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Tuesday, November 24, 2020

November 24, 2020

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA TUESDAY, NOVEMBER 24, 2020 ALL TIMES ARE…

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

TUESDAY, NOVEMBER 24, 2020
ALL TIMES ARE IN EASTERN STANDARD TIME

A CHILLY, LATE FALL DAY ATOP GREAT BLUE HILL….

We observed a fair weather day with very few clouds
in the sky. This included a nice 80 miles of visibility
and dry conditions. A wind shift from south to west
was seen between 8 and 10 A.M., and a max gust of 29 mph
was observed around noontime.

The high so far today is 41F, 6 degrees below the daily
normal high of 47F. The low since midnight is 30F,
a degree below the normal low of 31F.

Today’s Observations:

7 A.M.
Weather: Few cumulus
Temperature: 30F; Dew Point: 24F; Relative Humidity: 78%
Wind: S at 19G22 kts
Sea-level pressure: 30.19 ins. Hg, rising rapidly
Visibility: 30 miles, haze
6-hr Max temp: 32F
6-hr Min temp: 30F
24-hr Precip: 1.37 ins.
24-hr Snow: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 CLR 30 222/30/24/1912G22/019/ FEW CU ALQDS
HAZY/ 8/100 53032 10032 20030

10 A.M.
Weather: Scattered cumulus
Temperature: 38F; Dew Point: 25F; Relative Humidity: 59%
Wind: W at 12G18 kts
Sea-level pressure: 30.28 ins. Hg: rising steadily
Visibility: 80 miles
3-hr Precip: 0.00 ins.
3-hr Snow: 0.0 ins.
BHO SA 1455 50 SCT 80 251/38/25/2812G18/028/ 8/100 51029

1 P.M.
Weather: Few cumulus
Temperature: 41F; Dew Point: 19F; Relative Humidity: 41%
Wind: WNW at 14G22 kts
Sea-level pressure: 30.27 ins. Hg: steady, then falling
Visibility: 80 miles, thin fog
6-hr Max temp: 41F
6-hr Min temp: 30F
6-hr Precip: 0.00 ins.
6-hr Snow: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 CLR 80 250/41/19/3014G22/027/ FEW CU ALQDS 8/100
58001 10041 20030

SUMMARY FOR MONDAY, NOVEMBER 23, 2020

TEMPERATURE (DEGREES F)
MAX…….58   NORMAL…..47
MIN…….32   NORMAL…..31
MEAN……45   NORMAL…..39

DEPARTURE FROM 30-YEAR NORMAL……………….+6
TOTAL DEPARTURE FOR THE MONTH……………….+132 [+5.5 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………20  DEPARTURE……-6
TOTAL HEATING UNITS FOR THE MONTH…………..379  DEPARTURE…..-129
TOTAL HEATING UNITS FOR THE SEASON………….831  DEPARTURE…..-240
TOTAL HEATING UNITS LAST SEASON TO DATE…….1060  DEPARTURE…..-229

PEAK WIND GUST FOR YESTERDAY (MPH):
420C/Official…………..42 WNW  AT   3:08 P.M.
AEROVANE (south tower)…..48 WNW  AT   3:08 P.M.
ASOS…………………..43 W    AT   3:10 P.M.
DAVIS #1……………….41 W    AT  10:50 A.M.
DAVIS #2 (south tower)…..43 NW   AT   3:07 P.M.
RMY……………………46
VECTOR…………………48
MERLIN…………………39

FASTEST MILE FOR YESTERDAY:
CONTACTING/OFFICIAL………………………..30 WNW  AT  10:50 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….26 WNW  AT   3:10 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………30 WNW  AT  10:51 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………30 WNW  AT  10:51 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……16.0 WNW [370 total miles] ASOS…………………16.3     [386 total miles] DAVIS #1……………..16.1 W   [376 total miles] DAVIS #2……………..17.0 W   [408 total miles] RMY………………….15.0 W   [348 total miles] VECTOR……………….15.8     [372 total miles]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….1.37  DEPARTURE….+1.21
ASOS………….1.40
TOTAL PRECIPITATION FOR THE MONTH………….3.51  DEPARTURE….-1.33
ASOS………….3.60
TOTAL PRECIPITATION FOR THE YEAR………….44.68  DEPARTURE….-2.72
ASOS………..45.55

