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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, NOVEMBER 4, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

PLENTY OF SUNSHINE WITH VERY DRY AIR....

We're having another very nice day here at Blue Hill with plenty
of bright sunshine, a light breeze, and very dry air. Dew points 
have dropped into the low/mid 20s early this afternoon, bringing 
a chill to the air for sure.

As one would expect with crisp dry air, visibility is excellent
at 70 miles!

The high so far today is 52F, 3 degrees below the daily normal
maximum of 55F. The low since midnight is 33F, 4 degrees below the
normal minimum of 37F.


Today's Observations:

7 A.M.
Weather: Thin scattered Cirrus, few stratocumulus offshore distant ENE-ESE
Temperature: 34F; Dew Point: 28F; Wind: W at 8 kts
Sea-level pressure: 30.34 ins. Hg, rising, then more rapidly
Visibility: 70 miles
6-hr Max temp: 36F
6-hr Min temp: 33F
24-hr Precip: 0.00 ins.
BHO SA 1155 250 –SCT 70 274/34/28/2608/034/ FEW SC OFFSHR DSNT ENE-ESE/
8/401 53019 10036 20033 

10 A.M.
Weather: Clear, few Cirrus all quadrants
Temperature: 46F; Dew Point: 24F; Wind: NW at 5 kts,
Wind: Light 
Sea-level pressure: 30.37 ins. Hg, rising, then more slowly
Visibility: 70 miles
BHO SA 1455 CLR 70 286/46/24/3105/037/ FEW CI ALQDS K PLUME DSNT NNE
WND LGT/ 8/001 51012

1 P.M.
Weather: Thin scattered Cirrus 
Temperature: 52F; Dew Point: 22F; Wind: SW at 6 kts
Sea-level pressure: 30.33 ins. Hg, falling, then more rapidly
Visibility: 70 miles
6-hr Max temp: 52F
6-hr Min temp: 34F 
BHO SA 1755 250 –SCT 70 271/52/22/2106/033/ WND L/V/ 8/001 58015 10052 
20034 


SUMMARY FOR SUNDAY, NOVEMBER 3, 2019 

TEMPERATURE (DEGREES F)
MAX.....53   NORMAL.....54
MIN.....35   NORMAL.....37
MEAN....44   NORMAL.....46

DEPARTURE FROM 30-YEAR NORMAL....................-2
TOTAL DEPARTURE FOR THE MONTH....................-2 [-0.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY...............21  DEPARTURE.........+2
TOTAL HEATING UNITS FOR THE MONTH...............59  DEPARTURE.........+2
TOTAL HEATING UNITS FOR THE SEASON.............499  DEPARTURE.......-121
TOTAL HEATING UNITS LAST SEASON TO DATE........589  DEPARTURE........-90

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY................0  DEPARTURE..........0
TOTAL COOLING UNITS FOR THE MONTH................0  DEPARTURE..........0
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....................25 WSW AT  1:01 P.M.  
                   AERO.........................23 W   AT  2:37 P.M  
                   ASOS.........................25 W   AT  2:45 P.M.
                   DAVIS........................28 W   AT 12:59 P.M. RMY 26
FASTEST MILE FOR YESTERDAY......................18 W   AT  2:48 P.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE...................20 W   AT  2:46 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE..................21 W   AT  2:45 P.M.
AVERAGE WIND SPEED AND DIRECTION................11.5 W                   
                   ASOS.........................11.8 
                   DAVIS........................12.1 W [278 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..........0.12  DEPARTURE......-0.35
                         ASOS..............0.12
TOTAL PRECIPITATION FOR THE YEAR..........45.46  DEPARTURE......+1.21
                         ASOS.............45.81

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.......-0.1
TOTAL SNOWFALL FOR THE SEASON...............0.0  DEPARTURE.......-0.4


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/+3/0.06/028/04               28 SW  AERO 25 SSW RMY 29
10/02  74/49/62/+5/0.42/021/03               30 ENE AERO 25 ENE RMY 28
10/03  51/46/49/-7/..../000/00               28 ENE AERO 26 ENE RMY N/A
10/04  59/40/50/-6/..../397/57               38 NNW AERO 38 NNW RMY 38
10/05  58/35/47/-9/0.00/687/99               21 N   AERO 18 SSW RMY N/A
10/06  65/44/55/0/0.00/263/38                36 SSW AERO 35 SSW RMY N/A
10/07  77/57/67/+12/0.12/316/46              47 SSW AERO 46 SSW RMY 49
10/08  60/52/56/+2/T/000/00                  22 NE  AERO 18 NW  RMY N/A
10/09  55/49/52/-2/..../000/00               43 NE  AERO 37 NE  RMY 44
10/10  54/47/51/-3/..../000/00               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/..../000/00               39 NE  AERO 37 NE  RMY N/A
10/13  66/48/57/+4/..../570/85               18 WNW AERO 17 WNW RMY 18
10/14  67/51/59/+7/..../335/50               18 WSW AERO 17 WSW RMY N/A
10/15  61/43/52/0/..../653/98                18 NNW AERO 17 NNW RMY N/A
10/16  61/45/53/+2/..../305/46               58 ESE AERO 58 ESE RMY N/A
10/17  60/46/53/+2/..../086/13               61 E   AERO 63 E   RMY N/A
10/18  57/41/49/-2/..../099/15               29 WNW AERO 32 W   RMY 32
10/19  58/36/47/-3/..../648/99               18 NW  AERO 18 NW  RMY 19
10/20  60/43/52/+2/T/280/43                  14 NE  AERO 16 NE  RMY N/A
10/21  59/49/54/+4/0.01/591/91               25 E   AERO 21 NE  RMY 23
10/22  58/47/53/+4/..../078/12               29 E   AERO 28 E   RMY 23
10/23  65/48/57/+8/..../431/67               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 N/A

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

10/01  67/35/51/+5/..../0.0/.../..               67 S   AERO M  M RMY N/A
10/02  50/31/41/-5/0.00/0.0/.../..               17 WNW AERO 14 W RMY N/A
10/03  53/35/44/-2/0.00/0.0/.../..               25 WSW AERO 23 W RMY 26

10/04 The low since midnight is 33F, daily normal minimum is 37F

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

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

RECORDS FOR NOVEMBER 5
HIGH 76 IN 1994
LOW 18 IN 1908
PRECIP 4.26 INCHES IN 1955
SNOWFALL 1.5 IN 1892
PEAK GUST 69 W IN 2004

TODAY'S REPORT PREPARED BY: Matt Douglas