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Thursday, November 23, 2023

November 23, 2023

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA THURSDAY, NOVEMBER 23, 2023 ALL TIMES ARE…

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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

THURSDAY, NOVEMBER 23, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0643E
SUNSET:  1617E

MAINLY SUNNY, BRISK, AND SEASONABLY COOL ON THIS THANKSGIVING…

Happy Thanksgiving to everyone from all of us at BHO!

After all the rainfall yesterday, which totalled 1.25″ for the
event, today is featuring much better weather with plenty of
sunshine, a brisk northwest wind, and seasonable temperatures.
Only a few stratocumulus and high thin cirrus clouds have floated
by at times, but they have not impacted the abundance of sunshine.

The temperature started the day in the mid to upper 30s, and has
warmed into the upper 40s by early this afternoon. This is about
what we’d expect for day time highs at this time of year. The
dew point has been holding pretty steady in the mid 30s all day.

Winds are busy today out of the northwest with frequent gusts of
20-30mph being observed. The average speed for the day to this
point is around 14mph. The peak gust so far is 35mph just after
11:15 this morning.

Visibility has been excellent all day holding between 70-80 miles!

The maximum temperature so far today is 49F, which is 2 degrees
above the normal high of 47F. The minimum temperature since
midnight is 36F, which is 4 degree above the normal low of 32F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few stratocumulus distant all quadrants, few cirrus
distant SW and distant W-NNW
Temperature: 37F; Dew Point: 37F; Relative Humidity: 98%
Wind: NW @ 11 kts
Sea-level pressure: 1005.6 mb; 29.70 in. Hg: rising, then more rapidly
Visibility: 70 miles
6-hr Max temp: 37F
6-hr Min temp: 36F
24-hr Precip:  0.81 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 CLR 70 056/37/37/3211/970/ FEW SC DSNT ALQDS FEW CI DSNT SW
AND DSNT W-NNW/ 8/501 53024 70081 10037 20036

10 A.M.
Weather: Clear, few stratocumulus all quadrants, few cirrus SW-N
Temperature: 44F; Dew Point: 37F; Relative Humidity: 77%
Wind: NW @ 16G25 kts
Sea-level pressure: 1007.1 mb; 29.74 in. Hg: rising, then more slowly
Visibility: 70 miles
3-hr Precip:  0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 70 071/44/37/3216GG25/974/ FEW SC ALQDS FEW CI SW-N/
8/501 51015

1 P.M.
Weather: Clear, few stratocumulus distant WSW-N, few cirrus distant WSW-N
Temperature: 48F; Dew Point: 36F; Relative Humidity: 62%
Wind: NW @ 16G26 kts, peak wind 31mph at 12:43 P.M.
Sea-level pressure: 1007.4 mb; 29.75 in. Hg: falling, then rising
Visibility: 80 miles
6-hr Max temp: 49F
6-hr Min temp: 37F
6-hr Precip:  0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 CLR 80 074/48/36/3116G26/975/ FEW SC DSNT WSW-N FEW CI DSNT
WSW-N PK WND 3127/43/ 8/501 53003 10049 20037

————————————————————–

SUMMARY FOR WEDNESDAY, NOVEMBER 22, 2023

TEMPERATURE (DEGREES F)
MAX…….53   NORMAL…..48
MIN…….33   NORMAL…..32
MEAN……43   NORMAL…..40

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….+3
TOTAL DEPARTURE FOR THE MONTH…………………-25 [-1.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………22  DEPARTURE……..-3
TOTAL HEATING UNITS FOR THE MONTH…………..502  DEPARTURE…….+24
TOTAL HEATING UNITS FOR THE SEASON………….852  DEPARTURE……-138
TOTAL HEATING UNITS LAST SEASON TO DATE……..789  DEPARTURE…….+63

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)……….E38 SE   @  05:31 A.M.
VECTOR #1 (1-Sec)……….40 SE   @  05:52 A.M.
VECTOR #2 (1-Sec)……….42 SE   @  05:31 A.M.
DAVIS #1……………….35 E    @  05:31 A.M.
DAVIS #2 ………………41 SE   @  05:31 A.M.
RMY #1 (Instantaneous)…..37 SE   @  05:33 A.M.
RMY #2 (Instantaneous)…..43 SE   @  05:31 A.M.
MERLIN…………………35 SSE
RICHARDS (C5C) (Inst)……38      @  05:31 A.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………26 SE   @  05:33 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..24      @  05:34 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..28      @  05:34 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………25 ESE  @  05:33 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………27 SE   @  05:34 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..23 SE   @  05:33 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..27 SE   @  05:34 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………25      @  05:33 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……13.2 SE [316 total miles] VECTOR #1…………….12.7
VECTOR #2…………….13.8
DAVIS #1……………..13.0 E
DAVIS #2……………..13.3 E
RMY #1……………….12.5 ENE
RMY #2……………….13.6 ENE
RICHARDS (C5C)………..13.3

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.81 DEPARTURE…..+0.67
TOTAL PRECIPITATION FOR THE MONTH…………..1.62 DEPARTURE…..-1.49
TOTAL PRECIPITATION FOR THE YEAR…………..50.81 DEPARTURE…..+3.54

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……-0.9
TOTAL SNOWFALL FOR THE SEASON (2023-2024)…..TRACE DEPARTURE……-1.6

————————————————————–

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 The low since midnight is 36F, the daily normal low is 32F

————————————————————–

NOVEMBER DAILY RECORDS TO DATE

11/1 TIED RECORD FOR SNOWFALL WITH A TRACE, TIED WITH 1906, 1951

————————————————————–

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)

RECORDS FOR NOVEMBER 23
HIGH 73 IN 1931
LOW 9 IN 1888, 2018
PRECIP 2.33 INS IN 2006
SNOWFALL 5.5 INS IN 1989
PEAK GUST 64e S IN 1953

RECORDS FOR NOVEMBER 24
HIGH 69 IN 1931
LOW 7 IN 1897
PRECIP 1.76 INCHES IN 1901
SNOWFALL 4.5 INS IN 1936
PEAK GUST 69 SSW IN 1959

TODAY’S REPORT PREPARED BY: Matt Douglas

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Blue Hill Observatory & Science Center · Legal

Data Use & Privacy Policy

Please read the full Policy before accessing Observatory data · Effective January 1, 2025

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Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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