Saturday, November 2, 2024

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

SATURDAY, NOVEMBER 2, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0618E
SUNSET:  1637E

MUCH COOLER WITH INCREASING CLOUDINESS….

We began the morning with mostly sunny skies, with just some scattered
mid-level clouds in the area. Since then, stratocumulus have developed and
increased in coverage, filling the majority of the sky. A few showers were
observed in the distance this morning offshore, and to our west during the
early afternoon, but unfortunately none have made it to our immediate area.

Following the passage of a cold front yesterday, temperatures have remained
nearer to average today. We began the morning in the low 40s, rising slowly
to the mid 50s. The dew point has remained in the low 40s.

Winds slowed significantly through the overnight and early this morning.
Our average speed for the day so far is only 10mph, though the past several
hours have been below that. The peak gust took place around 9:30am, with a
value of 20mph.

Visibility has improved as the day has progressed, now up to 70 miles. A
smoke plume that was to our ENE this morning is now diminished, thanks
to firefighting efforts that remain ongoing. Another plume appeared to our
south by 10am.

The maximum temperature so far today is 55F, which is equal to
the normal high of 55F. The minimum temperature since midnight
is 44F, which is 6 degrees above the normal low of 38F.

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PRELIMINARY STATS FOR OCTOBER 2024

TEMPERATURE, Deg. F
Avg. Max. 64.7 [+3.7] Avg. Min. 45.6 [+1.6] Mean      55.2 [+2.7] 24-hour corrected mean: 54.3
Max. for month: 82F on the 21st
Min. for month: 35F on the 15th

HEATING DEGREE DAYS
Total heating units:    303 [-091] Total for the season:   373 [-139] Total for last season:  350

COOLING DEGREE DAYS
Total cooling units:      6 [-001] Total for the season:   763 [+086] Total for last season:  715

PRECIPITATION, Inches
Total: 0.76 [-4.73] Greatest in 24 hrs: 0.27 on the 7th

SNOWFALL, Inches
Total: 0.0 [-0.7] Greatest in 24 hrs: 0.0 on the N/A

WIND, mph
Avg. uncorrected wind speed: 10.4 mph
Avg. corrected wind speed:   10.9 mph
Prevailing wind direction:   West-Northwest [11%] Peak gust and direction:  44 NW on the 12th

SUNSHINE:
Campbell-Stokes card minutes: 14232 of a possible 19824, or 72%
Astronomical total minutes: 14708 of a possible 20501 or 72%

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Today’s Observations:

7 A.M.
Weather: Scattered altocumulus/altostratus
Temperature: 47F; Dew Point: 40F; Relative Humidity: 77%
Wind: NW @ 9G13 kts
Sea-level pressure: 1023.5 mb; 30.22 in. Hg: rising, then more rapidly
Visibility: 30 miles, smoke plume ENE
6-hr Max temp: 47F
6-hr Min temp: 44F
24-hr Precip:  0.00 inches
BHO SA 1155 70 SCT 30 235/47/40/3109G13/022/ K PLUME ENE/ 8/070 53019
10047 20044

10 A.M.
Weather: Overcast stratocumulus, few breaks in overcast distant SE-S-WSW
Temperature: 52F; Dew Point: 42F; Relative Humidity: 68%
Wind: N @ 7 kts
Sea-level pressure: 1025.0 mb; 30.27 in. Hg: rising unsteadily
Visibility: 40 miles, smoke plume S
3-hr Precip: 0.00 inches
BHO SA 1455 E35 OVC 40 250/52/42/0107/027/ FEW BINOVC DSNT SE-S-WSW
K PLUME S/ 8/5// 52015

1 P.M.
Weather: Overcast stratocumulus, few breaks in overcast N-NE and distant SE-WSW,
few cumulus all quadrants
Temperature: 51F; Dew Point: 40F; Relative Humidity: 66%
Wind: NNW @ 8 kts
Sea-level pressure: 1024.7 mb; 30.26 in. Hg: falling, then steady
Visibility: 70 miles, smoke plumes S and distant N
6-hr Max temp: 55F
6-hr Min temp: 47F
6-hr Precip: 0.00 inches
BHO SA 1755 E50 OVC 70 247/51/40/3408/026/ FEW BINOVC N-NE AND DSNT SE-WSW
FEW CU ALQDS K PLUMES S AND DSNT N/ 8/8// 56003 10055 20047

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SUMMARY FOR FRIDAY, NOVEMBER 1, 2024

TEMPERATURE (DEGREES F)
MAX…….77R NORMAL…..55
MIN…….49  NORMAL…..38
MEAN……63  NORMAL…..47

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+16
TOTAL DEPARTURE FOR THE MONTH……………………..+16 [+15.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….2  DEPARTURE…….-16
TOTAL HEATING UNITS FOR THE MONTH…………….2  DEPARTURE…….-16
TOTAL HEATING UNITS FOR THE SEASON………….375  DEPARTURE……-155
TOTAL HEATING UNITS LAST SEASON TO DATE……..378  DEPARTURE……..-3

COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………….0  DEPARTURE………0
TOTAL COOLING UNITS FOR THE SEASON………….763  DEPARTURE…….+86
TOTAL COOLING UNITS LAST SEASON TO DATE……..715  DEPARTURE…….+48

