Friday, November 1, 2019

| November 1, 2019 | Reply

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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, NOVEMBER 1, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

MORNING RAIN AND CLOUDS GIVE WAY TO A BRIGHT, SEASONABLE
YET BLUSTERY AUTUMN DAY….

We measured 0.32 inches at 7 A.M. from last night’s rainfall. Quick
clearing was accompanied by strong cold air advection from the west.
The highest wind so far today was 65 MPH early this morning.
Visibility has been stellar here, holding at 80 miles. After this
week’s stretch of clouds and rain, the sunshine is a welcomed sight.
October rainfall amounted to 6.92 inches, which is 2.23 inches above
the normal total of 4.69 inches.

The high so far today is 68F, 13 degrees above the
daily normal maximum of 55F. The low since midnight
is 49F, 11 degrees above the normal minimum of 38F.

Today’s Observations:

7 A.M.
Weather: Few Cumulus & Stratocumulus, Scattered Altostratus,
Broken Cirrus
Temperature: 50F; Dew Point: 40F; Wind: W at 16G29
Peak Wind: 39 MPH (34 kts) W at 6:33 A.M.
Sea-level pressure: 29.71 ins. Hg, rising then rising more rapidly
Visibility: 80 miles
6-hr Max temp: 67F
6-hr Min temp: 50F
24-hr Precip: 0.32 ins.
BHO SA 1155 30 SCT 90 SCT E250 BKN 80 062/50/40/26016G29/971/
PK WND 2534/33/ 8/874 70032 53063 10067 20050

10 A.M.
Weather: Few Cumulus and Cirrocumulus
Temperature: 50F; Dew Point: 31F; Wind: W at 20G36 kts,
Peak wind: 53 MPH (46 kts) S at 8:22 A.M.
Sea-level pressure: 29.84 ins. Hg, rising steadily
Visibility: 80 miles
BHO SA 1455 CLR 80 023/50/31/2720G36/984/
FEW CU/CI ALQDS PK WND 2746/1322/ 8/105 52039

1 P.M.
Weather: Few Cumulus & Stratocumulus
Temperature: 55F; Dew Point: 27F; Wind: W at 18G33 kts,
Peak wind: 43 MPH (37 kts) W at 12:33 P.M.
Sea-level pressure: 29.90 ins. Hg, rising then rising more rapidly
Visibility: 80 miles
6-hr Max temp: 55F
6-hr Min temp: 48F
BHO SA 1755 CLR 80 127/55/27/27018G33/990/
FEW CU/SC W-NW PK WND 2737/33/ 8/800 53031 10055 20048

SUMMARY FOR THURSDAY, OCTOBER 31, 2019

TEMPERATURE (DEGREES F)
MAX…..68   NORMAL…..55
MIN…..58   NORMAL…..38
MEAN….63   NORMAL…..47

DEPARTURE FROM 30-YEAR NORMAL………………..+16
TOTAL DEPARTURE FOR THE MONTH………………..+69 [+2.0 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………….2  DEPARTURE……..-16
TOTAL HEATING UNITS FOR THE MONTH…………..347  DEPARTURE……..-74
TOTAL HEATING UNITS FOR THE SEASON………….440  DEPARTURE……..-123
TOTAL HEATING UNITS LAST SEASON TO DATE……..543  DEPARTURE……..-103

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE……….0
TOTAL COOLING UNITS FOR THE MONTH…………….2  DEPARTURE………-3
TOTAL COOLING UNITS FOR THE SEASON………….682  DEPARTURE……..+80
TOTAL COOLING UNITS LAST SEASON TO DATE……..874  DEPARTURE…….-192

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..61 W   AT 8:50 P.M.
AERO…………………….MISSING
ASOS…………………….64 W   AT 8:50 P.M.
DAVIS……………………66 W   AT 9:29 P.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………….50 W   AT 11:02 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….47 W   AT 11:01 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………46 W   AT 9:04 P.M.
AVERAGE WIND SPEED AND DIRECTION…………….25.9 S
ASOS…………………….25.6
DAVIS……………………23.5 SSW [193 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.32  DEPARTURE……+0.16
ASOS…………..0.35
TOTAL PRECIPITATION FOR THE MONTH……….6.92  DEPARTURE……+2.23
ASOS…………..7.24
TOTAL PRECIPITATION FOR THE YEAR……….45.66  DEPARTURE……+1.68
ASOS………….45.81

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  67/52/60/+3/0.06/…/..               28 SW  AERO 25 SSW RMY 29
10/02  74/49/62/+5/0.42/…/..               30 ENE AERO 25 ENE RMY 28
10/03  51/46/49/-7/…./…/..               28 ENE AERO 26 ENE RMY N/A
10/04  59/40/50/-6/…./…/..               38 NNW AERO 38 NNW RMY 38
10/05  58/35/47/-9/0.00/…/..               21 N   AERO 18 SSW RMY N/A
10/06  65/44/55/0/0.00/…/..                36 SSW AERO 35 SSW RMY N/A
10/07  77/57/67/+12/0.12/…/..              47 SSW AERO 46 SSW RMY 49
10/08  60/52/56/+2/T/…/..                  22 NE  AERO 18 NW  RMY N/A
10/09  55/49/52/-2/…./…/..               43 NE  AERO 37 NE  RMY 44
10/10  54/47/51/-3/…./…/..               41 NE  AERO 37 NE  RMY 42
10/11  52/48/50/-3/…./000/00               41 NE  AERO 39 NE  RMY 41
10/12  52/49/51/-2/…./…/..               39 NE  AERO 37 NE  RMY N/A
10/13  66/48/57/+4/…./…/..               18 WNW AERO 17 WNW RMY 18
10/14  67/51/59/+7/…./…/..               18 WSW AERO 17 WSW RMY N/A
10/15  61/43/52/0/…./…/..                18 NNW AERO 17 NNW RMY N/A
10/16  61/45/53/+2/…./…/..               58 ESE AERO 58 ESE RMY N/A
10/17  60/46/53/+2/…./…/..               61 E   AERO 63 E   RMY N/A
10/18  57/41/49/-2/…./…/..               29 WNW AERO 32 W   RMY 32
10/19  58/36/47/-3/…./…/..               18 NW  AERO 18 NW  RMY 19
10/20  60/43/52/+2/T/…/..                  14 NE  AERO 16 NE  RMY N/A
10/21  59/49/54/+4/0.01/…/..               25 E   AERO 21 NE  RMY 23
10/22  58/47/53/+4/…./…/..               29 E   AERO 28 E   RMY 23
10/23  65/48/57/+8/…./…/..               35 W   AERO 35 W   RMY 36
10/24  67/43/55/+6/…/…/..                28 SSW AERO 28 SSW RMY 29
10/25  64/47/56/+7/…/…/..                20 WSW AERO 21 SW  RMY N/A
10/26  58/45/52/+4/…/…/..                20 N   AERO 18 N   RMY N/A
10/27  52/45/49/+1/1.43/…/..               37 ESE AERO 35 ESE RMY 37
10/28  53/46/50/+2/…/…/..                24 NNW AERO 24 NNW RMY N/A
10/29  54/47/51/+4/…./…/..               15 ESE AERO 15 ESE RMY 14
10/30  65/51/58/+11/…./…/..              24 S   AERO M  M   RMY N/A
10/31  68/58/63/+16/…./…/..              61 S   AERO M  M   RMY

The low since midnight is 48F, normal daily minimum 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: Andrew Swanson

Category: Daily Discussions

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