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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
WEDNESDAY, OCTOBER 30, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0616E
SUNSET: 1639E
EARLY MORING RAINFALL, CLOUDS, AND, FOG CLEAR OUT LEAVING US WITH
PARTIAL SUNSHINE AND WARMER TEMPERATURES….
A warm front pushed through the region early this morning bringing
some much needed rainfall with it. 0.23″ of rain fell here on the
Hill, bringing the monthly total up to 0.76″. This is still a
whooping 4.38″ below normal to date, but it was enough to move the
ranking for driest October from 4th place to 6th place.
Once the rain and fog cleared out this morning, gradual thinning of
the clouds commenced with all the low clouds dissipating by late
morning. However, a layer of cirrus clouds remain thus giving us
filtered sunshine through the afternoon.
Temperatures slowly rose through the 50s this morning, finally
shooting through the 60s to the low 70s by mid afternoon. And just
like that, we’re back above normal in the temperature department
after a few cooler days. The dew point has also been rising, from
the low 50s early this morning to the upper 50s this afternoon.
Winds were gusty early this morning, but have since decreased as
the day has progressed. A south-southeast wind this morning gradually
veered to the south-southwest and southwest by early this afternoon.
The average speed for the day so far is around 11mph. The peak gust
for the day 28mph, which occurred around 3:14am this morning.
Visibility started the day very limited with a view of only around
1/16th of a mile thanks to the dense fog (being in the clouds). But
it has gradually increased through the day as the fog dissipated,
reaching around 25 miles by early this afternoon.
The maximum temperature so far today is 70F, which is 14 degrees
above the normal high of 56F. The minimum temperature since midnight
is 46F, which is 7 degrees above the normal low of 39F.
As mentioned above, the month of October is currently ranking as 6th
driest on record. Here is a list of rankings as compiled by our Chief
Scientist Mike Iacono.
BHO Lowest October Precipitation, inches (1885-2024):
1) 0.22 in 1924
2) 0.39 in 1994
3) 0.50 in 1946
4) 0.61 in 1935
5) 0.63 in 1897
6) 0.76 in 2024 (through 10/30)
7) 0.79 in 2001
8) 1.09 in 2013
————————————————————–
Today’s Observations:
7 A.M.
Weather: Sky obscured, vertical visibility 200ft
Temperature: 52F; Dew Point: 52F; Relative Humidity: 100%
Wind: S @ 8G13 kts
Sea-level pressure: 1028.6 mb; 30.38 in. Hg: rising, then steady
Visibility: 1/16 mile, fog
6-hr Max temp: 52F
6-hr Min temp: 46F
24-hr Precip: 0.23 inches
BHO SA 1155 X W2 1/16F 286/52/52/1708G13/038/ 8//// 51001 6011/
70023 10052 20046
10 A.M.
Weather: Overcast stratus
Temperature: 58F; Dew Point: 56F; Relative Humidity: 94%
Wind: S @ 7 kts
Sea-level pressure: 1027.8 mb; 30.35 in. Hg: falling, then more rapidly
Visibility: 12 miles, thin fog
3-hr Precip: 0.00 inches
BHO SA 1455 E5 OVC 12 278/58/56/1707/035/ THN F ALQDS/ 8/6// 58008
1 P.M.
Weather: Broken cirrus
Temperature: 67F; Dew Point: 57F; Relative Humidity: 70%
Wind: SW @ 6 kts, wind light
Sea-level pressure: 1024.9 mb; 30.27 in. Hg: falling, then more slowly
Visibility: 25 miles, hazy
6-hr Max temp: 68F
6-hr Min temp: 52F
6-hr Precip: 0.00 inches
BHO SA 1755 E250 BKN 25 249/67/57/2206/027/ HAZY WND LGT/ 8/004 56029
10068 20052
————————————————————–
SUMMARY FOR TUESDAY, OCTOBER 29, 2024
TEMPERATURE (DEGREES F)
MAX…….53 NORMAL…..56
MIN…….38 NORMAL…..39
MEAN……46 NORMAL…..48
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………-2
TOTAL DEPARTURE FOR THE MONTH……………………..+58 [+1.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………19 DEPARTURE……..+2
TOTAL HEATING UNITS FOR THE MONTH…………..297 DEPARTURE…….-62
TOTAL HEATING UNITS FOR THE SEASON………….367 DEPARTURE……-109
TOTAL HEATING UNITS LAST SEASON TO DATE……..309 DEPARTURE…….+58
COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE………0
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……..715 DEPARTURE…….+46
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)………..24 SSE @ 10:24 P.M.
VECTOR #1 (1-Sec)……….25 SSE @ 10:14 P.M.
VECTOR #2 (1-Sec)……….25 SSE @ 10:37 P.M.
DAVIS #1……………….24 SSE @ 10:36 P.M.
DAVIS #2 ………………27 S @ 02:21 P.M.
RMY #1 (Instantaneous)…..24 SSE @ 10:11 P.M.
RMY #2 (Instantaneous)…..27 SE @ 10:23 P.M.
MERLIN…………………M
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………17 SSE @ 10:33 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..18 @ 10:12 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 @ 10:39 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 SSE @ 10:12 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………20 S @ 01:05 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..17 SSE @ 10:12 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..18 SSE @ 02:37 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..10.6 SSE [254 total miles]
VECTOR #1………………10.8
VECTOR #2………………11.3
DAVIS #1……………….10.4 SSE
DAVIS #2……………….10.4 SSE
RMY #1…………………10.3 SSE
RMY #2…………………11.4 SSE
RICHARDS (C5C)………….OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.23 DEPARTURE…..+0.05
TOTAL PRECIPITATION FOR THE MONTH…………..0.76 DEPARTURE…..-4.38
TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.80 DEPARTURE…..-0.01
————————————————————–
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/…/.. 26 NNW VEC1 26 NNW RMY 26
10/25 61/40/51/+2/0.00/…/.. 20 NNW VEC1 21 NNW RMY 20
10/26 64/43/54/+5/0.00/…/.. 37 W VEC1 39 W RMY 41
10/27 53/36/45/-4/0.00/…/.. 28 W VEC1 29 WNW RMY 30
10/28 50/36/43/-5/0.00/…/.. 20 NNW VEC1 21 NNW RMY 22
10/29 53/38/46/-2/0.01/…/.. 24 SSE VEC1 25 SSE RMY 24
10/30 The low since midnight is 46F, the daily normal low is 39F.
————————————————————–
OCTOBER DAILY RECORDS TO DATE
10/21 RECORD HIGH TEMPERATURE OF 82F, OLD RECORD WAS 79F IN 1979
————————————————————–
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR OCTOBER 30
HIGH 75F IN 1946,1989
LOW 21F IN 1928
PRECIP 1.85 INCHES IN 1917
SNOWFALL 6.5 INCHES IN 2020
PEAK GUST 73 SE IN 2017
RECORDS FOR OCTOBER 31
HIGH 79F IN 1946
LOW 22F IN 1904
PRECIP 3.74 INCHES IN 1991
SNOWFALL TRACE IN 1906
PEAK GUST 70e S IN 1945
TODAY’S REPORT PREPARED BY: Matt Douglas
