Sunday, October 6, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, OCTOBER 6, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0547E
SUNSET: 1716E
PARTLY CLOUDY AND COOL WITH GOOD VISIBILITY….
Today was cool with a light wind under 10 mph shifting from north to south
as the day went on. We observed partly cloudy skies with a good visibility
of 70 miles at each observation. Dew points stayed in the mid 40’s as
temperatures made their way into the mid 60’s, making for pleasurable
hiking weather.
Despite the trace of rain that fell yesterday, weather has been on the
drier side lately. According to the drought monitor, most of Massachusetts
is abnormally dry with a moderate drought being seen between the north shore
and New Hampshire.
The maximum temperature so far today is 65F, which is the same as
the normal high. The minimum temperature since midnight is 47F,
which is a degree below the normal low of 48F.
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Today’s Observations:
7 A.M.
Weather: Scattered stratocumulus and cirrostratus, few
lower stratus fractus
Temperature: 52F; Dew Point: 44F; Relative Humidity: 73%
Wind: ENE @ 8 kts
Sea-level pressure: 1021.7 mb; 30.17 in. Hg: rising then falling
Visibility: 70 miles
6-hr Max temp: 52F
6-hr Min temp: 47F
24-hr Precip: Trace
BHO SA 1155 20 SCT 250 SCT 70 217/52/44/0708/017/ FEW LWR STFRA ALQDS/
8/505 50002 70000 10052 20047
10 A.M.
Weather: Scattered stratocumulus and cirrostratus
Temperature: 61F; Dew Point: 48F; Relative Humidity: 62%
Wind: ENE @ 7 kts
Sea-level pressure: 1021.9 mb; 30.18 in. Hg: rising then falling
Visibility: 70 miles
3-hr Precip: 0.00 inches
BHO SA 1455 20 SCT 250 SCT 70 219/61/48/0707/018/ 8/505 50002
1 P.M.
Weather: Scattered cumulus and cirrus
Temperature: 65F; Dew Point: 47F; Relative Humidity: 52%
Wind: SE @ 7 kts
Sea-level pressure: 1019.5 mb; 30.11 in. Hg: falling, then more rapidly
Visibility: 70 miles
6-hr Max temp: 65F
6-hr Min temp: 52F
6-hr Precip: 0.00 inches
BHO SA 1755 30 SCT 250 SCT 70 195/65/47/1307/011/ 8/101 58024 10065 20052
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SUMMARY FOR SATURDAY, OCTOBER 5, 2024
TEMPERATURE (DEGREES F)
MAX…….72 NORMAL…..65
MIN…….52 NORMAL…..48
MEAN……62 NORMAL…..57
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+5
TOTAL DEPARTURE FOR THE MONTH…………………….+21 [+3.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….3 DEPARTURE……..-8
TOTAL HEATING UNITS FOR THE MONTH……………17 DEPARTURE…….-24
TOTAL HEATING UNITS FOR THE SEASON…………..87 DEPARTURE…….-72
TOTAL HEATING UNITS LAST SEASON TO DATE……..108 DEPARTURE…….-21
COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE MONTH…………….0 DEPARTURE……..-3
TOTAL COOLING UNITS FOR THE SEASON………….757 DEPARTURE…….+84
TOTAL COOLING UNITS LAST SEASON TO DATE……..703 DEPARTURE…….+54
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all on Main Tower.
E=Estimated
F420C (Official)……….E29 NNW @ 01:59 P.M.
VECTOR #1 (1-Sec)……….23 N @ 02:00 P.M.
VECTOR #2 (1-Sec)……….24 NNW @ 01:58 P.M.
DAVIS #1……………….22 N @ 01:56 P.M.
DAVIS #2 ………………22 NNW @ 01:01 P.M.
RMY #1 (Instantaneous)…..27 NNW @ 02:00 P.M.
RMY #2 (Instantaneous)…..24 N @ 02:10 P.M.
MERLIN…………………21 NW
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 NNW @ 02:02 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..16 @ 02:07 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 @ 02:11 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 NW @ 02:00 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 N @ 02:11 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..15 NNW @ 02:00 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..18 N @ 02:10 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..8.8 NNW [212 total miles]
VECTOR #1………………9.2
VECTOR #2………………9.6
DAVIS #1……………….9.2 NW
DAVIS #2………………10.3 SSW
RMY #1…………………9.1 NNW
RMY #2…………………9.6 N
RICHARDS (C5C)………….OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.16
TOTAL PRECIPITATION FOR THE MONTH………….TRACE DEPARTURE…..-0.66
TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.04 DEPARTURE…..+3.71
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PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/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
10/1 66/55/61/+3/T/134/19 28 ENE VEC1 28 ENE RMY 29
10/2 66/52/59/+1/T/252/36 21 ENE VEC1 20 ENE RMY 20
10/3 72/52/62/+5/0.00/…/.. 23 S VEC1 23 S RMY 23
10/4 74/54/64/+7/0.00/…/.. 23 SW VEC1 22 SW RMY 22
10/5 72/52/62/+5/0.00/…/.. 29 NNW VEC1 23 NNW RMY 24
10/6 The low since midnight is 47F, the daily normal low is 48F.
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OCTOBER 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 OCTOBER 6
HIGH 83F IN 1990, 2007
LOW 26F IN 1965
PRECIP 3.78 INCHES IN 1962
PEAK GUST 60e MPH S IN 1942
RECORDS FOR OCTOBER 7
HIGH 88F IN 1963 (RECORD FOR MONTH)
LOW 30F IN 1904,1986
PRECIP 1.75 INCHES IN 1972
PEAK GUST 76 W IN 2020
TODAY’S REPORT PREPARED BY: Benjamin Turner
