Tuesday, November 9, 2021
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, NOVEMBER 9, 2021
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0628E
SUNSET: 1628E
….ANOTHER WARM DAY UNDER ABUNDANT SUNSHINE, NO RAIN HAS BEEN
RECORDED IN THE PAST 9 DAYS….
Exceptional fall weather continues today with a boat load of
sunshine and temperatures that have surged into the upper
60s and low 70s, much above normal for this time of year.
Adding to the comfort of the day are dew points that aren’t
too low or too high, generally hanging in the low-mid 40s.
Visibility has been somewhat limited today thanks to haziness
in the air. We’ve only been able to see around 40 miles most of
the day.
Not much of a breeze to speak of either today with wind speeds
only averaging around 9mph. The peak gust so far today is 20mph,
which occurred early this morning.
November has been a dry month thus far with the first 9 days
not even registering a trace of rain. After the past 4 consecutive
months have had above normal rainfall, this is a rather nice
reprieve. Looks like the dry weather will continue at least
another day or two.
The high so far today is 69F, 17 degrees above the normal max of
52F. The low since midnight is 45F, 9 degrees above the normal low
of 36F.
PRELIMINARY STATS FOR OCTOBER 2021
TEMPERATURE, Deg. F
Avg. Max. 64.1 [+3.1]
Avg. Min. 49.4 [+5.4]
Mean 56.9 [+4.3]
24-hour corrected mean: 56.3
Max. for month: 75F on the 13th
Min. for month: 37F on the 24th and 29th
HEATING DEGREE DAYS
Total heating units: 253 [-141]
Total for the season: 327 [-185]
Total for last season: 452
COOLING DEGREE DAYS
Total cooling units: 3 [-4]
Total for the season: 717 [+40]
Total for last season: 831
PRECIPITATION, Inches
Total: 7.87 [+2.38]
Greatest in 24 hrs: 2.23 inches on the 26th-27th
WIND, mph
Avg. uncorrected wind speed: 10.9 mph
Avg. corrected wind speed: 11.4 mph
Prevailing wind direction: WNW [10%]
Peak gust and direction: 66 NNE on the 27th
SUNSHINE:
Campbell-Stokes card minutes: 10494 minutes of a possible 19824 or 53%
Astronomical total minutes: 10865 minutes of a possible 20522 or 53%
Today’s Observations:
7 A.M.
Weather: Clear
Temperature: 46F; Dew Point: 38F; Relative Humidity: 73%
Wind: W @ 9 kts
Sea-level pressure: 1018.8 mb; 30.09 in. Hg: falling then rising
Visibility: 50 miles
6-hr Max temp: 49F
6-hr Min temp: 45F
24-hr Precip: 0.00 ins.
BHO SA 1155 CLR 50 188/46/38/2609/009/ 8/000 53003 10049 20045
10 A.M.
Weather: Clear, cirrus distant W-NW
Temperature: 58F; Dew Point: 40F; Relative Humidity: 50%
Wind: WSW @ 6 kts
Sea-level pressure: 1018.4 mb; 30.07 in Hg; rising, then falling
Visibility: 40 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 40 184/58/40/2506/007/ FEW CI DSNT W-NW/ 8/001 58004
1 P.M.
Weather: Clear
Temperature: 67F, Dew point: 45F; Relative Humidity: 45%
Wind: W @ 3 kts, wind light and variable
Sea-level pressure: 1016.2 mb; 30.01 in Hg; falling, then more slowly
Visibility: 40 miles, hazy
6-hr Max temp: 69F
6-hr Min temp: 46F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 40 162/67/45/2603/001/ WBD L/V/ HAZY/ 8/000 56022 10069 20046
SUMMARY FOR MONDAY, NOVEMBER 8, 2021
TEMPERATURE (DEGREES F)
MAX…….60 NORMAL…..53
MIN…….38 NORMAL…..36
MEAN……49 NORMAL…..45
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………… +4
TOTAL DEPARTURE FOR THE MONTH……………………… -7 [-1.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………16 DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE MONTH…………..160 DEPARTURE……. +5
TOTAL HEATING UNITS FOR THE SEASON………….487 DEPARTURE……-180
TOTAL HEATING UNITS LAST SEASON TO DATE……..563 DEPARTURE…… -76
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….20 N @ 6:20 A.M.
AEROVANE……………….18 N @ 6:20 A.M.
VECTOR #2 (Instantaneous)..20 @ 6:20 A.M.
DAVIS #2 ………………17 N @ 6:16 A.M.
