Monday, October 10, 2022

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

MONDAY, OCTOBER 10, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0551E
SUNSET: 1710E

MOSTLY CLOUDY WITH LIMITED VISIBILITY, AND
FEELING A BIT WARMER….

We observed a visibility of 40 miles today, due to
a thick layer of haze.

Today felt warmer than the day before, as we had dew
points in the mid 40’s and a decent southerly breeze
around 10 mph.

Today is mostly cloudy with some breaks here or there,
definitely a good example of a mid-fall day.

The low since midnight is 45F, a degree below the normal low.
The high so far today is 65F, which is 2 degrees above the
normal maximum of 63F.

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Today’s Observations:

7 A.M.
Weather: Broken altocumulus and thin overcast cirrus
with breaks SE-S
Temperature: 49F; Dew Point: 41F; Relative Humidity: 74%
Wind: S @ 9G17 kts
Sea-level pressure: 1022.1 mb; 30.18 in. Hg: rising, then more
slowly
Visibility: 40 miles, hazy
6-hr Max temp: 50F
6-hr Min temp: 47F
24-hr Precip: 0.00 inches
BHO SA 1155 110 BKN 250 -OVC 40 221/49/41/1809G17/018/ FEW BINOVC
SE-S HAZY/ 8/051 51006 10050 20047

10 A.M.
Weather: Broken altocumulus, overcast cirrostratus
Temperature: 61F; Dew Point: 44F; Relative Humidity: 53%
Wind: SSW @ 8 kts
Sea-level pressure: 1021.8 mb; 30.17 in Hg: rising then falling
Visibility: 40 miles, hazy
3-hr Precip: 0.00 ins.
BHO SA 1455 110 BKN 250 OVC 40 218/61/44/2008/017/ HAZY/ 8/057 55003

1 P.M.
Weather: Broken altocumulus, overcast cirrostratus with
breaks overhead
Temperature: 63F, Dew point: 41F; Relative Humidity: 44%
Wind: W @ 15G22 kts
Sea-level pressure: 1020.9 mb; 30.14 in Hg: falling, then more rapidly
Visibility: 40 miles, hazy
6-hr Max temp: 65F
6-hr Min temp: 49F
6-hr Precip: 0.00 ins.
BHO SA 1755 110 BKN 250 OVC 40 209/63/41/2715G22/014/ FEW BINOVC
OVHD HAZY/ 8/057 58009 10065 20049

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SUMMARY FOR SUNDAY, OCTOBER 9, 2022

TEMPERATURE (DEGREES F)
MAX…….61 NORMAL…..64
MIN…….36 NORMAL…..47
MEAN……49 NORMAL…..55

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….-6
TOTAL DEPARTURE FOR THE MONTH………………….-19 [-2.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………16 DEPARTURE……..+6
TOTAL HEATING UNITS FOR THE MONTH……………95 DEPARTURE……..+9
TOTAL HEATING UNITS FOR THE SEASON………….194 DEPARTURE……..-4
TOTAL HEATING UNITS LAST SEASON TO DATE……..132 DEPARTURE…….+62

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)…….30 W @ 10:44 A.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..33 @ 1:30 P.M.
DAVIS #2 ………………29 W @ 10:44 A.M.
RMY #2 (Instantaneous)…..31 W @ 12:47 P.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………………22 W @ 1:01 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22 @ 1:01 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………23 W @ 1:01 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..21 W @ 1:01 P.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…….11.2 W [269 total miles] VECTOR #2……………..12.0
DAVIS #2………………12.2 W
RMY #2………………..11.9 W
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…..-0.18
TOTAL PRECIPITATION FOR THE MONTH…………..1.80 DEPARTURE…..+0.29
TOTAL PRECIPITATION FOR THE YEAR…………..29.79 DEPARTURE….-10.29

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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 61/36/49/-6/0.00/…/.. 30 W AERO N/A RMY 30

10/10 The low since midnight is 45F, the daily normal low is 46F

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 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

RECORDS FOR OCTOBER 11
HIGH 80F IN 1919,1949
LOW 28F IN 1993
PRECIP 1.36 INCHES IN 2019
SNOWFALL (NONE)
PEAK GUST 66e MPH WNW IN 1941

TODAY’S REPORT PREPARED BY: Benjamin Turner