Sunday, October 13, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, OCTOBER 13, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0555E
SUNSET: 1705E
OVERCAST WITH VERY LIGHT RAIN AND INCREASING VISIBILITY….
Today was very fall-like and featured overcast skies and a cool breeze
of 5-10 knots from the northeast. We recorded 0.01 inches of rain
earlier on in the day, it was a consistent, very light rainfall
between 8 AM and 12 PM.
Visibility increased from 60 miles to 80 miles as the day went on.
Conditions are dry with dew points staying in the mid 30’s. We are
looking forward to some rainfall over the next few days, as we are
currently 1.59 inches below normal for the month.
The maximum temperature so far today is 50F, which is 12 degrees below
the normal high of 62F. The minimum temperature since midnight is 44F,
which is a degree below the normal low of 45F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Clear, few altocumulus distant SE-S, few cirrus E-S-W
Temperature: 55F; Dew Point: 45F; Relative Humidity: 68%
Wind: W @ 12G19 kts
Sea-level pressure: 1016.8 mb; 30.03 in. Hg: falling, then rising
Visibility: 40 miles
6-hr Max temp: 55F
6-hr Min temp: 52F
24-hr Precip: 0.00 inches
BHO SA 1155 100 OVC 70 174/48/29/2504/004/ VIRGA SW-W-NW WND L/V/
8/07/ 53022 10048 20044
10 A.M.
Weather: Scattered stratus fractus, overcast nimbostratus,
very light rain
Temperature: 49F; Dew Point: 33F; Relative Humidity: 53%
Wind: E @ 7 kts
Sea-level pressure: 1015.0 mb; 29.97 in. Hg: falling, then more
rapidly
Visibility: 60 miles
3-hr Precip: 0.01 inches
BHO SA 1455 40 SCT 100 OVC 60R- 150/49/33/0907/997/ PCPN VRY LGT/
8/77/ 6001/ 58024
1 P.M.
Weather: Overcast altostratus
Temperature: 49F; Dew Point: 38F; Relative Humidity: 65%
Wind: NW @ 7G12 kts
Sea-level pressure: 1013.4 mb; 29.93 in. Hg: falling, then more rapidly
Visibility: 80 miles
6-hr Max temp: 50F
6-hr Min temp: 46F
6-hr Precip: 0.00 inches
BHO SA 1755 100 OVC 80 134/49/38/0407G12/993/ 8/07/ 6001/ 58016
10050 20046
————————————————————–
SUMMARY FOR SATURDAY, OCTOBER 12, 2024
TEMPERATURE (DEGREES F)
MAX…….71 NORMAL…..62
MIN…….48 NORMAL…..45
MEAN……60 NORMAL…..54
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+6
TOTAL DEPARTURE FOR THE MONTH…………………….+23 [+1.7 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….5 DEPARTURE……..-6
TOTAL HEATING UNITS FOR THE MONTH……………85 DEPARTURE…….-28
TOTAL HEATING UNITS FOR THE SEASON………….155 DEPARTURE…….-76
TOTAL HEATING UNITS LAST SEASON TO DATE……..153 DEPARTURE……..+2
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……..-5
TOTAL COOLING UNITS FOR THE SEASON………….757 DEPARTURE…….+82
TOTAL COOLING UNITS LAST SEASON TO DATE……..704 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)……….E46 NW @ 12:47 P.M.
VECTOR #1 (1-Sec)……….43 NW @ 12:47 P.M.
VECTOR #2 (1-Sec)……….45 NW @ 10:07 A.M.
DAVIS #1……………….42 WNW @ 12:17 P.M.
DAVIS #2 ………………40 WNW @ 12:00 P.M.
RMY #1 (Instantaneous)…..45 NW @ 12:47 P.M.
RMY #2 (Instantaneous)…..45 WNW @ 09:06 A.M.
MERLIN…………………41 NW
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………30 NW @ 12:19 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..28 @ 12:19 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..31 @ 12:20 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………31 WNW @ 12:19 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………30 WNW @ 12:20 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..27 NW @ 1:06 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..30 NW @ 12:20 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….15.8 NW [379 total miles]
VECTOR #1……………..15.0
VECTOR #2……………..16.2
DAVIS #1………………15.6 WNW
DAVIS #2………………15.9 WNW
RMY #1………………..14.6 WNW
RMY #2………………..15.8 WNW
RICHARDS (C5C)………….OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE MONTH…………..0.27 DEPARTURE…..-1.59
TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.31 DEPARTURE…..+2.78
————————————————————–
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/+7/0.00/438/63 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 64/45/55/0/0.00/649/95 21 NW VEC1 21 NW RMY 21
10/9 64/46/55/0/T/632/93 24 W VEC1 23 WNW RMY 23
10/10 60/42/51/-4/0.00/…/.. 36 NW VEC1 36 NW RMY 38
10/11 67/40/54/0/0.00/…/.. 28 WSW VEC1 27 WSW RMY 27
10/12 71/48/60/+6/0.00/…/.. 46 NW VEC1 43 NW RMY 45
10/13 The low since midnight is 44F, the daily normal low is 45F.
————————————————————–
OCTOBER DAILY RECORDS TO DATE
NONE.
————————————————————–
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR OCTOBER 13
HIGH 84F IN 1930,1954
LOW 29F IN 2012
PRECIP 5.87 INCHES IN 1895
SNOWFALL 4.2 INCHES IN 1934
PEAK GUST 46e MPH W IN 1950
RECORDS FOR OCTOBER 14
HIGH 79F IN 2000
LOW 28F IN 1958
PRECIP 2.69 INCHES IN 1990
SNOWFALL 2.0 INCHES IN 1913
PEAK GUST 63e W IN 1976
TODAY’S REPORT PREPARED BY: Benjamin Turner