RMY #2 (Instantaneous)…..19 NNE @ 7:25 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………………16 N @ 6:22 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16 @ 7:15 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………15 NNE @ 7:15 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 NNE @ 7:15 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……. 8.6 NNE [206 total miles]
VECTOR #2…………….. 9.5
DAVIS #2……………… 9.1 NE
RMY #2……………….. 9.4 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…..-0.14
TOTAL PRECIPITATION FOR THE MONTH………….0.00 DEPARTURE…..-1.17
TOTAL PRECIPITATION FOR THE YEAR………….54.85 DEPARTURE…..+9.78
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0 DEPARTURE…… 0.0
TOTAL SNOWFALL FOR THE MONTH……………….0.0 DEPARTURE……-0.3
TOTAL SNOWFALL FOR THE SEASON (2021-2022)……0.0 DEPARTURE……-1.0
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
10/01 64/44/54/-4/0.00/583/83 20 WNW AERO 20 WNW RMY N/A
10/02 73/47/60/+2/0.00/567/81 24 WSW AERO 23 WSW RMY N/A
10/03 65/55/60/+3/0.09/070/10 19 E AERO 19 E RMY N/A
10/04 59/51/55/-2/1.69/000/00 30 E AERO 30 E RMY N/A
10/05 58/50/54/-3/0.30/000/00 22 NNE AERO 23 NE RMY N/A
10/06 69/50/60/+4/0.00/407/59 15 N AERO 16 N RMY N/A
10/07 73/55/64/+8/0.00/550/80 15 WSW AERO 15 W RMY N/A
10/08 69/55/62/+7/T/616/90 24 ENE AERO 23 ENE RMY N/A
10/09 62/54/58/+3/0.01/273/40 23 E AERO 23 E RMY N/A
10/10 62/54/58/+3/T/000/00 22 E AERO 21 E RMY N/A
10/11 67/56/62/+8/0.01/371/55 20 NE AERO 21 NE RMY N/A
10/12 72/54/63/+9/0.00/612/91 15 SW AERO 15 SW RMY N/A
10/13 75/55/65/+11/0.00/630/94 18 SW AERO 18 SW RMY N/A
10/14 73/56/65/+12/0.00/614/92 19 N AERO 20 N RMY N/A
10/15 74/55/67/+14/0.00/452/68 24 S AERO 24 SSW RMY N/A
10/16 73/59/66/+14/0.06/351/53 43 S AERO 50 S RMY 44
10/17 62/47/55/+3/0.25/580/88 32 WNW AERO 31 WNW RMY 31
10/18 60/42/51/-1/0.01/544/83 31 NW AERO 32 NW RMY 33
10/19 59/40/50/-1/0.00/653/100 35 WNW AERO 37 W RMY 38
10/20 70/49/60/+9/0.00/560/86 23 W AERO 23 W RMY 23
10/21 74/56/65/+14/0.00/473/73 30 SSW AERO 32 S RMY 32
10/22 71/51/61/+11/0.00/535/83 27 S AERO 30 S RMY 29
10/23 60/44/52/+2/0.00/475/74 24 NW AERO 22 NW RMY 24
10/24 57/37/47/-3/0.01/589/92 25 NNW AERO 25 NNW RMY 25
10/25 56/47/52/+3/0.63/000/00 29 NE AERO 30 NE RMY 32
10/26 61/47/54/+5/2.23/000/00 49 NNE AERO 56 N RMY 54
10/27 48/44/46/-3/0.87/000/00 66 NNE AERO 74 NNE RMY 65
10/28 48/39/44/-4/0.00/000/00 26 NNE AERO 26 NNE RMY 28
10/29 49/37/43/-5/0.00/000/00 25 ENE AERO 24 ENE RMY 24
10/30 59/49/54/+7/1.02/000/00 33 E AERO 32 E RMY 33
10/31 64/51/58/+11/0.69/360/58 33 WNW AERO 35 SW RMY 35
RECORDS FOR THE MONTH:
Peak Gust of 66 MPH NNE on the 27th, beating the old record of
54 WNW, NE set in 1968 and 2018.
Daily Precipitation of 2.23 inches on the 26th, beating the old
record of 1.57 inches in 1898.
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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
11/01 59/41/50/+3/0.00/0.0/…/.. 38 WNW AERO 39 WNW RMY 39
11/02 56/40/48/+1/0.00/0.0/…/.. 25 SW AERO 25 SW RMY 26
11/03 51/35/43/-3/0.00/0.0/…/.. 28 W AERO 25 W RMY 27
11/04 49/31/40/-6/0.00/0.0/…/.. 17 NNE AERO 17 NNW RMY 16
11/05 49/32/41/-5/0.00/0.0/…/.. 25 NW AERO 24 NW RMY 24
11/06 51/34/43/-2/0.00/0.0/…/.. 18 SSW AERO 17 SW RMY 19
11/07 55/37/46/+1/0.00/0.0/…/.. 17 W AERO 17 W RMY 16
11/08 60/38/49/+4/0.00/0.0/…/.. 20 N AERO 18 N RMY 19
11/09 The low since midnight is 45F, the daily normal low is 36F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR NOVEMBER 9
HIGH 74 IN 2020
LOW 17 IN 1971
PRECIP 1.37 INCHES IN 1969
SNOWFALL 0.5 IN 1892
PEAK GUST 73e S IN 1943
RECORDS FOR NOVEMBER 10
HIGH 75 IN 1931
LOW 20 IN 2004
PRECIP 2.11 INCHES IN 1888
SNOWFALL 2.2 IN 1987
PEAK GUST 83e S IN 1942
TODAY’S REPORT PREPARED BY: Matt Douglas
