Sunday, October 9, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, OCTOBER 9, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0550E
SUNSET: 1712E
A MOSTLY CLEAR DAY WITH THE COOLEST TEMPERATURES OVERNIGHT
SO FAR….
Today started off clear with a visibility of 60 miles,
increasing to 75 miles as the day went on.
A surprise was the very chilly overnight low of 36F.
This is chilly for this time of year, despite areas lower
and south of the hill encountering frost. The low since
midnight is 11 degrees below the normal minimum of 47F.
Today featured dew points in the low to mid 30’s, and
we experienced a cool westerly breeze with frequent
gusts above 20 mph.
The high so far today is 60F, which is 4 degrees below the
normal maximum of 64F.
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Today’s Observations:
7 A.M.
Weather: Few thin cirrus
Temperature: 38F; Dew Point: 34F; Relative Humidity: 85%
Wind: W @ 10G15 kts
Sea-level pressure: 1019.1 mb; 30.09 in. Hg: falling then rising
Visibility: 60 miles, thin fog
6-hr Max temp: 38F
6-hr Min temp: 36F
24-hr Precip: 0.00 inches
BHO SA 1155 CLR 60 191/38/34/2710G15/009/ FEW THN CI ALQDS THN F
ALQDS/ 8/001 50006 10038 20036
10 A.M.
Weather: Few thin cirrus
Temperature: 52F; Dew Point: 34F; Relative Humidity: 49%
Wind: W @ 10G20 kts
Sea-level pressure: 1018.3 mb; 30.07 in Hg: rising then falling
Visibility: 75 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 75 183/52/34/2710G20/007/ FEW THN CI ALQDS/ 8/001
55008
1 P.M.
Weather: Clear, few small cumulus and thin cirrus
Temperature: 60F, Dew point: 34F; Relative Humidity: 37%
Wind: W @ 10G20 kts
Sea-level pressure: 1017.5 mb; 30.04 in Hg: falling, then more rapidly
Visibility: 75 miles
6-hr Max temp: 60F
6-hr Min temp: 38F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 75 175/60/34/2710G20/004/ FEW SML CU ALQDS FEW THN
CI ALQDS/ 8/101 58008 10060 20038
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SUMMARY FOR SATURDAY, OCTOBER 8, 2022
TEMPERATURE (DEGREES F)
MAX…….59 NORMAL…..64
MIN…….40 NORMAL…..47
MEAN……50 NORMAL…..55
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….-5
TOTAL DEPARTURE FOR THE MONTH………………….-13 [-1.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………15 DEPARTURE……..+5
TOTAL HEATING UNITS FOR THE MONTH……………79 DEPARTURE……..+9
TOTAL HEATING UNITS FOR THE SEASON………….178 DEPARTURE……..-9
TOTAL HEATING UNITS LAST SEASON TO DATE……..125 DEPARTURE…….+53
COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………….0 DEPARTURE……..-4
TOTAL COOLING UNITS FOR THE SEASON………….884 DEPARTURE……+210
TOTAL COOLING UNITS LAST SEASON TO DATE……..714 DEPARTURE……+170
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….23 NW @ 12:01 A.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..24 @ 12:01 A.M.
DAVIS #2 ………………21 NW @ 12:02 A.M.
RMY #2 (Instantaneous)…..23 NW @ 12:01 A.M.
ASOS………..OUT OF SERVICE D/T RENOVATIONS
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…….OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
MERLIN………OUT OF SERVICE D/T RENOVATIONS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………14 NW @ 12:10 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16 @ 12:09 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………16 NW @ 12:09 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 NW @ 12:09 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……..OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE….OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE RMY #1 AVERAGE……OUT OF SERVICE D/T RENOVATIONS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..9.5 WNW [228 total miles]
VECTOR #2……………..10.2
DAVIS #2………………10.1 NW
RMY #2………………..10.1 WNW
RMY #1……….OUT OF SERVICE D/T RENOVATIONS
ASOS…………OUT OF SERVICE D/T RENOVATIONS
VECTOR #1…….OUT OF SERVICE D/T RENOVATIONS
DAVIS #1……..OUT OF SERVICE D/T RENOVATIONS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE MONTH…………..1.80 DEPARTURE…..+0.47
TOTAL PRECIPITATION FOR THE YEAR…………..29.79 DEPARTURE….-10.21
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PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system gust
RMY: R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
10/1 56/48/52/-6/0.02/000/00 26 NE AERO N/A RMY 27
10/2 55/48/52/-6/0.00/077/11 53 ENE AERO N/A RMY 55
10/3 54/48/51/-6/0.00/014/02 41 ENE AERO N/A RMY 41
10/4 56/49/53/-4/0.62/000/00 39 ENE AERO N/A RMY 38
10/5 56/52/54/-3/1.09/000/00 32 NNE AERO N/A RMY 32
10/6 72/56/64/+8/0.05/…/.. 23 N AERO N/A RMY 23
10/7 77/52/65/+9/0.00/…/.. 31 NW AERO N/A RMY 31
10/8 59/40/50/-5/0.02/…/.. 23 NW AERO N/A RMY 23
10/9 The low since midnight is 36F, the daily normal low is 47F
DAILY RECORDS
10/02/2022: NEW PEAK WIND GUST RECORD OF 53 MPH ENE,
PREVIOUS RECORD WAS 52e MPH S IN 1952 AND
52 MPH NNW IN 1984.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR OCTOBER 9
HIGH 82F IN 2011
LOW 29F IN 1907,1937
PRECIP 2.54 INCHES IN 1976
SNOWFALL TRACE IN 1988, 2001
PEAK GUST 81e MPH S IN 1976 (RECORD FOR MONTH)
RECORDS FOR OCTOBER 10
HIGH 85F IN 1949
LOW 27F IN 1929
PRECIP 2.02 INCHES IN 1998
SNOWFALL 6.8 INCHES IN 1979 (RECORD FOR MONTH)
PEAK GUST 59 MPH WNW IN 1958
TODAY’S REPORT PREPARED BY: Benjamin Turner
