Saturday, January 6, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SATURDAY, JANUARY 6, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0713E
SUNSET: 1627E
MOSTLY CLOUDY AND SEASONABLE AHEAD OF NEXT STORM SYSTEM….
Cloudiness has been the theme today, with only a brief peek of
sunshine at the 10am observation. Ahead of the next storm system,
we have had seasonable temperatures and very light winds.
Temperatures have been a touch below normal today, beginning in the
mid 20s and rising to only the low 30s by early afternoon. The dew point
has remained near 20 throughout the day.
Winds have been very light, especially since 8am. The average so far
is only 5mph, beginning the morning out of the west, and shifting to
out of the east by noontime. The peak gust is only 18mph, occurring
around 1am.
Visibility has not changed much, and has held at about 40 miles.
The maximum temperature so far today is 33F degrees, this is 2
degrees below the normal high of 35F. The minimum temperature
since midnight is 24F degrees, this is 4 degrees above the normal
low of 20F.
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Today’s Observations:
7 A.M.
Weather: Overcast stratus, few lower stratocumulus distant NNE-ENE,
few breaks in overcast distant NNW-E and distant SE-SW
Temperature: 26F; Dew Point: 20F; Relative Humidity: 78%
Wind: W @ 4 kts, wind light
Sea-level pressure: 1023.6 mb; 30.23 in. Hg: rising, then more slowly
Visibility: 40 miles
6-hr Max temp: 26F
6-hr Min temp: 24F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 E30 OVC 40 236/26/20/2704/023/ FEW LWR SC DSNT NNE-ENE
FEW BINOVC DSNT NNW-E AND DSNT SE-SW WND LGT/ 8/6// 51011 10026 20024
10 A.M.
Weather: Broken stratus, broken cirrocumulus, thin broken cirrus,
few stratocumulus NNE-E and distant NW-NNW
Temperature: 30F; Dew Point: 21F; Relative Humidity: 67%
Wind: Calm
Sea-level pressure: 1024.3 mb; 30.25 in. Hg: rising, then more rapidly
Visibility: 40 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E32 BKN 220 BKN 250 -BKN 40 243/30/21/0000/025/
FEW SC NNE-E AND DSNT NW-NNW WND CALM/ 8/609 53007
1 P.M.
Weather: Broken stratocumulus, overcast altostratus
Temperature: 32F; Dew Point: 21F; Relative Humidity: 68%
Wind: ENE @ 5 kts, wind light
Sea-level pressure: 1021.5 mb; 30.16 in. Hg: falling, then
more rapidly
Visibility: 40 miles
6-hr Max temp: 33F
6-hr Min temp: 26F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E30 BKN 160 OVC 40 215/32/21/0705/016/ WND LGT/
8/52/ 58028 10033 20026
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SUMMARY FOR FRIDAY, JANUARY 5, 2024
TEMPERATURE (DEGREES F)
MAX…….32 NORMAL…..36
MIN…….17 NORMAL…..20
MEAN……25 NORMAL…..28
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………-3
TOTAL DEPARTURE FOR THE MONTH…………………..+10 [+1.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………40 DEPARTURE……..+3
TOTAL HEATING UNITS FOR THE MONTH…………..174 DEPARTURE…….-11
TOTAL HEATING UNITS FOR THE SEASON…………2069 DEPARTURE……-325
TOTAL HEATING UNITS LAST SEASON TO DATE…….2027 DEPARTURE…….+42
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all Main Tower.
E=Estimated
F420C (Official)……….E40 NW @ 02:19 P.M.
VECTOR #1 (1-Sec)……….39 NW @ 02:19 P.M.
VECTOR #2 (1-Sec)……….42 NW @ 01:35 P.M.
DAVIS #1……………….37 WNW @ 02:19 P.M.
DAVIS #2 ………………38 NW @ 01:35 P.M.
RMY #1 (Instantaneous)…..39 NW @ 02:19 P.M.
RMY #2 (Instantaneous)…..45 NW @ 01:35 P.M.
MERLIN…………………36 NW
RICHARDS (C5C) (Inst)……38 @ 02:19 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………26 NW @ 01:06 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..25 @ 02:21 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..26 @ 02:17 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………26 NW @ 02:21 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………26 NW @ 02:17 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..25 NW @ 02:21 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..25 NW @ 02:17 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………25 @ 02:21 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……13.6 NW [326 total miles]
VECTOR #1…………….13.1
VECTOR #2…………….14.4
DAVIS #1……………..13.6 NW
DAVIS #2……………..13.9 NW
RMY #1……………….12.8 WNW
RMY #2……………….13.9 NW
RICHARDS (C5C)………..13.5
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH………….TRACE DEPARTURE…..-0.76
TOTAL PRECIPITATION FOR THE YEAR (2024)…….TRACE DEPARTURE…..-0.76
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.5
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-2.7
TOTAL SNOWFALL FOR THE SEASON (2023-2024)…….0.3 DEPARTURE…..-17.5
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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
PEAK GUST: F420C (Official)
VEC1: Vector #1 1-second gust
RMY: R.M. Young #1 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 37/25/31/+2/0.00/0.0/296/54 15 N VEC1 14 N RMY 15
1/2 39/19/29/+1/0.00/0.0/550/100 17 WNW VEC1 17 WNW RMY 17
1/3 42/25/34/+6/0.00/0.0/347/63 20 WNW VEC1 21 WNW RMY 21
1/4 42/21/32/+4/T/T/…/.. 37 NNW VEC1 36 NNW RMY 39
1/5 32/17/25/-3/0.00/0.0/…/.. 40 NW VEC1 39 NW RMY 39
1/6 The low since midnight is 24F, the daily normal low is 20F
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JANUARY DAILY RECORDS TO DATE
NONE.
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR JANUARY 6
HIGH 66F IN 2007
LOW -14F IN 1896
PRECIP 3.10 INS. IN 1889 [RECORD FOR MONTH]
SNOWFALL 5.2 INS. IN 2005
PEAK GUST 70 MPH WNW IN 1959
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
TODAY’S REPORT PREPARED BY: Joshua Polen
