Monday, January 8, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, JANUARY 8, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0713E
SUNSET: 1629E
MOSTLY SUNNY SKIES, A LITTLE BREEZY ON THE HILL TODAY….
Today has been a beautiful day on the hill, with bright,
abundant sunshine throughout the morning and afternoon, which
made for a scenic postcard style backdrop with all of the trees
and ground covered in snow. The temperatures have not been able
to get above the freezing point, though the sun has been a little
successful in melting some snow and ice off of the observatory
windows and roof.
The storm total for the observatory was 13.2 inches of snow with
1.67 inches of liquid equivalent. Snow was continuous for the day
yesterday and slowed down around 3pm but continued very light until
just after 10pm. As of our 1pm observation today, we have about
10 inches of snow depth.
Winds started off relatively low this morning but picked up a
little during the late morning. The average speed for the day so
far has been around 9mph. The peak gust for the day has been around
28mph, occurring just after 10am.
Visibility was around 30 miles at the first observation and by this
afternoon we had improved to 60 miles.
The maximum temperature so far today is 30F degrees, this is 5
degrees below the normal high of 35F. The minimum temperature
so far since midnight is 22F degrees, this is 3 degrees above
the normal low of 19F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Scattered stratocumulus
Temperature: 24F; Dew Point: 22F; Relative Humidity: 92%
Wind: NW @ 8 kts
Sea-level pressure: 1020.9 mb; 29.41 in. Hg: rising steadily
Visibility: 30 miles
6-hr Max temp: 24F
6-hr Min temp: 21F
24-hr Precip: 0.84 inches
24-hr Snowfall: 6.4 inches
Snow Depth: 11 inches
BHO SA 1155 30 SCT 30 209/24/22/3208/941/ TOTAL NEW SNW
PST 24 HRS 6.4 INS/ 8/500 4/011 52036 70084 10024 20021
10 A.M.
Weather: Clear, few stratocumulus all quadrants
Temperature: 27F; Dew Point: 24F; Relative Humidity: 90%
Wind: NW @ 10G16 kts
Sea-level pressure: 1025.2 mb; 30.27 in. Hg: rising, then more
slowly
Visibility: 50 miles
3-hr Precip: 0.0 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 50 252/27/24/3210G16/027/ FEW SC ALQDS/ 8/500
51043
1 P.M.
Weather:
Temperature: 30F; Dew Point: 27F; Relative Humidity: 88%
Wind: NW @ 7 kts
Sea-level pressure: 1025.9 mb; 30.29 in. Hg: rising, then steady
Visibility: 60 miles
6-hr Max temp: 30F
6-hr Min temp: 24F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 10 inches
BHO SA 1755 30 SCT 60 259/30/27/3207/029/ 8/500 4/010 51007
10030 20024
————————————————————–
SUMMARY FOR SUNDAY, JANUARY 7, 2024
TEMPERATURE (DEGREES F)
MAX…….33 NORMAL…..35
MIN…….21 NORMAL…..19
MEAN……27 NORMAL…..27
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………….0
TOTAL DEPARTURE FOR THE MONTH…………………..+11 [+1.4 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………38 DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH…………..248 DEPARTURE…….-12
TOTAL HEATING UNITS FOR THE SEASON…………2143 DEPARTURE……-327
TOTAL HEATING UNITS LAST SEASON TO DATE…….2089 DEPARTURE…….+54
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)……….E38 ENE @ 11:50 A.M.
VECTOR #1 (1-Sec)……….37 ENE @ 11:37 A.M.
VECTOR #2 (1-Sec)……….38 ENE @ 11:11 A.M.
DAVIS #1……………….38 ENE @ 07:36 A.M.
DAVIS #2 ………………34 E @ 06:20 A.M.
RMY #1 (Instantaneous)…..42 ENE @ 07:36 A.M.
RMY #2 (Instantaneous)…..43 ENE @ 11:11 A.M.
MERLIN…………………35 ENE
RICHARDS (C5C) (Inst)……38 @ 11:10 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………24 ENE @ 11:11 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..22 @ 11:51 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..25 @ 07:38 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………24 ENE @ 10:11 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………24 E @ 07:38 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..24 ENE @ 07:38 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 ENE @ 11:12 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………23 @ 11:12 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……15.0 ENE [360 total miles]
VECTOR #1…………….14.4
VECTOR #2…………….15.5
DAVIS #1……………..M
DAVIS #2……………..M
RMY #1……………….16.0 NE
RMY #2……………….16.2 NE
RICHARDS (C5C)………..M
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.84 DEPARTURE…..+0.69
TOTAL PRECIPITATION FOR THE MONTH…………..1.67 DEPARTURE…..+0.60
TOTAL PRECIPITATION FOR THE YEAR (2024)……..1.67 DEPARTURE…..+0.60
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..6.4 DEPARTURE……+5.8
TOTAL SNOWFALL FOR THE MONTH……………….13.2 DEPARTURE……+9.4
TOTAL SNOWFALL FOR THE SEASON (2023-2024)……13.5 DEPARTURE……-5.4
————————————————————–
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 34/24/29/+1/0.11/0.2/…/.. 36 E VEC1 36 E RMY 36
1/7 33/21/27/0/0.84/6.4/…/.. 38 ENE VEC1 37 ENE RMY 42
1/8 The low since midnight is 22F, the daily normal low is 19F
————————————————————–
JANUARY DAILY RECORDS TO DATE
NONE.
————————————————————–
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
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
RECORDS FOR JANUARY 9
HIGH 62F IN 1937
LOW -9F IN 1968
PRECIP 3.00 INS. IN 1956
SNOWFALL 10.0 INS. IN 1904
PEAK GUST 101e MPH SE IN 1978 [RECORD FOR MONTH]
TODAY’S REPORT PREPARED BY: Amanda Joly
