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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, OCTOBER 31, 2016  
ALL TIMES ARE IN EASTERN STANDARD TIME

OCTOBER WILL END ABOVE NORMAL FOR PRECIP,
SUNNY SKIES, BUT CHILLY TEMPS TODAY

Last evening's rain brought an additional 0.27 in. of precip, making
the monthly total now 7.04 in. and departure 2.51 in. above normal.
October is now only the second month in 2016 to end with above normal
precip; the other is February.

Today's clear skies and low dew points were due to high pressure building
from the east.  Winds have been gusting around 20 MPH out of the NW.
Temperatures continue to be below average with an overnight minimum of
37F and a max. by 1:00PM EST of 50F.


7 A.M. 
Weather: Few cumulus in all directions
Temperature: 38F; Dew Point: 33F; Wind: NW at 10G16 kts
Sea-level pressure: 30.07 ins. Hg, increasing steadily
Visibility: 50 miles, distant fog
6-hr Max temp: 42F
6-hr Min temp: 37F
24-hr precip: 0.27 in.
BHO SA 1155 CLR 50 182/38/33/3110G16/007/ FEW CU ALQDS DSNT FG/
8/100 53022 MANUAL 70027 ASOS 70025 10042 20037 

10 A.M.
Weather: Scattered cumulus
Temperature: 45F; Dew Point: 33F; Wind: NNW at 9G19 kts
Sea-level pressure: 30.11 ins. Hg, rising, then more quickly
Visibility: 70 miles
BHO SA 1455 34 SCT 70 196/45/33/3309G19/011/ 8/100 51014 

1 P.M.
Weather: Scattered cumulus, few cirrus SW-W
Temperature: 50F; Dew Point: 31F; Wind: NW at 12G17 kts
Sea-level pressure: 30.13 ins. Hg, rising then falling
Visibility: 70 miles
6-hr Max. temp: 50F
6-hr Min. temp: 38F
BHO SA 1755 34 SCT 70 202/50/31/3212G17/013/ FEW CI SW-W/ 
8/101 50006 10050 20038 


SUMMARY FOR SUNDAY, OCTOBER 30, 2016
 
TEMPERATURE (DEGREES F)
MAX.....63   NORMAL.....56
MIN.....43   NORMAL.....38
MEAN....53   NORMAL.....47

DEPARTURE FROM 30-YEAR NORMAL........................+6
TOTAL DEPARTURE FOR THE MONTH.......................+79 [+2.4 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY...............0   DEPARTURE...........0
TOTAL COOLING UNITS FOR THE MONTH...............7   DEPARTURE..........+2
TOTAL COOLING UNITS FOR THE SEASON............901   DEPARTURE........+299
TOTAL COOLING UNITS LAST SEASON TO DATE.......810   DIFFERENCE........+91 

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY..............12   DEPARTURE..........-6
TOTAL HEATING UNITS FOR THE MONTH.............324   DEPARTURE.........-79
TOTAL HEATING UNITS FOR THE SEASON............399   DEPARTURE........-146
TOTAL HEATING UNITS LAST SEASON TO DATE.......432   DIFFERENCE........-33

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................25 W   AT 4:08 A.M.
                   ASOS........................27 W   AT 4:07 A.M.
                   DAVIS.......................25 W   AT 4:07 A.M. RMY 26
FASTEST MILE FOR YESTERDAY.....................18 WSW AT 4:54 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE..................18 W   AT 4:53 A.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE.................17 WSW AT 4:54 P.M.   
AVERAGE WIND SPEED AND DIRECTION..............9.7 W
                   ASOS......................10.3
                   DAVIS......................8.5 W [280 Deg.]
*last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.27  DEPARTURE......+0.12
                         ASOS..............0.25
TOTAL PRECIPITATION FOR THE MONTH..........7.04  DEPARTURE......+2.51
                         ASOS..............7.06
TOTAL PRECIPITATION FOR THE YEAR..........34.36  DEPARTURE......-9.25
                         ASOS.............34.70

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/-3/0.19/000/00                 23 N   AERO  M  RMY N/A
10/3  69/53/61/+5/0.00/404/58                 21 ENE AERO  M  RMY 20
10/4  61/47/54/-2/T/493/71                    26 NE  AERO  M  RMY 27
10/5  61/44/53/-3/0.00/630/91                 22 NE  AERO  M  RMY 21
10/6  71/46/59/+4/0.00/682/99                 16 SW* AERO  M  RMY 15
10/7  75/54/65/+10/0.00/679/99                16 S   AERO  M  RMY 16
10/8  69/53/61/+7/0.00/130/19                 23 SSW AERO  M  RMY 23
10/9  63/44/54/0/1.89/000/00                  28 N   AERO  M  RMY 34
10/10 57/40/49/-5/0.00/658/97                 32 NW  AERO  M  RMY 32
10/11 62/39/51/-2/0.00/655/97                 17 N   AERO  M  RMY N/A
10/12 68/49/59/+6/0.00/645/96                 17 S   AERO  M  RMY 17
10/13 71/52/62/+9/T/348/52                    24 SSW AERO  M  RMY 28
10/14 58/41/50/-2/0.00/667/100                26 NNW AERO  M  RMY 25
10/15 58/38/48/-4/0.00/578/87                 23 S   AERO  M  RMY 26
10/16 68/46/57/+6/0.00/562/85                 28 SSW AERO  M  RMY 30
10/17 76/58/67/+16/0.00/494/75                23 WSW AERO  M  RMY N/A
10/18 74/56/65/+14/0.54/210/32                35 SSW AERO  M  RMY 37
10/19 79/58/69/+19/0.00/549/84                29 SSW AERO  M  RMY N/A
10/20 64/54/59/+9/0.05/429/66                 23 ENE AERO  M  RMY 22
10/21 75/57/66/+16/1.60/142/22                30 ESE AERO  M  RMY 31
10/22 65/40/53/+4/0.23/000/00                 37 WSW AERO  M  RMY N/A
10/23 56/41/49/0/0.00/578/90                  47 W   AERO  M  RMY 50
10/24 59/41/50/+1/T/607/95                    38 W   AERO  M  RMY 40
10/25 48/33/41/-8/0.00/586/92                 33 WNW AERO  M  RMY 35
10/26 47/32/40/-8/0.00/495/78                 29 WNW AERO  M  RMY 31
10/27 46/28/37/-11/..../013/02                28 ESE AERO 28 ESE RMY N/A
10/28 51/41/46/-2/..../000/00                 40 WNW AERO 41 WNW RMY 43
10/29 55/37/46/-1/T/000/00                    24 SSW AERO 24 SSW RMY N/A
10/30 63/43/53/+6/0.27/.../..                 25 W   AERO 25 WSW RMY N/A

10/31 Low temp since midnight is 37F; normal low is now 38F

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

RECORDS FOR OCTOBER 31
HIGH 79F IN 1946
LOW 22F IN 1904
PRECIP 3.74 INCHES IN 1991
SNOWFALL TRACE IN 1906
PEAK GUST 70e S IN 1945

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

TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle