Saturday, November 30, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SATURDAY, NOVEMBER 30, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0653E
SUNSET: 1613E
COLD AND DRY TO WRAP UP NOVEMBER….
Abundant sunshine has been the theme today, and if only it were not so
chilly it would be a great day to get outdoors. That said, the conditions
locally are ideal for those returning home from any Thanksgiving travels.
Temperatures are on the cold side today. We began the morning in the mid 20s,
and following sunrise warmed slowly to the upper 30s. The dew point has remained
nearly unchanged in the low to mid 20s.
Winds have been relatively light, which is beneficial given the cold
temperatures. The average speed so far is 10mph, primarily out of the west.
The peak gust took place just before 9:40am, with a value of 22mph.
Visibility has been decent, improving from 40 to 60 miles by the afternoon.
The maximum temperature for today is 39F degrees, which is 6 degrees
below the normal high of 45F. The minimum temperature since midnight
is 26F degrees, which is 3 degrees below the normal low of 29F.
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Today’s Observations:
7 A.M.
Weather: Clear, few stratocumulus offshore distant NE-SE-SSW
Temperature: 27F; Dew Point: 24F; Relative Humidity: 89%
Wind: W @ 9 kts
Sea-level pressure: 1011.9 mb; 29.88 in. Hg: rising unsteadily
Visibility: 40 miles
6-hr Max temp: 32F
6-hr Min temp: 26F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 CLR 40 119/27/24/2709/988/ FEW SC OFFSHR DSNT NE-SE-SSW/
8/500 52012 10032 20026
10 A.M.
Weather: Clear, few stratocumulus distant all quadrants
Temperature: 34F; Dew Point: 24F; Relative Humidity: 67%
Wind: W @ 9G15 kts
Sea-level pressure: 1012.7 mb; 29.91 in. Hg: rising, then falling
Visibility: 60 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 60 127/34/24/2809G15/991/ FEW SC DSNT ALQDS/ 8/500 50008
1 P.M.
Weather: Clear, few stratocumulus distant all quadrants
Temperature: 39F; Dew Point: 22F; Relative Humidity: 50%
Wind: WSW @ 8 kts
Sea-level pressure: 1011.5 mb; 29.87 in. Hg: falling, then more rapidly
Visibility: 60 miles
6-hr Max temp: 39F
6-hr Min temp: 27F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 CLR 60 115/39/22/2508/987/ FEW SC DSNT ALQDS/ 8/500 58012
10039 20027
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SUMMARY FOR FRIDAY, NOVEMBER 29, 2024
TEMPERATURE (DEGREES F)
MAX…….44 NORMAL…..45
MIN…….32 NORMAL…..30
MEAN……38 NORMAL…..38
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………0
TOTAL DEPARTURE FOR THE MONTH……………………+131 [+4.3 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………27 DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE MONTH…………..538 DEPARTURE……-126
TOTAL HEATING UNITS FOR THE SEASON………….911 DEPARTURE……-265
TOTAL HEATING UNITS LAST SEASON TO DATE…….1058 DEPARTURE……-147
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)………..36 WNW @ 01:34 A.M.
VECTOR #1 (1-Sec)……….36 WNW @ 01:34 A.M.
VECTOR #2 (1-Sec)……….39 WNW @ 02:05 A.M.
DAVIS #1……………….35 W @ 01:34 A.M.
DAVIS #2 ………………36 NNW @ 02:05 A.M.
RMY #1 (Instantaneous)…..37 NW @ 02:05 A.M.
RMY #2 (Instantaneous)…..41 WNW @ 02:05 A.M.
MERLIN………………….M
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………24 WNW @ 02:08 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..24 @ 02:07 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..28 @ 02:07 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………25 WNW @ 02:07 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………27 NW @ 02:07 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..23 WNW @ 02:07 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..27 WNW @ 02:07 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..11.8 W [282 total miles]
VECTOR #1………………11.7
VECTOR #2………………12.5
DAVIS #1……………….12.0 W
DAVIS #2……………….12.4 WNW
RMY #1…………………11.3 W
RMY #2…………………12.3 W
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE MONTH…………..3.67 DEPARTURE…..-0.48
TOTAL PRECIPITATION FOR THE YEAR (2024)…….47.47 DEPARTURE…..-0.84
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.2
TOTAL SNOWFALL FOR THE MONTH………………..0.0 DEPARTURE……-1.7
TOTAL SNOWFALL FOR THE SEASON (2024-2025)…….0.0 DEPARTURE……-2.4
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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/-7/0.00/0.0/542/92 22 NE VEC1 22 NE RMY 22
11/15 58/27/43/+1/0.00/0.0/580/99 28 NW VEC1 28 NW RMY 30
11/16 60/38/49/+7/0.00/0.0/572/98 33 NNW VEC1 35 NNW RMY 35
11/17 62/40/51/+10/0.00/0.0/553/95 26 NW VEC1 26 NW RMY 26
11/18 61/43/52/+11/T/0.0/418/72 29 NW VEC1 28 NW RMY 31
11/19 56/39/48/+7/0.00/0.0/565/98 29 NW VEC1 29 NW RMY 30
11/20 52/36/44/+4/T/0.0/564/98 21 E VEC1 21 E RMY 21
11/21 44/43/44/+4/1.27/0.0/000/00 51 ENE VEC1 50 ENE RMY 52
11/22 52/40/46/+6/0.55/0.0/372/65 44 E VEC1 47 E RMY 45
11/23 44/38/41/+2/0.71/0.0/000/00 46 NW VEC1 45 NW RMY 49
11/24 48/35/42/+3/0.00/0.0/523/92 52 WNW VEC1 53 WNW RMY 53
11/25 49/32/41/+2/0.00/0.0/556/98 33 WNW VEC1 34 WNW RMY 34
11/26 44/35/40/+2/0.37/0.0/062/11 28 WNW VEC1 29 NW RMY 28
11/27 49/33/41/+3/0.00/0.0/513/91 25 W VEC1 25 W RMY 25
11/28 45/36/41/+3/0.69/0.0/000/00 35 NW VEC1 35 NW RMY 35
11/29 44/32/38/0/0.00/0.0/…/.. 36 WNW VEC1 36 WNW RMY 37
11/30 The low since midnight is 26F, the daily normal low is 29F.
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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 30
HIGH 67 IN 2006
LOW 6 IN 1891
PRECIP 2.50 INCHES IN 1944
SNOWFALL 10.2 INS IN 1945
PEAK GUST 90 SSW IN 1963
RECORDS FOR DECEMBER 1
HIGH 70 IN 2001
LOW 3 IN 1887
PRECIP 1.46 INS. IN 1917
SNOW 5.7 INS. IN 2019
PEAK GUST 72 MPH NW IN 1964
TODAY’S REPORT PREPARED BY: Joshua Polen