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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, OCTOBER 24, 2016  
ALL TIMES ARE IN EASTERN STANDARD TIME

TRACE OF PRECIP BEFORE 7:00AM, GUSTY WINDS CONTINUE

Low pressure moving through the region gave us just a trace of precip.
between 4:00AM and 5:00AM EST this morning.  Winds have been out of the
NW for most of the day and have remained quite gusty with a peak gust of
33 kts (38 MPH) just before 11:00AM EST.

Dry air has settled into the region, and dew points dropped to the low-30s
by early afternoon.  Visibility was again excellent at 70 miles all day.
Skies remained mostly clear until early afternoon when diurnal cumulus began
to pop up.

Temperatures are more seasonable today.  The overnight low of 47F occurred
just before the 7:00AM observation, but temperatures rose only to 58F by
1:00PM.  


7 A.M. 
Weather: Few cumulus SSW-NE, few cirrostratus ENE-SSW
Temperature: 47F; Dew Point: 39F; Wind: WSW at 11 kts
Sea-level pressure: 29.79 ins. Hg, rising, then less quickly
Visibility: 70 miles
6-hr Max temp: 48F
6-hr Min temp: 47F
24-hr precip: Trace
BHO SA 1155 CLR 70 089/47/39/2511/979/ FEW CU SSW-NE FEW CS ENE-SSW/
8/105 51009 10048 20047

10 A.M.
Weather: Few cumulus SSE-E
Temperature: 55F; Dew Point: 33F; Wind: WNW at 17G24 kts
Peak Wind: 29 kts (33 mph) WNW at 8:56 AM EST
Sea-level pressure: 29.79 ins. Hg, rising then falling
Visibility: 70 miles
BHO SA 1455 CLR 70 088/55/33/3017G24/979/ FEW CU SSE-E PK WND 3029/56/
8/100 58001

1 P.M.
Weather: Scattered cumulus, few cirrostratus W-WNW
Temperature: 58F; Dew Point: 30F; Wind: W at 17G26 kts
Peak Wind: 32 kts (37 mph) W at 12:03 PM EST
Sea-level pressure: 29.79 ins. Hg, falling, then rising
Visibility: 70 miles
6-hr Max. temp: 58F
6-hr Min. temp: 47F
BHO SA 1755 44 SCT 70 087/58/30/2717G26/979/ FEW CS W-WNW PK WND 2832/03/
8/105 56001 10058 20047

SUMMARY FOR SUNDAY, OCTOBER 23, 2016
 
TEMPERATURE (DEGREES F)
MAX.....56   NORMAL.....58
MIN.....41   NORMAL.....40
MEAN....49   NORMAL.....49

DEPARTURE FROM 30-YEAR NORMAL.........................0
TOTAL DEPARTURE FOR THE MONTH......................+102 [+4.2 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..............16   DEPARTURE...........0
TOTAL HEATING UNITS FOR THE MONTH.............182   DEPARTURE........-101
TOTAL HEATING UNITS FOR THE SEASON............257   DEPARTURE........-168
TOTAL HEATING UNITS LAST SEASON TO DATE.......326   DIFFERENCE........-69

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................47 W   AT  3:11 A.M.
                   ASOS........................47 W   AT  3:06 A.M.
                   DAVIS.......................48 WSW AT  9:53 A.M. RMY 50 
FASTEST MILE FOR YESTERDAY.....................33 W   AT 11:53 A.M.*     
MAXIMUM 2-MINUTE ASOS AVERAGE..................33 W   AT  4:02 P.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE.................33 WSW AT  7:08 A.M.   
AVERAGE WIND SPEED AND DIRECTION.............22.4 WSW
                   ASOS......................21.5
                   DAVIS.....................19.1 W [260 Deg.]
*last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M...Trace  DEPARTURE......-0.16
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........5.72  DEPARTURE......+2.27
                         ASOS..............5.75
TOTAL PRECIPITATION FOR THE YEAR..........33.04  DEPARTURE......-9.49
                         ASOS.............33.39 
 

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/..../429/66                 23 ENE AERO  M  RMY 22
10/21 75/57/66/+16/..../142/22                30 ESE AERO  M  RMY 31
10/22 65/40/53/+4/..../.../..                 37 WSW AERO  M  RMY N/A
10/23 56/41/49/0/..../.../..                  47 W   AERO  M  RMY 50

10/24 Low temp since midnight is 47F; normal low is now 40F

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

RECORDS FOR OCTOBER 24
HIGH 79F IN 1963
LOW 22F IN 1969
PRECIP 2.96 INCHES IN 1890
SNOWFALL 1.8 INCHES IN 1960
PEAK GUST 70 MPH SE IN 1959

RECORDS FOR OCTOBER 25
HIGH 81F IN 1963
LOW 26F IN 1922,1939
PRECIP 2.45 INCHES IN 2005
SNOWFALL 1.2 INCHES IN 1960
PEAK GUST 72 MPH ESE IN 1980

TODAY'S REPORT PREPARED BY: Lizzy Suzedell