Saturday, November 11, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SATURDAY, NOVEMBER 11, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0630E
SUNSET: 1626E
SUNNY AND COOL WITH GREAT VISIBILITY….
Today we observed an average visibility of 80 miles with partly
cloudy skies. Wind has picked up since this morning, reaching
a max of 26 mph so far today. The wind direction has been
northwesterly for the most part.
The dew points have hovered in the low 30’s which is a refreshing
accompaniment to the breeze (12 mph on average). It’s a perfect day
for a hike!
The maximum temperature so far today is 49F, which is 3 degrees
below the normal high of 52F. The minimum temperature since
midnight is 38F, which is 3 degrees above the normal low of 35F.
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Today’s Observations:
7 A.M.
Weather: Clear with a few stratocumulus NW-N-NE and a few distant
cirrostratus
Temperature: 38F; Dew Point: 31F; Relative Humidity: 75%
Wind: WNW @ 10G15 kts
Sea-level pressure: 1023.1 mb; 30.21 in. Hg: rising, then more rapidly
rapidly
Visibility: 70 miles
6-hr Max temp: 40F
6-hr Min temp: 36F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.00 inches
BHO SA 1155 CLR 70 231/38/31/3010G15/021/ FEW SC NW-N-NE FEW CS DSNT ALQDS/
8/508 53022 10040 20036
10 A.M.
Weather: Scattered stratocumulus
Temperature: 46F; Dew Point: 31F; Relative Humidity: 54%
Wind: NW @ 10G16 kts
Sea-level pressure: 1025.0 mb; 30.27 in. Hg: rising, then more slowly
Visibility: 80 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.00 inches
BHO SA 1455 30 SCT 80 250/46/31/3210G16/027/ 8/500 51019
1 P.M.
Weather: Scattered stratocumulus
Temperature: 47F; Dew Point: 29F; Relative Humidity: 48%
Wind: WNW @ 10G16 kts
Sea-level pressure: 1025.6 mb; 30.29 in. Hg: falling then rising
Visibility: 85 miles
6-hr Max temp: 49F
6-hr Min temp: 38F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.00 inches
BHO SA 1755 30 SCT 85 256/47/29/3010G16/029/ 8/500 50006 10049 20038
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SUMMARY FOR FRIDAY, NOVEMBER 10, 2023
TEMPERATURE (DEGREES F)
MAX…….49 NORMAL…..52
MIN…….38 NORMAL…..36
MEAN……44 NORMAL…..44
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………..0
TOTAL DEPARTURE FOR THE MONTH………………….-8 [-1.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………21 DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH…………..203 DEPARTURE……..+6
TOTAL HEATING UNITS FOR THE SEASON………….553 DEPARTURE……-156
TOTAL HEATING UNITS LAST SEASON TO DATE……..498 DEPARTURE…….+55
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)……….E23 W @ 10:06 P.M.
VECTOR #1 (1-Sec)……….24 W @ 12:48 A.M.
VECTOR #2 (1-Sec)……….24 W @ 9:18 A.M.
DAVIS #1……………….24 W @ 12:48 A.M.
DAVIS #2 ………………18 WNW @ 11:45 P.M.
RMY #1 (Instantaneous)…..22 W @ 12:48 A.M.
RMY #2 (Instantaneous)…..24 WNW @ 8:53 P.M.
MERLIN…………………24 W
RICHARDS (C5C) (Inst)……23 @ 12:48 A.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………17 W @ 10:06 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..17 WNW @ 12:06 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 WNW @ 12:16 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 W @ 12:06 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………14 WNW @ 11:50 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..15 WNW @ 12:16 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 WNW @ 12:16 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16 WNW @ 12:06 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………11.3 W [270 total miles]
VECTOR #1……………….11.5
VECTOR #2……………….12.1
DAVIS #1………………..12.0 SW
DAVIS #2………………..7.7 NNE
RMY #1………………….11.2 WSW
RMY #2………………….11.9 W
RICHARDS (C5C)…………..11.6 W
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…..-1.29
TOTAL PRECIPITATION FOR THE YEAR…………..49.36 DEPARTURE…..+3.74
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.00 DEPARTURE…….0.0
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-0.3
TOTAL SNOWFALL FOR THE SEASON (2023-2024)…..TRACE DEPARTURE……-1.0
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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 The low since midnight is 36F, 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 11
HIGH 73 IN 2020
LOW 17 IN 1956
PRECIP 1.14 INCHES IN 1991
SNOWFALL 2.5 IN 1986
PEAK GUST 64 NW IN 1962
RECORDS FOR NOVEMBER 12
HIGH 74 IN 1909
LOW 18 IN 1926
PRECIP 3.39 INCHES IN 1947
SNOWFALL 8.1 INCHES IN 1987
PEAK GUST 79e MPH NW IN 1947
TODAY’S REPORT PREPARED BY: Benjamin Turner
