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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, OCTOBER 7, 2016  
ALL TIMES ARE IN EASTERN STANDARD TIME

WINDS LIGHT, CLEAR SKIES ALL DAY

Today was another beautiful day on top of Great Blue Hill.  Skies were clear
until the 1:00PM EST observation when just a few cumulus clouds could be seen
N and SE of the observatory.  Winds remained quite light and varied direction
throughout the day.

Temperatures were again slightly warmer than normal.  The overnight low of 56F
was approximately 10F warmer than previous nights.  Day time temperatures
quickly rose to a max. of 75F by 1:00PM while dew points increased to the
mid-50s.


7 A.M. 
Weather: Clear, thin patches of steam fog dissipating over the ponds
in vicinity S-SSE
Temperature: 58F; Dew Point: 47F; Wind: N at 10 kts
Sea-level pressure: 30.32 ins. Hg, rising, then more quickly
Visibility: 70 miles
6-hr Max temp: 58F
6-hr Min temp: 54F
24-hr precip: 0.00 in.
BHO SA 1155 CLR 70 268/58/47/3610/032/ SKC PTCHS STEAM FG DSSPTG OVR
PONDS VC E-SSE/ 53012 10058 20054

10 A.M.
Weather: Clear
Temperature: 69F; Dew Point: 53F; Wind: estimated ESE at 3 kts,
Wind: Light and variable
Sea-level pressure: 30.34 ins. Hg, rising then falling
Visibility: 70 miles
BHO SA 1455 CLR 70 274/69/53/E1103/034/ SKC WND LGT/ 50006

1 P.M.
Weather: Few cumulus N and SE
Temperature: 75F; Dew Point: 54F; Wind: estimated NNE at 2 kts,
Wind Speed: Light
Sea-level pressure: 30.29 ins. Hg, falling, then more quickly
Visibility: 70 miles
6-hr Max. temp: 75F
6-hr Min. temp: 58F
BHO SA 1755 CLR 70 258/75/54/E0302/029/ FEW CU N AND SE WND LGT/ 8/100 
58016 10075 20058


SUMMARY FOR THURSDAY, OCTOBER 6, 2016
 
TEMPERATURE (DEGREES F)
MAX.....71   NORMAL.....64
MIN.....46   NORMAL.....47
MEAN....59   NORMAL.....55

DEPARTURE FROM 30-YEAR NORMAL........................+4
TOTAL DEPARTURE FOR THE MONTH........................+3 [+0.3 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..........-2
TOTAL COOLING UNITS FOR THE SEASON............894   DEPARTURE........+295
TOTAL COOLING UNITS LAST SEASON TO DATE.......810   DIFFERENCE........+84 

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY...............6   DEPARTURE..........-4
TOTAL HEATING UNITS FOR THE MONTH..............54   DEPARTURE..........-2
TOTAL HEATING UNITS FOR THE SEASON............129   DEPARTURE.........-69
TOTAL HEATING UNITS LAST SEASON TO DATE.......122   DIFFERENCE.........+7

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................16 SW  AT  9:20 P.M.* 
                   ASOS........................15 SW  AT  9:21 P.M.  
                   DAVIS.......................15 SSW AT  9:22 P.M. RMY 15 
FASTEST MILE FOR YESTERDAY.....................13 SW  AT  9:21 P.M.     
MAXIMUM 2-MINUTE ASOS AVERAGE..................14 SW  AT  9:21 P.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE.................12 SSW AT  9:22 P.M.   
AVERAGE WIND SPEED AND DIRECTION..............4.8 SSW
                   ASOS.......................5.6
                   DAVIS......................4.6 SW [230 Deg.]
* Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE......-0.15
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........1.41  DEPARTURE......+0.52
                         ASOS..............1.43
TOTAL PRECIPITATION FOR THE YEAR..........28.73  DEPARTURE.....-11.24
                         ASOS.............29.07 
 

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 Low temp since midnight is 54F; normal low is now 46F

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

RECORDS FOR OCTOBER 7
HIGH 88F IN 1963 (RECORD FOR MONTH)
LOW 30F IN 1904,1986
PRECIP 1.75 INCHES IN 1972
PEAK GUST 54 W IN 2009

RECORDS FOR OCTOBER 8
HIGH 81F IN 1916,1990
LOW 28F IN 1919
PRECIP 2.31 INCHES IN 1891
SNOWFALL TRACE IN 1988, 2001 (EARLIEST DATE)
PEAK GUST 60 MPH NE IN 1996

TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle/Lizzy Suzedell