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Saturday, September 10, 2022

September 10, 2022

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SATURDAY, SEPTEMBER 10, 2022 ALL TIMES ARE…

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

SATURDAY, SEPTEMBER 10, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0519E
SUNSET:  1803E

WARMER WITH LIMITED VISIBILITY DUE TO SMOKE….

We observed 60 miles of visibility at most today at the 10 A.M.
observation. Conditions were almost clear for most of the day,
and wind was light and variable. The sky had a veil of smoke
from fires to the west of us.

Despite the weather being warmer, conditions remained relatively
comfortable with dew points staying in the low 60’s.

The high so far today is 85F, which is 10 degrees above the
normal maximum of 75F. The low since midnight is 61F, which is
3 degrees above the normal minimum of 58F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few cirrus SW-S, smoke layer aloft
Temperature: 65F; Dew Point: 58F; Relative Humidity: 77%
Wind: NW @ 7 kts
Sea-level pressure: 1023.0 mb; 30.21 in. Hg: rising, then more
rapidly
Visibility: 45 miles
6-hr Max temp: 65F
6-hr Min temp: 61F
24-hr Precip: 0.00 ins.
BHO SA 1155 CLR 45 230/65/58/3107/021/ FEW CI SW-S K LYR ALF/
8/002 53014 10065 20061

10 A.M.
Weather: Clear, smoke layer aloft
Temperature: 78F; Dew Point: 63F; Relative Humidity: 60%
Wind: NW @ 2 kts, light and variable
Sea-level pressure: 1023.6 mb; 30.23 in Hg: rising, then more
rapidly
Visibility: 60 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 60 236/78/63/3402/023/ K LYR ALF WND L/V/ 53006

1 P.M.
Weather: Clear, few small cumulus, smoke layer aloft
Temperature: 83F, Dew point: 60F; Relative Humidity: 46%
Wind: ESE @ 5 kts, wind light
Sea-level pressure: 1022.5 mb; 30.20 in Hg: falling, then
more slowly
Visibility: 40 miles
6-hr Max temp: 85F
6-hr Min temp: 65F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 40 225/83/60/1105/020/ FEW SML CU ALQDS K
LYR ALF WND LGT/ 8/100 56011 10085 20065

————————————————————–

SUMMARY FOR FRIDAY, SEPTEMBER 9, 2022

TEMPERATURE (DEGREES F)
MAX…….77   NORMAL…..75
MIN…….55   NORMAL…..58
MEAN……66   NORMAL…..67

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………-1
TOTAL DEPARTURE FOR THE MONTH…………………-11 [-1.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY…………….0  DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE MONTH…………….7  DEPARTURE……..-4
TOTAL HEATING UNITS FOR THE SEASON……………7  DEPARTURE…….-22
TOTAL HEATING UNITS LAST SEASON TO DATE………36  DEPARTURE…….-29

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………….1  DEPARTURE……..-3
TOTAL COOLING UNITS FOR THE MONTH……………22  DEPARTURE…….-15
TOTAL COOLING UNITS FOR THE SEASON………….858  DEPARTURE……+226
TOTAL COOLING UNITS LAST SEASON TO DATE……..672  DEPARTURE……+186

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….19 WNW @ 11:39 P.M.
AEROVANE……………….N/A
VECTOR #2 (Instantaneous)..19     @ 11:39 P.M.
DAVIS #2 ………………17 W   @ 10:24 P.M.
RMY #2 (Instantaneous)…..19 WNW @ 11:42 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………………14 WNW @ 11:22 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..15     @ 11:44 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………14 WNW @ 11:44 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 WNW @ 11:44 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……..6.3 NE [152 total miles] VECTOR #2………………7.3
DAVIS #2……………….6.9 NNE
RMY #2…………………7.2 NNE
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…..-0.12
TOTAL PRECIPITATION FOR THE MONTH…………..2.41 DEPARTURE…..+1.35
TOTAL PRECIPITATION FOR THE YEAR…………..25.99 DEPARTURE…..-9.68

————————————————————–

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   77/55/66/-1/0.00/…/..           19 WNW  AERO N/A    RMY 19

9/10  The low since midnight is 61F, 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 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

RECORDS FOR SEPTEMBER 11
HIGH 93F IN 1983, 2013
LOW 37F IN 1917
PRECIP 5.23 INCHES IN 1954 (HURRICANE EDNA)
PEAK GUST 101 MPH NW IN 1954 (HURRICANE EDNA)

TODAY’S REPORT PREPARED BY: Benjamin Turner

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Data Use & Privacy Policy

Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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