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HOURS ENDING 7 A.M………..0.0  DEPARTURE…..-0.1
TOTAL SNOWFALL FOR THE MONTH……………..Trace  DEPARTURE…..-1.2
TOTAL SNOWFALL FOR THE SEASON………………6.5  DEPARTURE…..+5.0

PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system gust
RMY:  R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M:    Missing data

11/01   49/36/43/-3/0.69/0.0/006/01      38 W     AERO 40 W    RMY 39
11/02   40/31/36/-10/T/T/425/69          61 WNW   AERO 62 WNW  RMY 62
11/03   43/29/36/-10/0.00/0.0/473/77     48 WNW   AERO 53 WNW  RMY 48
11/04   54/30/42/-3/0.00/0.0/550/90      30 SSW   AERO 30 SSW  RMY 30
11/05   69/49/59/+14/0.00/0.0/548/90     37 SSW   AERO 40 SSW  RMY 38
11/06   72/55/64/+19/0.00/0.0/394/65     28 SW    AERO 28 SW   RMY M
11/07   75/54/65/+20/0.00/0.0/562/93     21 WSW   AERO 21 WSW  RMY 21
11/08   73/54/64/+20/0.00/0.0/584/97     18 W     AERO 18 W    RMY 19
11/09   74/52/63/+19/0.00/0.0/593/99     20 WSW   AERO 18 WSW  RMY 21
11/10   74/53/64/+20/0.00/0.0/597/100    30 SW    AERO 28 SW   RMY 31
11/11   73/58/66/+23/0.04/0.0/…/..     40 SW    AERO 44 SW   RMY 45
11/12   64/46/55/+12/0.04/0.0/…/..     32 NNW   AERO 31 NNW  RMY 33
11/13   48/38/43/0/0.30/0.0/…/..       22 NW    AERO 21 NW   RMY 25
11/14   49/32/41/-1/0.00/0.0/…/..      26 NW    AERO 28 NW   RMY 29
11/15   58/30/44/+2/0.62/0.0/…/..      60 S     AERO 67 S    RMY 65
11/16   53/39/46/+4/0.00/0.0/…/..      40 WNW   AERO 41 WNW  RMY 43
11/17   47/32/40/-1/0.00/0.0/…/..      28 NW    AERO 28 NW   RMY 30
11/18   32/19/26/-15/0.00/0.0/…/..     40 NW    AERO 46 NW   RMY 43
11/19   44/18/31/-10/0.00/0.0/…/..     37 SW    AERO 39 SW   RMY 43
11/20   63/44/54/+14/0.00/0.0/…/..     33 SSW   AERO 35 SSW  RMY 37
11/21   62/40/51/+11/0.00/0.0/…/..     24 W     AERO 23 W    RMY 27
11/22   45/33/39/-1/T/0.0/…/..         28 SE    AERO 28 SE   RMY 31
11/23   58/32/45/+6/…./…/…/..      42 WNW   AERO 48 WNW  RMY 46

11/24 The low since midnight is 30F, the daily normal low is 31F

DAILY RECORDS FOR NOVEMBER 2020

11/06/20: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 72F,
BREAKS PREVIOUS RECORD OF 71F SET IN 1959 AND 2015

11/07/20: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 75F,
TIES PREVIOUS RECORD OF 75F SET IN 1938

11/08/20: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 73F,
BREAKS PREVIOUS RECORD OF 72F SET IN 1938

11/09/20: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 74F,
BREAKS PREVIOUS RECORD OF 72F SET IN 1975

11/11/20: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 58F,
BREAKS PREVIOUS RECORD OF 56F IN 2002
DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 73F,
BREAKS PREVIOUS RECORD OF 68F IN 1984

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

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

RECORDS FOR NOVEMBER 25
HIGH 71 IN 1979
LOW 13 IN 1938
PRECIP 3.10 INCHES IN 1983
SNOWFALL 8.0 INS IN 1888
PEAK GUST 94e E IN 1950

TODAY’S REPORT PREPARED BY: Benjamin Turner

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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

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
Part I — Data Use Policy
§ 01

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