Sunday, November 26, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, NOVEMBER 26, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0648E
SUNSET: 1615E
ANOTHER DAY WITH BELOW NORMAL TEMPERATURES AND MILD WIND…
Yesterday was a cooler day with below normal temperatures.
The high for the day was 35F and the low was 20F. Today
temperatures continue to be below normal with an overnight
low of 27F. This is 4 degrees below the daily normal of 32F.
So far we have a high of 43F which is 3 degrees below the
daily normal of 46F.
Yesterday evening the wind direction shifted from the NW to
the SW, bringing slightly warmer temperatures to the hill today.
Wind speed continues to be mild today with a peak gust of
20 MPH so far.
As pressure began to rapidly drop the cloud cover increased and
we had overcast skies by the 1:00 P.M. observation. As cloud
cover increased visibility also increased from 30 miles to
70 miles at 1:00 P.M.
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Today’s Observations:
7 A.M.
Weather: Scattered altocumulus, scattered cirrostratus
Temperature: 31F; Dew Point: 21F; Relative Humidity: 66%
Wind: WSW @ 10G15 kts
Sea-level pressure: 1026.9 mb; 30.32 in. Hg: falling then rising
Visibility: 30 miles, in fog in all quadrants
6-hr Max temp: 31F
6-hr Min temp: 27F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 120 SCT 250 SCT 30 269/31/21/2410G15/032/
THN FG ALQDS/ 8/055 55005 10031 20027
10 A.M.
Weather: Scattered altocumulus, broken cirrostratus,
few stratocumulus NE-S
Temperature: 39F; Dew Point: 25F; Relative Humidity: 57%
Wind: S @ 5 kts, wind light
Sea-level pressure: 1026.6 mb; 30.32 in. Hg: rising then falling
Visibility: 60 miles, Hazy
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 110 SCT 250 BKN 60 266/39/25/1905/032/ FEW SC DSNT
NE-S HAZY WND LGT/ 8/555 58003
1 P.M.
Weather: Scattered stratocumulus, broken altocumulus, broken
cirrostratus, few breaks in overcast NW-NE and SE, sun dimly
visible
Temperature: 42F; Dew Point: 28F; Relative Humidity: 57%
Wind: SSW @ 10G13 kts
Sea-level pressure: 1023.5 mb; 30.22 in. Hg: falling, then more rapidly
Visibility: 70 miles
6-hr Max temp: 42F
6-hr Min temp: 31F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 40 SCT 110 BKN 250 OVC 70 235/42/28/2010G13/022/ FEW BINOVC
NW-NE AND SE SUN DMLY VSBL PRESFR/ 8/555 58031 10043 20031
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SUMMARY FOR SATURDAY, NOVEMBER 25, 2023
TEMPERATURE (DEGREES F)
MAX…….35 NORMAL…..47
MIN…….20 NORMAL…..31
MEAN……28 NORMAL…..39
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………-11
TOTAL DEPARTURE FOR THE MONTH…………………-34 [-1.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………37 DEPARTURE…….+11
TOTAL HEATING UNITS FOR THE MONTH…………..589 DEPARTURE…….+33
TOTAL HEATING UNITS FOR THE SEASON………….939 DEPARTURE……-129
TOTAL HEATING UNITS LAST SEASON TO DATE……..861 DEPARTURE…….+78
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)……….E26 NW @ 1:39 A.M.
VECTOR #1 (1-Sec)……….25 NW @ 2:46 A.M.
VECTOR #2 (1-Sec)……….26 NW @ 1:40 A.M.
DAVIS #1……………….24 NW @ 2:46 A.M.
DAVIS #2 ………………23 NNW @ 1:39 A.M.
RMY #1 (Instantaneous)…..26 NW @ 2:46 A.M.
RMY #2 (Instantaneous)…..26 NW @ 2:46 A.M.
MERLIN…………………M M
RICHARDS (C5C) (Inst)……25 @ 1:39 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………17 NW @ 1:43 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..17 @ 1:40 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18 @ 1:44 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………18 NW @ 1:40 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………18 NNW @ 1:43 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..17 NW @ 1:40 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..18 W @ 1:43 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………18 @ 1:40 A.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….7.8 NW [188 total miles]
VECTOR #1……………..8.1
VECTOR #2……………..8.5
DAVIS #1………………7.9 WNW
DAVIS #2………………8.1 NW
RMY #1………………..7.9 WNW
RMY #2………………..8.3 WNW
RICHARDS (C5C)…………8.4
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH…………..1.62 DEPARTURE…..-1.92
TOTAL PRECIPITATION FOR THE YEAR…………..50.81 DEPARTURE…..+3.11
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-1.2
TOTAL SNOWFALL FOR THE SEASON (2023-2024)…..TRACE DEPARTURE……-1.9
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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 49/38/44/0/0.00/0.0/024/04 23 W VEC1 23 W RMY 22
11/11 49/30/40/-3/0.00/0.0/590/99 29 NW VEC1 26 NW RMY 30
11/12 41/27/34/-9/0.00/0.0/475/80 20 N VEC1 19 N RMY 19
11/13 44/24/34/-9/T/T/456/77 20 NNW VEC1 20 N RMY 19
11/14 47/31/39/-3/0.00/0.0/342/58 29 NW VEC1 29 NW RMY 29
11/15 50/30/40/-2/0.00/0.0/475/81 30 SW VEC1 30 SW RMY 31
11/16 62/40/51/+9/0.00/0.0/574/98 30 WSW VEC1 31 WSW RMY 31
11/17 64/43/54/+13/0.00/0.0/280/48 35 SSW VEC1 36 SSW RMY 37
11/18 56/30/43/+2/0.20/0.0/157/27 35 NW VEC1 35 NW RMY 37
11/19 50/29/40/-1/0.00/0.0/475/82 38 WNW VEC1 38 WNW RMY 39
11/20 38/25/32/-8/0.00/0.0/577/100 29 NNW VEC1 32 NNW RMY 33
11/21 39/22/31/-9/0.05/T/363/63 29 SE VEC1 29 SE RMY 28
11/22 53/33/43/+3/1.20/T/000/00 38 SE VEC1 40 SE RMY 37
11/23 50/36/43/+4/0.00/0.0/…/.. 33 NW VEC1 32 NW RMY 33
11/24 47/26/37/-2/0.00/0.0/…/.. 35 WNW VEC1 33 WNW RMY 33
11/25 35/20/28/-11/0.00/0.0/…/.. 26 NW VEC1 25 NW RMY 26
11/26 The low since midnight is 27F, the daily normal low is 31F
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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 26
HIGH 66 IN 1979
LOW 6 IN 1938
PRECIP 2.39 INS IN 1950
SNOWFALL 3.0 INS IN 1974
PEAK GUST 78 SSE IN 1964
RECORDS FOR NOVEMBER 27
HIGH 68 IN 1896
LOW 5 IN 1932
PRECIP 2.23 INS IN 2013
SNOWFALL 16.0 INS IN 1898
PEAK GUST 68 NW IN 1997
TODAY’S REPORT PREPARED BY: Kaitlin Geagan
