45 INS. IN 2008
SNOWFALL 10.3 INS. IN 2008
PEAK GUST 68 MPH WNW IN 1976, S IN 2005
RECORDS FOR JANUARY 15
HIGH 64F IN 1995
LOW -16F IN 1957 [RECORD LOW FOR MONTH]
PRECIP 2.63 INS. IN 1958
SNOWFALL 8.8 INS. IN 1983
PEAK GUST 69e MPH SE IN 1940
TODAY’S REPORT PREPARED BY: Benjamin Turner and Samantha Richard
