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

SUNDAY, NOVEMBER 1, 2020
ALL TIMES ARE IN EASTERN STANDARD TIME

CHILLY AND OVERCAST WITH DECENT VISIBILITY....

Today was mostly cloudy with a peak visibility of 65 miles,
meaning Mount Monadnock in southern New Hampshire can just 
barely be seen by the observer. Fall is definitely moving into
winter, as temperatures hold in the mid 40's all day. Wind is
southerly, with an average speed of 10 mph and a peak of 18 mph.
Pressure is on a steady drop (by about 9 millibars since 7 A.M.),
no doubt a contribution to the increase in low-level cloud cover.

The high so far today is 47F, which is 8 degrees below the
daily normal maximum of 55F. The low since midnight is 36F,
which is 2 degrees below the daily normal minimum of 38F.


Today's Observations:

7 A.M.
Weather: Scattered stratocumulus, broken altocumulus, 
broken cirrocumulus and cirrostratus
Temperature: 42F; Dew Point: 35F; Relative Humidity: 76%
Wind: S at 9 kts
Sea-level pressure: 30.22 ins. Hg: falling steadily
Visibility: 45 miles 
6-hr Max temp: 42F
6-hr Min temp: 36F
24-hr Precip: 0.00 ins.
24-hr Snow: 0.0 ins.
Snow Depth: 3 ins.
BHO SA 1155 30 SCT 60 BKN 250 BKN 45 234/42/35/1809/022/ 8/879 4/003 
58027 10042 20036

10 A.M.
Weather: Overcast stratocumulus
Temperature: 43F; Dew Point: 33F; Relative Humidity: 67%
Wind: SW at 8 kts
Sea-level pressure: 30.14 ins. Hg: falling steadily
Visibility: 65 miles 
3-hr Precip: 0.00 ins.
3-hr Snow: 0.0 ins
BHO SA 1455 40 OVC 65 203/43/33/2208/014/ 8/8// 58031

1 P.M.
Weather: Broken stratocumulus and altostratus
Temperature: 46F; Dew Point: 39F; Relative Humidity: 76%
Wind: S at 10 kts
Sea-level pressure: 29.97 ins. Hg: falling, then falling more rapidly
Visibility: 45 miles
6-hr Max temp: 47F
6-hr Min temp: 41F
6-hr Precip: 0.00 ins.
6-hr Snow: 0.0 ins.
Snow Depth: 3 ins.
BHO SA 1755 40 BKN 110 OVC 45 149/46/39/1910/997/ 8/87/ 4/003 58054 
10047 20041


SUMMARY FOR SATURDAY, OCTOBER 31, 2020 

TEMPERATURE (DEGREES F)
MAX.....39   NORMAL.....55
MIN.....24   NORMAL.....38
MEAN....32   NORMAL.....47

DEPARTURE FROM 30-YEAR NORMAL................-15
TOTAL DEPARTURE FOR THE MONTH................+61 [+5.9 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY.............33  DEPARTURE.....+15
TOTAL HEATING UNITS FOR THE MONTH............354  DEPARTURE.....-67
TOTAL HEATING UNITS FOR THE SEASON...........452  DEPARTURE....-111
TOTAL HEATING UNITS LAST SEASON TO DATE......440  DEPARTURE.....+12

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY............. 0  DEPARTURE...... 0                   
TOTAL COOLING UNITS FOR THE MONTH............. 1  DEPARTURE..... -4
TOTAL COOLING UNITS FOR THE SEASON...........831  DEPARTURE....+229
TOTAL COOLING UNITS LAST SEASON TO DATE......682  DEPARTURE....+149

PEAK WIND GUST FOR YESTERDAY (MPH) 
                   420C/Official...............18 SSE AT  10:52 P.M.  
                   AEROVANE (south tower)......20 SSE AT   9:43 P.M. 
                   ASOS........................19 NNW AT   3:09 A.M
                   DAVIS #1....................19 SSE AT  10:40 P.M
                   DAVIS #2 (south tower)......19 SE  AT  10:46 P.M
                   VECTOR......................19     
                   RMY.........................17
                   MERLIN......................17

