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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, OCTOBER 17, 2016  
ALL TIMES ARE IN EASTERN STANDARD TIME

WARMER THAN AVERAGE TEMPERATURES TODAY,
EVEN HIGHER TEMPERATURES EXPECTED TOMORROW

Overnight temperatures reached a low of only 58F around 6:30AM EST this
morning and quickly increased from there.  The max. recorded at the
1:00PM observation was 76F, 16F above normal.  A warm front is expected
to bring even higher temperatures Tuesday and Wednesday.

While skies were partly cloudy for most of the day, visibility was
limited to 20-40 miles due to thin morning fog and distant haze.  Winds
shifted west shortly before the 7:00AM observation this morning and
remained light all day.


7 A.M. 
Weather: Scattered altocumulus, few cirrus in all directions
Temperature: 60F; Dew Point: 55F; Wind: W at 9 kts
Sea-level pressure: 29.92 ins. Hg, rising, then less quickly
Visibility: 20 miles, distant fog
6-hr Max temp: 60F
6-hr Min temp: 58F
24-hr precip: 0.00 in.
BHO SA 1155 120 SCT 20 133/60/55/2809/992/ FEW CI ALQDS DSNT FG/
8/061 51009 10060 20058

10 A.M.
Weather: Scattered cumulus
Temperature: 70F; Dew Point: 58F; Wind: WNW at 4 kts,
Wind Speed: Light
Sea-level pressure: 29.93 ins. Hg, rising then steady
Visibility: 40 miles, distant haze
BHO SA 1455 34 SCT 40 137/70/58/2904/993/ DSNT HZ WND LGT/ 8/100 51004

1 P.M.
Weather: Scattered cumulus, scattered altocumulus
Temperature: 75F; Dew Point: 56F; Wind: W at 5 kts,
Wind Speed: Light
Sea-level pressure: 29.89 ins. Hg, falling, then more quickly
Visibility: 40 miles, distant haze
6-hr Max. temp: 76F
6-hr Min. temp: 60F
BHO SA 1755 34 SCT 110 SCT 40 121/75/56/2705/989/ DSNT HZ WND LGT/
8/160 58016 10076 20060


SUMMARY FOR SUNDAY, OCTOBER 16, 2016
 
TEMPERATURE (DEGREES F)
MAX.....68   NORMAL.....60
MIN.....46   NORMAL.....43
MEAN....57   NORMAL.....51

DEPARTURE FROM 30-YEAR NORMAL........................+6
TOTAL DEPARTURE FOR THE MONTH.......................+24 [+1.3 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY...............0   DEPARTURE...........0
TOTAL COOLING UNITS FOR THE MONTH...............0   DEPARTURE..........-5
TOTAL COOLING UNITS FOR THE SEASON............894   DEPARTURE........+292
TOTAL COOLING UNITS LAST SEASON TO DATE.......810   DIFFERENCE........+84 

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY...............8   DEPARTURE..........-6
TOTAL HEATING UNITS FOR THE MONTH.............148   DEPARTURE.........-30
TOTAL HEATING UNITS FOR THE SEASON............223   DEPARTURE.........-97
TOTAL HEATING UNITS LAST SEASON TO DATE.......205   DIFFERENCE........+18

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................28 SSW AT  6:25 P.M. 
                   ASOS........................30 SSW AT  6:25 P.M.  
                   DAVIS.......................21 SSW AT  7:57 A.M. RMY 30 
FASTEST MILE FOR YESTERDAY.....................21 SSW AT 11:11 A.M.     
MAXIMUM 2-MINUTE ASOS AVERAGE..................22 SSW AT 11:13 A.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE.................21 SSW AT 11:13 A.M.   
AVERAGE WIND SPEED AND DIRECTION.............16.0 SSW
                   ASOS......................16.1
                   DAVIS.....................14.9 SSW [210 Deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE......-0.15
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........3.30  DEPARTURE......+0.93
                         ASOS..............3.31
TOTAL PRECIPITATION FOR THE YEAR..........30.62  DEPARTURE.....-10.83
                         ASOS.............30.95 
 

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

10/1  57/52/55/-2/1.22/000/00                 33 NNE AERO  M  RMY 34
10/2  55/52/54/-3/0.19/.../..                 23 N   AERO  M  RMY N/A
10/3  69/53/61/+5/0.00/.../..                 21 ENE AERO  M  RMY 20
10/4  61/47/54/-2/T/.../..                    26 NE  AERO  M  RMY 27
10/5  61/44/53/-3/0.00/.../..                 22 NE  AERO  M  RMY 21
10/6  71/46/59/+4/0.00/.../..                 16 SW* AERO  M  RMY 15
10/7  75/54/65/+10/0.00/.../..                16 S   AERO  M  RMY 16
10/8  69/53/61/+7/0.00/.../..                 23 SSW AERO  M  RMY 23
10/9  63/44/54/0/1.89/.../..                  28 N   AERO  M  RMY 34
10/10 57/40/49/-5/0.00/.../..                 32 NW  AERO  M  RMY 32
10/11 62/39/51/-2/0.00/.../..                 17 N   AERO  M  RMY N/A
10/12 68/49/59/+6/0.00/.../..                 17 S   AERO  M  RMY 17
10/13 71/52/62/+9/T/.../..                    24 SSW AERO  M  RMY 28
10/14 58/41/50/-2/0.00/.../..                 26 NNW AERO  M  RMY 25
10/15 58/38/48/-4/0.00/.../..                 23 S   AERO  M  RMY 26
10/16 68/46/57/+6/0.00/.../..                 28 SSW AERO  M  RMY 30

10/17 Low temp since midnight is 58F; normal low is now 42F

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

RECORDS FOR OCTOBER 17
HIGH 86F IN 1947
LOW 25F IN 1886
PRECIP 1.87 INCHES IN 1989
SNOWFALL TRACE IN 1970
PEAK GUST 55 MPH NE IN 1964

RECORDS FOR OCTOBER 18
HIGH 82F IN 1908
LOW 26F IN 1939
PRECIP 2.79 INCHES IN 1975
SNOWFALL 3.0 INCHES IN 2009
PEAK GUST 66 MPH S IN 1967

TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle