Wednesday, November 3, 2021

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

WEDNESDAY, NOVEMBER 3, 2021
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0621E
SUNSET:  1634E

COOLER WITH GREAT VISIBILITY AND PARTLY CLOUDY SKIES….

Today we observed 80 miles for the average visibility and cool,
fair weather. Wind is westerly at an average speed of 10 mph and
a max gust of 22 mph occurring around noon.

Cloud cover increased slightly from almost clear skies this morning.

After a rainy end to October, the annual rain total is 54.85 inches,
10.65 inches over the normal going into the last two months of the
year!  

The high so far today is 51F, 4 degrees below the normal max of
55F. The low since midnight is 35F, 3 degrees below the normal low
of 38F.  


Today’s Observations:

7 A.M.
Weather: Clear, few distant cumulus, few distant altocumulus
east to southeast, few distant cirrus east-south
Temperature: 35F; Dew Point: 32F; Relative Humidity: 87%
Wind: W @ 9 kts
Sea-level pressure: 1021.4 mb; 30.16 in. Hg: rising unsteadily
Visibility: 70 miles
6-hr Max temp: 43F
6-hr Min temp: 35F
24-hr Precip: 0.00 ins.
BHO SA 1155 CLR 70 214/35/32/2809/016/ FEW CU DSNT ALQDS FEW AC DSNT
E-SE FEW CI DSNT E-S/ 8/839 52009 10043 20035

10 A.M.
Weather: Clear, few distant cumulus, few altocumulus distant to the
east, few cirrus to the south and northwest-west
Temperature: 44F; Dew Point: 39F; Relative Humidity: 61%
Wind: W @ 5 kts, wind light  
Sea-level pressure: 1021.9 mb; 30.18 in Hg; rising, then more slowly
Visibility: 80 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 80 219/44/39/2705/018/ FEW CU DSNT ALQDS FEW AC DSNT
E FEW CI S AND NW-N WND LGT/ 8/231 51005

1 P.M.
Weather: Scattered cumulus
Temperature: 49F, Dew point: 30F; Relative Humidity: 48%
Wind: NW @ 9G19 kts
Sea-level pressure: 1020.8 mb; 30.14 in Hg; rising then falling
Visibility: 80 miles
6-hr Max temp: 51F
6-hr Min temp: 35F
6-hr Precip: 0.00 ins.
BHO SA 1755 46 SCT 80 208/49/30/3109G19/014/ 8/200 55011 10051 20035

SUMMARY FOR TUESDAY, NOVEMBER 2, 2021

TEMPERATURE (DEGREES F)
MAX…….56     NORMAL…..55
MIN…….40     NORMAL…..38
MEAN……48     NORMAL…..47

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………… +1
TOTAL DEPARTURE FOR THE MONTH……………………… +4 [+1.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………17  DEPARTURE……. -2
TOTAL HEATING UNITS FOR THE MONTH………….. 32  DEPARTURE……. -5
TOTAL HEATING UNITS FOR THE SEASON………….359  DEPARTURE……-189
TOTAL HEATING UNITS LAST SEASON TO DATE……..503  DEPARTURE……-144

PEAK WIND GUST (MPH):
                     Official (1-Sec avg)…….25 SW  @ 12:49 P.M.
                     AEROVANE……………….25 SW  @ 12:49 P.M.
                     VECTOR #2 (Instantaneous)..26     @ 12:49 P.M.
                     DAVIS #2 ………………25 SW  @ 12:04 P.M.
                     RMY #2 (Instantaneous)…..26 SW  @ 12:04 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………………16 SW  @ 12:54 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18     @ 12:53 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………19 WSW @ 12:53 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..18 WNW @ 12:53 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……. 8.9 WSW  [214 total miles]
                     VECTOR #2…………….. 9.8
                     DAVIS #2……………… 9.7 W
                     RMY #2……………….. 9.7 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….-0.15
TOTAL PRECIPITATION FOR THE MONTH………….0.00  DEPARTURE….-0.30
TOTAL PRECIPITATION FOR THE YEAR………….54.85  DEPARTURE…+10.65

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH……………….0.0  DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE SEASON (2021-2022)……0.0  DEPARTURE……-0.8

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   The low since midnight is 35F, the daily normal low is 38F

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)

RECORDS FOR NOVEMBER 3
HIGH 75 IN 1990
LOW 21 IN 1891
PRECIP 1.92 INCHES IN 1951
SNOWFALL 0.1 IN 1951
PEAK GUST 96e SSE IN 1951

RECORDS FOR NOVEMBER 4
HIGH 77 IN 1987
LOW 22 IN 1891
PRECIP 3.27 INCHES IN 1910
SNOWFALL 6.4 IN 1945
PEAK GUST 73 WNW IN 1965

TODAY’S REPORT PREPARED BY: Augustin Busschaert/Ben Turner