Friday, September 9, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
FRIDAY, SEPTEMBER 9, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0518E
SUNSET: 1804E
WARMER AS SKIES BECOME CLEAR ATOP GREAT BLUE HILL….
We observed a great 80 miles of visibility today after
starting with 5 miles this morning due to fog. Conditions
were almost clear for most of the day, and wind was light
and easterly off the water.
A thin smoke layer aloft is revealed after the morning fog burned
off, indicating some regional brush fires. No plumes were spotted
from the hill, however.
The high so far today is 76F, which is a degree above the
normal maximum of 75F. The low since midnight is 55F, which is
3 degrees below the normal minimum of 58F.
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Today’s Observations:
7 A.M.
Weather: Overcast stratus
Temperature: 58F; Dew Point: 57F; Relative Humidity: 97%
Wind: NE @ 7 kts
Sea-level pressure: 1018.1 mb; 30.06 in. Hg: rising, then more
slowly
Visibility: 5 miles, fog
6-hr Max temp: 58F
6-hr Min temp: 55F
24-hr Precip: 0.00 ins.
BHO SA 1155 10 OVC 5F 181/58/57/0507/006/ 8/6// 51016 10058 20055
10 A.M.
Weather: Scattered cumulus
Temperature: 67F; Dew Point: 59F; Relative Humidity: 75%
Wind: E @ 4 kts, light and variable
Sea-level pressure: 1019.3 mb; 30.10 in Hg: rising, then more
slowly
Visibility: 60 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 30 SCT 60 193/67/59/0904/010/ WND L/V/ 8/200 51012
1 P.M.
Weather: Clear, few small cumulus, smoke layer aloft
Temperature: 75F, Dew point: 49F; Relative Humidity: 40%
Wind: E @ 4 kts, light and variable
Sea-level pressure: 1018.6 mb; 30.08 in Hg: falling, then
more rapidly
Visibility: 70 miles
6-hr Max temp: 76F
6-hr Min temp: 58F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 70 186/75/49/0904/008/ FEW SML CU ALQDS K LYR
ALF WND L/V/ 8/100 58007 10076 20058
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SUMMARY FOR THURSDAY, SEPTEMBER 8, 2022
TEMPERATURE (DEGREES F)
MAX…….71 NORMAL…..76
MIN…….56 NORMAL…..58
MEAN……64 NORMAL…..67
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………-3
TOTAL DEPARTURE FOR THE MONTH…………………-10 [-1.5 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….1 DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE MONTH…………….7 DEPARTURE……..-3
TOTAL HEATING UNITS FOR THE SEASON……………7 DEPARTURE…….-21
TOTAL HEATING UNITS LAST SEASON TO DATE………36 DEPARTURE…….-29
COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE……..-4
TOTAL COOLING UNITS FOR THE MONTH……………21 DEPARTURE…….-12
TOTAL COOLING UNITS FOR THE SEASON………….857 DEPARTURE……+228
TOTAL COOLING UNITS LAST SEASON TO DATE……..669 DEPARTURE……+188
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….20 ENE @ 3:18 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..22 @ 3:18 P.M.
DAVIS #2 ………………18 ENE @ 11:40 A.M.
RMY #2 (Instantaneous)…..20 ENE @ 1:26 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………………13 ENE @ 12:42 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15 @ 12:41 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………15 E @ 12:41 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 ENE @ 12:41 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……..8.5 ENE [205 total miles]
VECTOR #2………………9.3
DAVIS #2……………….8.5 ENE
RMY #2…………………9.1 NE
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…..-0.11
TOTAL PRECIPITATION FOR THE MONTH…………..2.41 DEPARTURE…..+1.47
TOTAL PRECIPITATION FOR THE YEAR…………..25.99 DEPARTURE…..-9.56
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PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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
9/1 78/59/69/0/0.00/…/.. 36 WNW AERO N/A RMY 37
9/2 73/53/63/-6/0.00/…/.. 19 N AERO N/A RMY 19
9/3 80/59/70/+2/0.00/…/.. 23 S AERO N/A RMY 24
9/4 86/61/74/+6/0.00/…/.. 20 SSW AERO N/A RMY 20
9/5 75/60/68/0/0.83/…/.. 20 E AERO N/A RMY 19
9/6 63/60/62/-6/…./…/.. 27 NE AERO N/A RMY 26
9/7 70/57/64/-3/…./…/.. 22 NE AERO N/A RMY 21
9/8 71/56/64/-3/…./…/.. 20 ENE AERO N/A RMY 20
9/9 The low since midnight is 55F, the daily normal low is 58F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR SEPTEMBER 9
HIGH 92F IN 2015
LOW 41F IN 1938
PRECIP 1.97 INCHES IN 1969
PEAK GUST 52 MPH WNW IN 1969, NW IN 1978
RECORDS FOR SEPTEMBER 10
HIGH 90F IN 1931,1989
LOW 41F IN 1956
PRECIP 5.60 INCHES IN 1999 (DAILY RECORD FOR SEPTEMBER)
PEAK GUST 48 MPH NW IN 1972
TODAY’S REPORT PREPARED BY: Benjamin Turner
