Thursday, October 24, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
THURSDAY, OCTOBER 24, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0608E
SUNSET: 1648E
MORE CLOUDS THAN SUN AND A BIT COOLER TODAY….
There has been varying amounts of cloud cover today as a very slow
moving cold front pushes through the area. A few very light rain
showers actually managed to get squeezed out of the clouds early
this morning, but only amounted to a trace in the rain gauge. As
such, the dry stretch continues with the monthly rainfall now just
over 3.50″ below normal for the month to date. This morning’s
Drought Monitor report indicates that the northern 2/3rds of eastern
Massachusetts is now under moderate drought. The southern 1/3rd
which includes the Cape and Islands still have no drought, at least
for now.
Temperatures did make it briefly to 70F late this morning, but has
since started to fall back as the cold air advection finally gets
going. The dew point, which was holding steady in the mid 50s
through the morning hours, has finally started to drop off by the
time of the 1pm observation, with values dropping to the low 50s.
It has continued to drop since then with upper 40s being realized
as of this writing.
The wind has been fairly steady after switching to the north during
the morning hours. The average speed for the day thus far is around
11mph. It has been gusty at times, but nothing overly strong as the
peak gust has “only” been 24mph so far, which occurred at 11:10am.
Visibility has been improving as the day progresses, especially this
afternoon as the air mass dries out. The view early this morning
was only around 30 miles, but has improved to 60 miles by early this
afternoon.
The maximum temperature so far today is 70F, which is 12 degrees
above the normal high of 58F. The minimum temperature since midnight
is 56F, which is 15 degrees above the normal low of 41F.
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Today’s Observations:
7 A.M.
Weather: Broken altocumulus/castellanus, broken cirrus
Temperature: 59F; Dew Point: 55F; Relative Humidity: 86%
Wind: NNW @ 10 kts
Sea-level pressure: 1011.7 mb; 29.88 in. Hg: steady, then rising
Visibility: 30 miles, hazy
6-hr Max temp: 59F
6-hr Min temp: 56F
24-hr Precip: Trace
BHO SA 1155 E85 BKN 250 BKN 30 117/59/55/3410/988/ RW-E06 HAZY/
8/084 53006 6000/ 70000 10059 20056
10 A.M.
Weather: Thin scattered cirrus, few small cumulus distant W-N,
few altocumulus/castellanus distant SW-NW-ENE
Temperature: 67F; Dew Point: 54F; Relative Humidity: 62%
Wind: N @ 9G15 kts
Sea-level pressure: 1011.8 mb; 29.88 in. Hg: rising, then falling
Visibility: 40 miles, hazy
3-hr Precip: 0.00 inches
BHO SA 1455 250 -SCT 40 118/67/54/3509G15/988/ FEW SML CU DSNT W-N
FEW AC/ACC DSNT SW-NW-ENE HAZY/ 8/181 50001
1 P.M.
Weather: Broken cumulus, overcast altocumulus, few breaks in overcast
all quadrants
Temperature: 66F; Dew Point: 52F; Relative Humidity: 60%
Wind: N @ 8G14 kts
Sea-level pressure: 1011.6 mb; 29.87 in. Hg: falling unsteadily
Visibility: 60 miles
6-hr Max temp: 70F
6-hr Min temp: 59F
6-hr Precip: 0.00 inches
BHO SA 1755 E45 BKN 100 OVC 60 116/66/52/3508G14/987/ FEW BINOVC ALQDS/
8/27/ 57002 10070 20059
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SUMMARY FOR WEDNESDAY, OCTOBER 23, 2024
TEMPERATURE (DEGREES F)
MAX…….78 NORMAL…..58
MIN…….53 NORMAL…..41
MEAN……66 NORMAL…..50
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+16
TOTAL DEPARTURE FOR THE MONTH……………………..+53 [+2.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….0 DEPARTURE…….-15
TOTAL HEATING UNITS FOR THE MONTH…………..205 DEPARTURE…….-56
TOTAL HEATING UNITS FOR THE SEASON………….275 DEPARTURE……-103
TOTAL HEATING UNITS LAST SEASON TO DATE……..279 DEPARTURE……..-4
COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….1 DEPARTURE……..+1
TOTAL COOLING UNITS FOR THE MONTH…………….4 DEPARTURE……..-3
TOTAL COOLING UNITS FOR THE SEASON………….761 DEPARTURE…….+84
TOTAL COOLING UNITS LAST SEASON TO DATE……..704 DEPARTURE…….+57
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)………..35 SSW @ 03:46 P.M.
VECTOR #1 (1-Sec)……….35 SSW @ 03:46 P.M.
VECTOR #2 (1-Sec)……….35 SW @ 02:47 P.M.
DAVIS #1……………….39 S @ 03:11 P.M.
DAVIS #2 ………………35 WSW @ 02:47 P.M.
RMY #1 (Instantaneous)…..36 SSW @ 03:46 P.M.
RMY #2 (Instantaneous)…..38 SW @ 02:47 P.M.
MERLIN…………………33 SW
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………25 SSW @ 05:05 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..24 @ 03:11 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..25 @ 02:48 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………23 SSW @ 03:11 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………25 SW @ 02:49 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..24 SSW @ 03:12 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..25 SW @ 02:48 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……14.5 SSW [347 total miles]
VECTOR #1…………….14.6
VECTOR #2…………….15.0
DAVIS #1……………..13.0 SSW
DAVIS #2……………..15.0 SSW
RMY #1……………….14.4 SSW
RMY #2……………….15.2 SSW
RICHARDS (C5C)………….OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….TRACE DEPARTURE…..-0.19
TOTAL PRECIPITATION FOR THE MONTH…………..0.53 DEPARTURE…..-3.51
TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.57 DEPARTURE…..+0.86
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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 The low since midnight is 56F, the daily normal low is 41F.
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OCTOBER DAILY RECORDS TO DATE
10/21 RECORD HIGH TEMPERATURE OF 82F, OLD RECORD WAS 79F IN 1979
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR OCTOBER 24
HIGH 79F IN 1963
LOW 22F IN 1969
PRECIP 2.96 INCHES IN 1890
SNOWFALL 1.8 INCHES IN 1960
PEAK GUST 70 MPH SE IN 1959
RECORDS FOR OCTOBER 25
HIGH 81F IN 1963
LOW 26F IN 1922,1939
PRECIP 2.45 INCHES IN 2005
SNOWFALL 1.2 INCHES IN 1960
PEAK GUST 72 MPH ESE IN 1980
TODAY’S REPORT PREPARED BY: Matt Douglas
