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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, NOVEMBER 13, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0632E
SUNSET: 1624E
CONTINUED UNSEASONABLY CHILLY DESPITE ABUNDANT SUNSHINE….
This morning was the coldest morning of the season so far with
the low dropping to 24F (23.5F). While this wasn’t close to record
territory, it was still a solid 11 degrees below the expected low
for today’s date!
Sunshine has been the theme today, however high clouds are starting
to fill-in across the southwestern through northwestern horizon as
our next system approaches the area. While on the chilly side, it
has still been a rather nice day as the wind has not been much of
a factor.
Temperatures have rebounded into the low to mid 40s early this
afternoon, again, below normal levels, but all in all not bad at
all. The dew point has been fairly consistent in the low to mid
20s the last couple of days.
As mentioned, the wind has been on the light side, and has become
rather variable in direction early this afternoon. The average
speed for the day is around 8mph, but the trend has been for
decreasing speeds over the past 2-3 hours. If this sounds like a
broken record, it’s because the exact same thing happened yesterday
as well. The highest gust for the day occurred back just before
5am this morning at around 20mph.
The visibility has been decent today, holding between 50-60 miles
all day.
The maximum temperature so far today is 44F, which is 7 degrees
below the normal high of 51F. The minimum temperature since
midnight is 24F, which is 11 degrees below the normal low of 35F.
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Today’s Observations:
7 A.M.
Weather: Clear, few stratocumulus offshore distant NNE-SE
Temperature: 24F; Dew Point: 21F; Relative Humidity: 88%
Wind: NNW @ 9 kts
Sea-level pressure: 1029.1 mb; 30.39 in. Hg: falling, then steady
Visibility: 50 miles
6-hr Max temp: 27F
6-hr Min temp: 24F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
BHO SA 1155 CLR 50 291/24/21/3409/039/ FEW SC OFFSHR DSNT NNE-SE
THN K LYR ALNG HZN ALQDS/ 8/500 56006 10027 20024
10 A.M.
Weather: Clear, few stratocumulus distant N-E-SSE
Temperature: 34F; Dew Point: 22F; Relative Humidity: 62%
Wind: WNW @ 4 kts, wind light
Sea-level pressure: 1028.4 mb; 30.37 in. Hg: falling, then more slowly
Visibility: 60 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 60 284/34/22/3004/037/ FEW SC DSNT N-E-SSE WND LGT/
8/500 56007
1 P.M.
Weather: Thin scattered cirrus, few stratocumulus NNE-E-SSW,
few cirrostratus distant SW-N
Temperature: 42F; Dew Point: 25F; Relative Humidity: 50%
Wind: SW @ 6 kts, wind light
Sea-level pressure: 1025.0 mb; 30.27 in. Hg: falling, then more rapidly
Visibility: 60 miles
6-hr Max temp: 44F
6-hr Min temp: 24F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
BHO SA 1755 250 -SCT 60 250/42/25/2206/027/ FEW SC NNE-E-SSW
FEW CS DSNT SW-N WND LGT/ 8/505 58034 10044 20024
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SUMMARY FOR SUNDAY, NOVEMBER 12, 2023
TEMPERATURE (DEGREES F)
MAX…….41 NORMAL…..51
MIN…….27 NORMAL…..35
MEAN……34 NORMAL…..43
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….-9
TOTAL DEPARTURE FOR THE MONTH…………………-20 [-1.9 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………31 DEPARTURE……..+9
TOTAL HEATING UNITS FOR THE MONTH…………..259 DEPARTURE…….+18
TOTAL HEATING UNITS FOR THE SEASON………….609 DEPARTURE……-143
TOTAL HEATING UNITS LAST SEASON TO DATE……..505 DEPARTURE……+104
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)……….E20 N @ 12:17 A.M.
VECTOR #1 (1-Sec)……….19 N @ 12:15 A.M.
VECTOR #2 (1-Sec)……….20 N @ 12:23 A.M.
DAVIS #1……………….18 NNW @ 12:14 A.M.
DAVIS #2 ………………18 N @ 12:13 A.M.
RMY #1 (Instantaneous)…..19 N @ 12:18 A.M.
RMY #2 (Instantaneous)…..20 N @ 02:18 A.M.
MERLIN…………………M
RICHARDS (C5C) (Inst)……18 @ 12:18 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………12 N @ 12:30 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..13 @ 01:25 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..13 @ 04:56 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………13 N @ 12:16 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………13 N @ 04:55 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..13 N @ 01:11 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 NNW @ 04:56 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………13 @ 01:11 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….7.0 NNW [168 total miles]
VECTOR #1……………..8.2
VECTOR #2……………..8.5
DAVIS #1………………8.0 NNW
DAVIS #2………………8.2 N
RMY #1………………..8.1 NNW
RMY #2………………..8.5 NNW
RICHARDS (C5C)…………8.6
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH…………..0.17 DEPARTURE…..-1.58
TOTAL PRECIPITATION FOR THE YEAR…………..49.36 DEPARTURE…..+3.45
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE…….0.0
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-0.4
TOTAL SNOWFALL FOR THE SEASON (2023-2024)…..TRACE DEPARTURE……-1.1
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PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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
11/1 42/31/37/-10/0.01/T/056/09 23 ENE VEC1 21 ENE RMY 23
11/2 45/28/37/-10/0.00/0.0/618/100 23 NNW VEC1 23 NNW RMY 22
11/3 55/36/46/0/0.00/0.0/541/88 32 SW VEC1 33 SSW RMY 33
11/4 59/44/52/+6/0.00/0.0/049/08 32 SW VEC1 31 SW RMY 32
11/5 61/42/52/+6/0.00/0.0/360/59 24 NNW VEC1 27 NNW RMY 27
11/6 50/40/45/+/0.00/0.0/067/11 28 S VEC1 27 S RMY 25
11/7 65/46/56/+11/0.05/0.0/272/45 38 WNW VEC1 37 WNW RMY 37
11/8 48/33/41/-4/0.00/0.0/440/73 36 NNW VEC1 38 NNW RMY 39
11/9 42/32/37/+7/0.11/T/000/00 20 WNW VEC1 20 WNW RMY 20
11/10 49/38/44/0/0.00/0.0/…/.. 23 W VEC1 23 W RMY 22
11/11 49/30/40/-3/0.00/0.0/…/.. 29 NW VEC1 26 NW RMY 30
11/12 41/27/34/-9/0.00/0.0/…/.. 20 N VEC1 19 N RMY 19
11/13 The low since midnight is 24F, the daily normal low is 35F
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NOVEMBER DAILY RECORDS TO DATE
11/1 TIED RECORD FOR SNOWFALL WITH A TRACE, TIED WITH 1906, 1951
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR NOVEMBER 13
HIGH 66 IN 1931, 1964
LOW 14 IN 1920
PRECIP 1.96 INCHES IN 1982
SNOWFALL 4.6 IN 2004
PEAK GUST 77 S IN 1982
RECORDS FOR NOVEMBER 14
HIGH 70 IN 1993
LOW 11 IN 1905
PRECIP 2.08 INCHES IN 2009
SNOWFALL 3.5 IN 1997, 2014
PEAK GUST 63 W IN 2003
TODAY’S REPORT PREPARED BY: Matt Douglas
