Sunday, November 17, 2024

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

SUNDAY, NOVEMBER 17, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0638E
SUNSET:  1620E

ALMOST CLEAR SKIES WITH EXCELLENT VISIBILITY….

We observed almost clear skies today with an average visibility of
85 miles! Wind was around 10 mph from the northwest with frequent
gusts around 20 mph.

While our rainless streak ended a couple days ago, we are still at
a rainfall deficit of 2.22 inches for the month and 2.58 inches for
the year.

The maximum temperature for today is 61 degrees, which
is 11 degrees above the normal high of 50F. The minimum temperature
since midnight is 40F degrees, which is 7 degrees above the normal
low of 33F degrees.

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Today’s Observations:

7 A.M.
Weather: Clear
Temperature: 40F; Dew Point: 16F; Relative Humidity: 36%
Wind: NW @ 12G18 kts
Sea-level pressure: 1015.1 mb; 29.98 in. Hg: rising unsteadily
Visibility: 85 miles
6-hr Max temp: 42F
6-hr Min temp: 40F
24-hr Precip:  0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 CLR 85 151/40/16/3112G18/998/ 52014 10042 20040

10 A.M.
Weather: Clear, few cirrus SW-W-NW
Temperature: 53F; Dew Point: 19F; Relative Humidity: 25%
Wind: NW @ 10G16 kts
Sea-level pressure: 1015.6 mb; 29.99 in. Hg: rising unsteadily
Visibility: 85 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 85 156/53/19/3110G16/999/ FEW CI SW-W-NW/ 8/001 52005

1 P.M.
Weather: Clear, few cirrostratus SW-W-NW
Temperature: 61F; Dew Point: 20F; Relative Humidity: 20%
Wind: NW @ 10G17 kts
Sea-level pressure: 1013.2 mb; 29.90 in. Hg: falling, then more
rapidly
Visibility: 85 miles
6-hr Max temp: 61F
6-hr Min temp: 40F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 CLR 85 132/61/20/3110G17/990/ FEW CS SW-W-NW/ 8/005
58024 10061 20040

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SUMMARY FOR SATURDAY, NOVEMBER 16, 2024

TEMPERATURE (DEGREES F)
MAX…….60  NORMAL…..50
MIN…….38  NORMAL…..34
MEAN……49  NORMAL…..42

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+7
TOTAL DEPARTURE FOR THE MONTH…………………….+74 [+4.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………16  DEPARTURE……..-7
TOTAL HEATING UNITS FOR THE MONTH…………..262  DEPARTURE…….-70
TOTAL HEATING UNITS FOR THE SEASON………….635  DEPARTURE……-208
TOTAL HEATING UNITS LAST SEASON TO DATE……..705  DEPARTURE…….-70

COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………….5  DEPARTURE……..+5
TOTAL COOLING UNITS FOR THE SEASON………….768  DEPARTURE…….+91
TOTAL COOLING UNITS LAST SEASON TO DATE……..715  DEPARTURE…….+53

PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all on Main Tower.
E=Estimated

F420C (Official)………..33 NNW  @   03:00 P.M.
VECTOR #1 (1-Sec)……….35 NNW  @   03:00 P.M.
VECTOR #2 (1-Sec)……….37 NNW  @   02:59 P.M.
DAVIS #1……………….33 NW   @   03:00 P.M.
DAVIS #2 ………………34 NW   @   02:59 P.M.
RMY #1 (Instantaneous)…..37 NNW  @   02:59 P.M.
RMY #2 (Instantaneous)…..37 NNW  @   03:00 P.M.
MERLIN…………………32 NW
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………24 NNW  @   02:58 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..23      @   03:00 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..25      @   03:01 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………24 NW   @   03:01 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………24 NNW  @   03:01 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..23 NW   @   02:59 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..24 NW   @   03:01 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..13.4 NW  [322 total miles] VECTOR #1………………13.1
VECTOR #2………………13.3
DAVIS #1……………….13.4 NW
DAVIS #2……………….12.9 NNW
RMY #1…………………12.8 NW
RMY #2…………………13.1 NW
RICHARDS (C5C)…………..OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..0.08 DEPARTURE…..-2.22
TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.88 DEPARTURE…..-2.58

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.0
TOTAL SNOWFALL FOR THE MONTH………………..0.0 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE SEASON (2024-2025)…….0.0 DEPARTURE……-1.3

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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   77/49/63/+16/0.00/0.0/347/56       36 WNW VEC1 36 WNW RMY 37
11/2   55/37/46/-1/0.00/0.0/228/37        21 N   VEC1 23 N   RMY 21
11/3   48/30/39/-7/0.00/0.0/595/97        20 NNW VEC1 21 NNW RMY 21
11/4   49/33/41/-5/0.00/0.0/061/10        20 SSE VEC1 21 SSE RMY 21
11/5   73/46/60/+15/0.00/0.0/505/83       35 SW  VEC1 35 SW  RMY 37
11/6   80/59/70/+25/0.00/0.0/558/92       39 WSW VEC1 39 WSW RMY 42
11/7   69/47/58/+13/0.00/0.0/519/86       37 WNW VEC1 35 WNW RMY 42
11/8   63/41/52/+7/0.00/0.0/572/95        42 WNW VEC1 42 WNW RMY 47
11/9   50/36/43/-1/0.00/0.0/599/100       40 NW  VEC1 42 NW  RMY 43
11/10  60/32/46/+2/T/0.0/388/65           29 WSW VEC1 29 SW  RMY 31
11/11  66/50/58/+15/0.08/0.0/457/77       40 SW  VEC1 42 SW  RMY 43
11/12  54/33/44/+1/0.00/0.0/545/92        48 NNW VEC1 50 NNW RMY 56
11/13  43/28/36/-7/0.00/0.0/584/99        32 N   VEC1 33 N   RMY 31
11/14  42/27/35/-7/0.00/0.0/…/..        22 NE  VEC1 22 NE  RMY 22
11/15  58/27/43/+1/0.00/0.0/…/..        28 NW  VEC1 28 NW  RMY 30
11/16  60/38/49/+7/0.00/0.0/…/..        33 NNW VEC1 35 NNW RMY 35

11/17 The low since midnight is 40F, the daily normal low is 33F.

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NOVEMBER DAILY RECORDS TO DATE

11/1 RECORD HIGH TEMPERATURE OF 77F, OLD RECORD WAS 75F IN 2003.

11/6 RECORD HIGH TEMPERATURE OF 80F, OLD RECORD WAS 74F IN 2022.

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

RECORDS FOR NOVEMBER 17
HIGH 74 IN 1928
LOW 10 IN 1924
PRECIP 1.92 INCHES IN 1920
SNOWFALL 1.0 INS IN 1980
PEAK GUST 61 SSE IN 2006

RECORDS FOR NOVEMBER 18
HIGH 72 IN 1963
LOW 10 IN 1936
PRECIP 1.80 INS IN 1929
SNOWFALL 6.3 INS IN 1980
PEAK GUST 60 SW IN 1987

TODAY’S REPORT PREPARED BY: Benjamin Turner