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

DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, NOVEMBER 15, 2016  
ALL TIMES ARE IN EASTERN STANDARD TIME

LIGHT RAIN BEGINS MID-MORNING

Light rain began shortly after 10:00AM and measured 0.04 in. at the 1:00PM
observation, almost doubling our monthly total in three hours.  Visibility
dropped to just 2 1/2 miles as fog moved in and ceilings lowered.
Temperatures were steady throughout the morning reaching a max of 51F, but
the temperature began decreasing once the rain arrived.

7 A.M.
Weather: Broken altocumulus, overcast altostratus
Temperature: 50F; Dew Point: 28F; Wind: N at 8 kts
Sea-level pressure: 30.01 ins. Hg, falling, then steady
Visibility: 30 miles, except 70 miles W-NNW
6-hr Max temp: 50F
6-hr Min temp: 46F
24-hr precip: 0.00 in.
BHO SA 1155 E69 BKN 120 OVC 30 161/50/28/0108/001/ VSBY W-NNW 70/
8/07/ 56005 10050 20046

10 A.M.
Weather: Broken stratocumulus, overcast stratus
Temperature: 50F; Dew Point: 35F; Wind: ENE at 9 kts
Sea-level pressure: 30.01 ins. Hg, rising then falling
Visibility: 30 miles, except 40 miles W, distant fog in all directions
BHO SA 1455 E49 BKN 59 OVC 30 161/50/35/0609/001/ VSBY W 40 DSNT 
FG ALQDS/ 8/5// 58000

1 P.M.
Weather: Light rain, fog, overcast nimbostratus
Temperature: 48F; Dew Point: 45F; Wind: ENE at 14G21 kts
Sea-level pressure: 29.91 ins. Hg, falling, then more slowly
Visibility: 2 1/2 miles
6-hr Max. temp: 51F
6-hr Min. temp: 48F
6-hr precip: 0.04 in.
BHO SA 1755 E29 OVC 2 1/2R-F 130/48/45/0614G21/991/ 8/6// 56031
MANUAL 6004/ ASOS 60003 10051 20048

SUMMARY FOR MONDAY, NOVEMBER 14, 2016
 
TEMPERATURE (DEGREES F)
MAX.....66   NORMAL.....51
MIN.....44   NORMAL.....34
MEAN....55   NORMAL.....42

DEPARTURE FROM 30-YEAR NORMAL.......................+13
TOTAL DEPARTURE FOR THE MONTH.......................+43 [+2.9 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............10   DEPARTURE.........-13
TOTAL HEATING UNITS FOR THE MONTH.............246   DEPARTURE.........-43
TOTAL HEATING UNITS FOR THE SEASON............667   DEPARTURE........-185
TOTAL HEATING UNITS LAST SEASON TO DATE.......632   DIFFERENCE........+35

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................24 WSW AT  6:57 A.M. 
                   ASOS........................24 WSW AT  6:56 A.M.
                   DAVIS.......................23 SW  AT  5:17 A.M. RMY 25
FASTEST MILE FOR YESTERDAY.....................19 WSW AT  6:51 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE..................18  W  AT  7:00 A.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE.................18 WSW AT  6:53 A.M.   
AVERAGE WIND SPEED AND DIRECTION.............11.6 SW
                   ASOS......................11.4
                   DAVIS.....................10.4 SW [230 Deg.]
* Last of several occurrences 

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..........0.05  DEPARTURE......-2.15
                         ASOS..............0.07
TOTAL PRECIPITATION FOR THE YEAR..........34.41  DEPARTURE.....-11.56
                         ASOS.............34.77


PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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

11/1  55/29/42/-4/0.00/600/97           22 SSE AERO 22 S   RMY N/A
11/2  69/45/57/+11/0.00/425/69          24 SSW AERO 24 S   RMY 26
11/3  65/49/57/+11/0.01/025/04          38 W   AERO 41 W   RMY 38
11/4  56/35/46/+1/0.00/587/96           26 NW  AERO 26 NW  RMY 30
11/5  55/32/44/-1/0.00/250/41           24 W   AERO 23 W   RMY 24
11/6  49/39/44/-1/0.04/091/15           23 N   AERO 23 N   RMY 23
11/7  46/33/40/-5/0.00/423/70           21 N   AERO 21 N   RMY 20
11/8  64/36/50/+6/0.00/590/98           17 W   AERO 15 SSW RMY N/A
11/9  60/43/52/+8/T/090/15              22 NNW AERO 22 NW  RMY N/A
11/10 52/34/43/-1/0.00/507/85           28 SSW AERO 30 SSW RMY 31
11/11 59/35/47/+4/0.00/565/95           39 NW  AERO 44 NW  RMY 45
11/12 47/31/39/-4/0.00/.../..           38 NW  AERO 44 NW  RMY 23    
11/13 59/37/48/+5/0.00/.../..           23 W   AERO 22 W   RMY N/A
11/14 66/44/55/+13/0.00/.../..          24 WSW AERO 22 WSW RMY 25

11/15 Low temp since midnight is 46F; normal low is now 34F

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

RECORDS FOR NOVEMBER 15
HIGH 74 IN 1993
LOW 15 IN 1933
PRECIP 1.66 INCHES IN 1981
SNOWFALL 4.0 IN 1967
PEAK GUST 65 SSE IN 2008 

RECORDS FOR NOVEMBER 16
HIGH 73 IN 1927
LOW 8 IN 1933
PRECIP 2.25 INCHES IN 1981
SNOWFALL 2.0 IN 1913
PEAK GUST 78 S IN 1989
 
TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle