Tuesday, February 7, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, FEBRUARY 7, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0651E
SUNSET: 1706E
SUNNY START, THEN INCREASING CLOUD COVER, CHILLIER TODAY…
We started the day with brilliant sunshine, but cold and
blustery conditions. As the day wore on, clouds invaded
the sky from both the east (low clouds) and from the west
(high clouds). As such, this afternoon has been a mainly
cloudy affair.
Temperatures didn’t warm too much today with the high
only getting into the low 30s.
The wind was busy this morning out of the north-northeast,
but gradually diminished by late morning. Wind has been
down right light this afternoon as it gradually veers
to more of a southeasterly direction. The average speed
for the day is around 9mph.
Visibility started off excellent with 70-80 miles being seen.
But as the moisture content of the air increased this
afternoon, it slipped back to around 60 miles.
The high so far today is 31F degrees, which is 5 degrees
below the normal maximum of 36F. The low since midnight is
22F degrees, which is 4 degrees above the normal minimum
of 18F.
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Today’s Observations:
7 A.M.
Weather: Clear, few stratocumulus offshore distant NE-SE,
few cirrus distant west
Temperature: 22F; Dew Point: 4F; Relative Humidity: 45%
Wind: NNE @ 9G18 kts
Sea-level pressure: 1028.3 mb; 30.37 in. Hg: rising, then more slowly
Visibility: 70 miles
6-hr Max temp: 28F
6-hr Min temp: 22F
24-hr Precip: 0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 CLR 70 283/22/4/0209G18/037/ FEW SC OFFSHR DSNT NE-SE
FEW CI DSNT W/ 8/501 51024 10028 20022
10 A.M.
Weather: Scattered stratocumulus, thin scattered cirrus
Temperature: 28F; Dew Point: 15F; Relative Humidity: 58%
Wind: NE @ 7 kts
Sea-level pressure: 1029.5 mb; 30.40 in. Hg: rising, then more rapidly
Visibility: 70 miles
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 30 SCT 250 -SCT 70 295/28/15/0407/040/ 8/501 53012
1 P.M.
Weather: Broken stratocumulus, broken cirrus
Temperature: 29F; Dew Point: 20F; Relative Humidity: 69%
Wind: ENE @ 8 kts
Sea-level pressure: 1026.9 mb; 30.32 in. Hg: falling, then more rapidly
Visibility: 60 miles
6-hr Max temp: 31F
6-hr Min temp: 22F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 E20 BKN 250 BKN 60 269/29/20/0708/032/ 8/504 58026
10031 20022
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SUMMARY FOR MONDAY, FEBRUARY 6, 2023
TEMPERATURE (DEGREES F)
MAX…….47 NORMAL…..35
MIN…….30 NORMAL…..18
MEAN……39 NORMAL…..27
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+12
TOTAL DEPARTURE FOR THE MONTH………………..-25 [-4.4 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………26 DEPARTURE…….-12
TOTAL HEATING UNITS FOR THE MONTH…………..257 DEPARTURE…….+25
TOTAL HEATING UNITS FOR THE SEASON…………3080 DEPARTURE……-555
TOTAL HEATING UNITS LAST SEASON TO DATE…….3361 DEPARTURE……-281
PEAK WIND GUST (MPH):
420C (Official)…………28 NE @ 11:03 P.M.
VECTOR #2 (1-Sec)……….30 @ 8:40 P.M.
DAVIS #1……………….N/A
DAVIS #2 ………………26 NNE @ 10:20 P.M.
RMY #2 (Instantaneous)…..29 NNE @ 9:54 P.M.
MERLIN…………………27 N
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………18 NE @ 11:05 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..20 @ 11:29 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………N/A
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………19 N @ 11:29 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..19 NNE @ 11:29 P.M.
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……10.5 N [253 total miles]
VECTOR #2…………….11.0
DAVIS #1……………..N/A
DAVIS #2……………..10.7 NNE
RMY #2……………….10.9 NNW
RMY #1……….OUT OF SERVICE D/T RENOVATIONS
VECTOR #1…….OUT OF SERVICE D/T RENOVATIONS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH………….TRACE DEPARTURE…..-0.82
TOTAL PRECIPITATION FOR THE YEAR……………6.79 DEPARTURE…..+1.47
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-4.1
TOTAL SNOWFALL FOR THE SEASON (2022-2023)……14.9 DEPARTURE…..-22.9
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PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 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
2/1 30/18/24/-2/T/T/…/.. 17 NW VEC1 N/A RMY 20
2/2 38/19/29/+3/0.00/0.0/…/.. 25 SW VEC1 N/A RMY 29
2/3 28/-11/9/-17/T/T/…/.. 56 WNW VEC1 N/A RMY 64
2/4 14/-14/0/-26/0.00/0.0/…/.. 45 NW VEC1 N/A RMY 51
2/5 49/14/32/+5/0.00/0.0/…/.. 38 SW VEC1 N/A RMY 43
2/6 47/30/39/+12/0.00/0.0/…/.. 28 NE VEC1 N/A RMY 29
2/7 The low since midnight is 22F, the daily normal low is 18F
DAILY RECORDS
02/03/2023: NEW RECORD MINIMUM TEMPERATURE OF -11F,
THIS BEATS THE OLD RECORD OF -7F SET IN 1955
02/04/2023: NEW RECORD MINIMUM TEMPERATURE OF -14F,
THIS BEATS THE OLD RECORD OF -4F SET IN 1886 AND 1908
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR FEBRUARY 7
HIGH 53F IN 2020
LOW -8F IN 1910
PRECIP 2.12 INS. IN 1983
SNOWFALL 17.1 INS. IN 1978 [BLIZZARD OF 1978]
PEAK GUST 87e MPH SSE IN 1951
RECORDS FOR FEBRUARY 8
HIGH 59F IN 1933
LOW -9F IN 1934
PRECIP 1.86 INS. IN 2013
SNOWFALL 16.1 INS. IN 2013
PEAK GUST 63e MPH NE IN 1945, NE IN 2013
TODAY’S REPORT PREPARED BY: Matt Douglas