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  @   02:57 P.M.
VECTOR #1 (1-Sec)………E36 WNW  @   05:36 P.M.
VECTOR #2 (1-Sec)………E38 WNW  @   05:37 P.M.
DAVIS #1……………….37 W    @   02:48 P.M.
DAVIS #2 ………………42 WNW  @   02:57 P.M.
RMY #1 (Instantaneous)….E37 NW   @   04:16 P.M.
RMY #2 (Instantaneous)….E39 WNW  @   05:37 P.M.
MERLIN…………………35 W
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………28 W    @   02:59 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE……………M
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE……………M
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………30 W    @   03:00 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………31 WNW  @   02:58 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE………………M
MAXIMUM 2-MINUTE RMY #2 AVERAGE………………M
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..15.1 SW [363 total miles] VECTOR #1…………………M
VECTOR #2…………………M
DAVIS #1……………….14.8 WSW
DAVIS #2……………….15.4 W
RMY #1……………………M
RMY #2……………………M
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…………..0.00 DEPARTURE…..-0.15
TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.80 DEPARTURE…..-0.51

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…….0.0
TOTAL SNOWFALL FOR THE SEASON (2024-2025)…….0.0 DEPARTURE……-0.7

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

10/1   66/55/61/+3/T/134/19               28 ENE VEC1 28 ENE RMY 29
10/2   66/52/59/+1/T/252/36               21 ENE VEC1 20 ENE RMY 20
10/3   72/52/62/+5/0.00/592/85            23 S   VEC1 23 S   RMY 23
10/4   74/54/64/+7/0.00/452/65            23 SW  VEC1 22 SW  RMY 22
10/5   72/52/62/+5/T/457/66               24 NNW VEC1 23 NNW RMY 24
10/6   65/47/56/0/0.00/655/95             20 SE  VEC1 19 SE  RMY 18
10/7   60/51/56/0/0.27/021/03             29 SSE VEC1 29 SSE RMY 31
10/8   64/45/55/0/0.00/663/97             21 NW  VEC1 21 NW  RMY 21
10/9   64/46/55/0/T/639/94                24 W   VEC1 23 WNW RMY 23
10/10  60/42/51/-4/0.00/616/91            36 NW  VEC1 36 NW  RMY 38
10/11  67/40/54/0/0.00/635/94             28 WSW VEC1 27 WSW RMY 27
10/12  71/48/60/+6/0.00/652/97            44 NW  VEC1 43 NW  RMY 45
10/13  50/44/47/-7/0.20/007/01            32 ENE VEC1 32 ENE RMY 30
10/14  51/38/45/-8/0.06/000/00            35 NW  VEC1 34 WNW RMY 36
10/15  55/35/45/-8/0.00/617/93            31 W   VEC1 30 WNW RMY 31
10/16  56/38/47/-5/0.00/615/93            32 NW  VEC1 31 NW  RMY 32
10/17  54/35/45/-7/0.00/421/64            22 NE  VEC1 22 NE  RMY 20
10/18  59/40/50/-2/0.00/656/100           28 NNE VEC1 28 NE  RMY 27
10/19  72/46/59/+8/0.00/653/100           20 WSW VEC1 19 WSW RMY 19
10/20  76/47/62/+11/0.00/650/100          21 WSW VEC1 22 WSW RMY 23
10/21  82/52/67/+16/0.00/628/97           25 WNW VEC1 25 W   RMY 26
10/22  74/58/66/+16/0.00/632/98           18 WNW VEC1 17 WNW RMY 17
10/23  78/53/66/+16/0.00/571/89           35 SSW VEC1 35 SSW RMY 36
10/24  70/47/59/+9/T/346/54               26 NNW VEC1 26 NNW RMY 26
10/25  61/40/51/+2/0.00/636/100           20 NNW VEC1 21 NNW RMY 20
10/26  64/43/54/+5/0.00/495/78            37 W   VEC1 39 W   RMY 41
10/27  53/36/45/-4/0.00/625/99            28 W   VEC1 29 WNW RMY 30
10/28  50/36/43/-5/0.00/560/89            20 NNW VEC1 21 NNW RMY 22
10/29  53/38/46/-2/0.01/157/25            24 SSE VEC1 25 SSE RMY 24
10/30  71/46/59/+11/0.22/249/40           28 SSE VEC1 31 SSE RMY 28
10/31  76/57/67/+20/0.00/422/68           28 SSW VEC1 28 SSW RMY 29

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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/…/..       36 WNW VEC1 36 WNW RMY 37

11/2 The low since midnight is 44F, the daily normal low is 38F.

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NOVEMBER DAILY RECORDS TO DATE

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

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

RECORDS FOR NOVEMBER 2
HIGH 81 IN 1950
LOW 22 IN 1965
PRECIP 1.67 INCHES IN 1970
SNOWFALL 1.8 IN 2014
PEAK GUST 63 WSW IN 1973

RECORDS FOR NOVEMBER 3
HIGH 75 IN 1990
LOW 21 IN 1891
PRECIP 1.92 INCHES IN 1951
SNOWFALL 0.1 IN 1951
PEAK GUST 96e SSE IN 1951

TODAY’S REPORT PREPARED BY: Joshua Polen