Sunday, November 8, 2020

| November 9, 2020 | Reply

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

SUNDAY, NOVEMBER 8, 2020
ALL TIMES ARE IN EASTERN STANDARD TIME

WARM, AND ANOTHER RECORD-SETTING DAY
ATOP GREAT BLUE HILL….

Today we observed partly cloudy conditions with
thin, upper-level clouds and an okay visibility of 50
miles at the 1 P.M. observation. Haze was the main
limiter of visibility, and a thin smoke layer was
seen at the 1 P.M. observation. Wind shifted from west
to northwest this morning, becoming light and
variable around noon.

With only one notable precipitation event this month,
we are currently running at a monthly deficit of a
half inch, and a yearly deficit of 3 inches.

The biggest feature was temperature for today and
yesterday, with a high of 75F yesterday and a high
of 73F so far today. This breaks two temperature
maximum records:

Yesterday: 75F replacing 72F set in 1938

Today: 72F set in 1975, record already broken
by a high of 73F read at the 1 P.M. observation.

Temperatures like these are seen in late August
and early September!!!!!!

We did set a temperature record for the day before
yesterday, it being a daily max of 72F. This replaces
the old record of 71F, set in 1959.

Summer definitely got a second wind this year!

Today’s Observations:

7 A.M.
Weather: Scattered cirrostratus
Temperature: 56F; Dew Point: 45F; Relative Humidity: 66%
Wind: WNW at 10 kts
Sea-level pressure: 30.33 ins. Hg: rising steadily
Visibility: 30 miles, hazy
6-hr Max temp: 58F
6-hr Min temp: 54F
24-hr Precip: 0.0 ins.
24-hr Snow: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 250 SCT 30 270/56/45/3310/033/ HAZY/ 8/006
53018 10058 20054

10 A.M.
Weather: Scattered cirrostratus
Temperature: 58F; Dew Point: 45F; Relative Humidity: 49%
Wind: N at 7 kts
Sea-level pressure: 30.38 ins. Hg: steady, then rising
Visibility: 50 miles, hazy
3-hr Precip: 0.00 ins.
3-hr Snow: 0.0 ins.
BHO SA 1455 250 SCT 50 287/58/45/0107/038/ HAZY/ 8/006 51017

1 P.M.
Weather: Broken cirrostratus
Temperature: 72F; Dew Point: 46F; Relative Humidity: 39%
Wind: N at 3 kts, wind light and variable
Sea-level pressure: 30.35 ins. Hg: falling, then falling more rapidly
Visibility: 50 miles
6-hr Max temp: 73F
6-hr Min temp: 56F
6-hr Precip: 0.00 ins.
6-hr Snow: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 250 BKN 50 276/72/46/0103/035/ THN K LYR ALQDS WND L/V/
8/006 58011 10073 20056

SUMMARY FOR SATURDAY, NOVEMBER 7, 2020

TEMPERATURE (DEGREES F)
MAX…….75   NORMAL…..53
MIN…….54   NORMAL…..36
MEAN……65   NORMAL…..45

DEPARTURE FROM 30-YEAR NORMAL……………….+20
TOTAL DEPARTURE FOR THE MONTH……………….+27 [+3.7 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………….0  DEPARTURE……-20
TOTAL HEATING UNITS FOR THE MONTH…………..110  DEPARTURE……-27
TOTAL HEATING UNITS FOR THE SEASON………….562  DEPARTURE…..-138
TOTAL HEATING UNITS LAST SEASON TO DATE……..576  DEPARTURE……-14

PEAK WIND GUST FOR YESTERDAY (MPH):
420C/Official…………..21 WSW  AT  1:25 P.M.
AEROVANE (south tower)…..21 WSW  AT  1:23 A.M.
ASOS…………………..22 W    AT  8:28 P.M.
DAVIS #1……………….22 W    AT  8:34 P.M.
DAVIS #2 (south tower)…..22 W    AT  8:34 P.M.
MERLIN…………………22
RMY……………………21
VECTOR…………………25

FASTEST MILE FOR YESTERDAY:
CONTACTING/OFFICIAL………………………..18 WSW  AT  1:25 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….17 WSW  AT  9:06 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 WSW  AT  1:33 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 WSW  AT  1:33 A.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL… …11.0 WSW [264 total miles]
DAVIS #1………………11.4 WSW [274 total miles]
DAVIS #2 (south tower)….11.4 WSW [274 total miles]
ASOS………………….10.9     [261 total miles]
VECTOR………………..11.0     [264 total miles]
MERLIN…………………9.1     [218 total miles]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….0.00  DEPARTURE….-0.16
ASOS………….0.00
TOTAL PRECIPITATION FOR THE MONTH………….0.69  DEPARTURE….-0.40
ASOS………….0.71
TOTAL PRECIPITATION FOR THE YEAR………….41.86  DEPARTURE….-3.00
ASOS………..42.66