FASTEST MILE FOR YESTERDAY.....................14 SSE AT 11:12 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE..................14 S   AT  7:14 P.M
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE..............15 SSE AT 10:52 P.M
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE..............16 SE  AT 11:13 P.M
AVERAGE WIND SPEED AND DIRECTION..............8.3 NNW [199 total miles]        
                   ASOS.......................9.0
                   DAVIS #1...................8.5 WNW   [295 deg.]
                   DAVIS #2...................8.9 WNW   [299 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE....-0.16
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........6.75  DEPARTURE....+2.06
                         ASOS..............6.74
TOTAL PRECIPITATION FOR THE YEAR..........41.17  DEPARTURE....-2.60
                         ASOS.............41.95


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  75/56/66/+9/0.00/591/84             28 SW   AERO 28 SW   RMY N/A
10/02  63/49/56/-1/0.02/203/29             20 NW   AERO 21 NW   RMY 20 
10/03  65/45/55/-1/0.00/676/97             19 WNW  AERO 19 WNW  RMY 19
10/04  65/45/55/-1/0.00/659/95             17 ESE  AERO 18 ESE  RMY 18
10/05  62/52/57/+1/0.00/277/40             17 ENE  AERO 17 ENE  RMY N/A
10/06  69/51/60/+5/0.00/503/73             28 S    AERO 28 S    RMY 29
10/07  73/50/62/+7/0.14/316/46             76 W    AERO 74 W    RMY 70  TSTM
10/08  61/42/52/-2/0.00/676/99             41 W    AERO 41 W    RMY N/A
10/09  60/37/49/-5/0.00/646/95             25 SSW  AERO 28 SSW  RMY N/A
10/10  75/52/64/+10/0.00/549/81            40 SSW  AERO 40 SSW  RMY 38
10/11  64/47/56/+3/0.00/574/85             32 NNW  AERO 35 NNW  RMY N/A
10/12  52/48/50/-3/T/000/00                28 E    AERO 27 E    RMY N/A
10/13  57/49/53/0/1.74/000/00              32 E    AERO 33 E    RMY N/A
10/14  67/47/57/+5/0.00/.../..             23 WNW  AERO 25 WNW  RMY N/A
10/15  71/50/61/+9/0.00/.../..             43 S    AERO 46 S    RMY 42
10/16  68/48/58/+7/1.00/.../..             28 S    AERO 30 S    RMY N/A
10/17  56/39/48/-3/1.24/.../..             35 WNW  AERO 40 WNW  RMY 37
10/18  60/46/53/+2/0.00/.../..             20 ESE  AERO 21 ESE  RMY 20
10/19  61/46/54/+4/0.00/.../..             16 ESE  AERO 16 SSE  RMY N/A
10/20  66/49/58/+8/0.00/.../..             22 S    AERO 22 S    RMY 22
10/21  71/56/64/+14/0.06/.../..            26 SSW  AERO 26 SSW  RMY 26
10/22  70/54/62/+13/0.00/.../..            18 SSW  AERO 17 SSW  RMY N/A
10/23  68/52/60/+11/0.00/.../..            18 ESE  AERO 18 ESE  RMY 18
10/24  68/42/55/+6/0.00/.../..             32 NNW  AERO 32 NNW  RMY 32
10/25  50/40/45/-4/0.00/.../..             19 NNW  AERO 19 NNW  RMY N/A
10/26  52/43/48/0/0.02/.../..              20 E    AERO 18 ESE  RMY 20
10/27  52/43/48/0/0.00/.../..              22 NNW  AERO 22 NNW  RMY N/A
10/28  49/42/46/-2/..../.../..             18 W    AERO 18 W    RMY 18
10/29  46/41/44/-3/.../.../..              39 NE   AERO 38 NE   RMY 38
10/30  41/26/34/-13/.../.../..             37 NNE  AERO 44 NNE  RMY N/A
10/31  39/24/32/-15/..../.../..            18 SSE  AERO 20 SSE  RMY 17

11/01 The low since midnight is 36F, 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 1
HIGH 75 IN 2003
LOW 22 IN 1913,1923
PRECIP 2.93 INCHES IN 1985
SNOWFALL TRACE IN 1906,1951
PEAK GUST 78 ESE IN 1997

RECORDS FOR NOVEMBER 2
HIGH 81 IN 1950
LOW 22 IN 1965
PRECIP 1.67 INCHES IN 1970
SNOWFALL 1.8 IN 2014
PEAK GUST 63 WSW IN 1973

TODAY'S REPORT PREPARED BY: Benjamin Turner