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HOURS ENDING 7 A.M………..0.0  DEPARTURE….. 0.0
TOTAL SNOWFALL FOR THE MONTH……………..Trace  DEPARTURE…..-0.2
TOTAL SNOWFALL FOR THE SEASON………………6.5  DEPARTURE…..+6.0

PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/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

10/01  75/56/66/+9/0.00/591/84           28 SW    AERO 28 SW   RMY N/A
10/02  63/49/56/-1/0.02/203/29           20 NW    AERO 21 NW   RMY 20
10/03  65/45/55/-1/0.00/676/97           19 WNW   AERO 19 WNW  RMY 19
10/04  65/45/55/-1/0.00/659/95           17 ESE   AERO 18 ESE  RMY 18
10/05  62/52/57/+1/0.00/277/40           17 ENE   AERO 17 ENE  RMY N/A
10/06  69/51/60/+5/0.00/503/73           28 S     AERO 28 S    RMY 29
10/07  73/50/62/+7/0.14/316/46           76 W     AERO 74 W    RMY 70  TSTM
10/08  61/42/52/-2/0.00/676/99           41 W     AERO 41 W    RMY N/A
10/09  60/37/49/-5/0.00/646/95           25 SSW   AERO 28 SSW  RMY N/A
10/10  75/52/64/+10/0.00/549/81          40 SSW   AERO 40 SSW  RMY 38
10/11  64/47/56/+3/0.00/574/85           32 NNW   AERO 35 NNW  RMY N/A
10/12  52/48/50/-3/T/000/00              28 E     AERO 27 E    RMY N/A
10/13  57/49/53/0/1.74/000/00            32 E     AERO 33 E    RMY N/A
10/14  67/47/57/+5/0.00/606/91           23 WNW   AERO 25 WNW  RMY N/A
10/15  71/50/61/+9/0.00/511/77           43 S     AERO 46 S    RMY 42
10/16  68/48/58/+7/1.00/020/03           28 S     AERO 30 S    RMY N/A
10/17  56/39/48/-3/1.24/480/73           35 WNW   AERO 40 WNW  RMY 37
10/18  60/46/53/+2/0.00/622/95           20 ESE   AERO 21 ESE  RMY 20
10/19  61/46/54/+4/0.00/575/88           16 ESE   AERO 16 SSE  RMY N/A
10/20  66/49/58/+8/0.00/065/10           22 S     AERO 22 S    RMY 22
10/21  71/56/64/+14/0.06/000/00          26 SSW   AERO 26 SSW  RMY 26
10/22  70/54/62/+13/0.00/471/73          18 SSW   AERO 17 SSW  RMY N/A
10/23  68/52/60/+11/0.00/340/53          18 ESE   AERO 18 ESE  RMY 18
10/24  68/42/55/+6/0.00/217/34           32 NNW   AERO 32 NNW  RMY 32
10/25  50/40/45/-4/0.00/134/21           19 NNW   AERO 19 NNW  RMY N/A
10/26  52/43/48/0/0.02/000/00            20 E     AERO 18 ESE  RMY 20
10/27  52/43/48/0/T/…/..               22 NNW   AERO 22 NNW  RMY N/A
10/28  49/42/46/-2/0.33/…/..           18 W     AERO 18 W    RMY 18
10/29  46/41/44/-3/1.26/…/..           39 NE    AERO 38 NE   RMY 38
10/30  41/26/34/-13/0.94/…/..          37 NNE   AERO 44 NNE  RMY N/A
10/31  39/24/32/-15/0.00/…/..          18 SSE   AERO 20 SSE  RMY 17

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/…/..      38 W     AERO 40 W    RMY 39
11/02   40/31/36/-10/T/T/…/..          61 WNW   AERO 62 WNW  RMY 62
11/03   43/29/36/-10/0.00/0.0/…/..     48 WNW   AERO 53 WNW  RMY 48
11/04   54/30/42/-3/0.00/0.0/…/..      30 SSW   AERO 30 SSW  RMY 30
11/05   69/49/59/+14/0.00/0.0/…/..     37 SSW   AERO 40 SSW  RMY 38
11/06   72/55/64/+19/0.00/0.0/…/..     28 SW    AERO 28 SW   RMY M
11/07   75/54/65/+20/0.00/0.0/…/..     21 WSW   AERO 21 WSW  RMY 21

11/08 The low since midnight is 54F, the daily normal low is 36F

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

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

RECORDS FOR NOVEMBER 8
HIGH 72 IN 1938
LOW 20 IN 1921
PRECIP 2.24 INCHES IN 1972
SNOWFALL 4.0 IN 1894
PEAK GUST 72e SE IN 1947

RECORDS FOR NOVEMBER 9
HIGH 72 IN 1975
LOW 17 IN 1971
PRECIP 1.37 INCHES IN 1969
SNOWFALL 0.2 IN 1921,1923
PEAK GUST 73e S IN 1943

TODAY’S REPORT PREPARED BY: Benjamin Turner

Category: Daily Discussions

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