BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, JUNE 11, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
 
CLOUDS INCREASE AND THICKEN RAPIDLY THIS MORNING
LIGHT RAIN BEGINS EARLY AFTERNOON EDT
 
High clouds covering the sky early today soon became a
thickening overcast and after a morning high of 67F at
11:08 EST light rain followed at 11:56 A.M. EST and
accumulated to 0.06 in. by the 1300 EST observation. 
 
Today's Observations:
 
7 A.M.
Weather: Scattered cirrus, thin overcast cirrus/cirrostratus,
dense fog/stratus layer ground bases WSW-NW estimated top
4 hundred feet,
Temperature: 59F; Dew Point: 55F; Wind: SSE at 4 kts
Wind: Light
Sea-level pressure: 30.01 ins. Hg, falling
Visibility: 25 miles
6-hr Max temp: 59F
6-hr Min temp: 52F
24-hr precip: 0.00 in.
BHO SA 1155 250 SCT 300 –OVC 25 162/59/55/1604/001/ SHLW DNS STRA LYR
GRND BASES XTDNG WSW-NW ESTMTD TOP 4 HND VSBY WSW-NW 2 VSBY SSE-SW 10
THN FG WND LGT/ 8/007 58004 10059 20052 
 
10 A.M.
Weather: High dense cirrus overcast
Temperature: 63F; Dew Point: 52F; Wind: SW at 6 kts
Sea-level pressure: 29.96 ins. Hg, falling then more slowly
Visibility: 35 miles, WNW 45, distant haze
BHO SA 1455 E200 BKN 220 OVC 35 146/63/52/2206/996/ FEW AC/ACSL W-NNE
DNS CI ALQDS THN SPT IOVC VC WNW VSBY WNW 45 DSNT HZ ALQDS WND LGT/ 8
8/042 56016 
 
1 P.M.
Weather: Scattered stratocumulus, overcast nimbostratus, light rain,
light rain began 1656Z
Temperature: 59F; Dew Point: 54F; Wind: SSW at 15 kts
Sea-level pressure: 29.90 ins. Hg, falling then more rapidly
Visibility: 8 miles, light rain
6-hr Max temp: 67F
6-hr Min temp: 59F
6-hr precip: 0.06 in.
BHO SA 1755 65 SCT E95 0VC 8R- 125/59/54/2115/990/ RB1656/ 8/52/
58021 ASOS 60006 MANUAL 6006/ 10067 20059
 
SUMMARY FOR FRIDAY, JUNE 10, 2016
 
TEMPERATURE (DEGREES F)
MAX.....71   NORMAL.....73
MIN.....50   NORMAL.....56
MEAN....61   NORMAL.....65
 
DEPARTURE FROM 30-YEAR NORMAL.........................-4
TOTAL DEPARTURE FOR THE MONTH........................+15 [+1.3 DEGREES/DAY]
 
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY...............4   DEPARTURE..........+4
TOTAL HEATING UNITS FOR THE MONTH..............22   DEPARTURE.........-19
TOTAL HEATING UNITS FOR THE SEASON...........5270   DEPARTURE.......-1073
TOTAL HEATING UNITS LAST SEASON TO DATE......6482   DIFFERENCE......-1212
 
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY...............0   DEPARTURE..........-3
TOTAL COOLING UNITS FOR THE MONTH..............19   DEPARTURE..........-2
TOTAL COOLING UNITS FOR THE SEASON.............67   DEPARTURE.........+22
TOTAL COOLING UNITS LAST SEASON TO DATE........58   DIFFERENCE........ +9   
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY...................25 NW  AT  2:48 P.M. 
                   ASOS........................26 NW  AT  2:48 P.M.  
                   DAVIS.......................26 WNW AT  2:48 P.M. RMY 26
FASTEST MILE FOR YESTERDAY.....................17 NW  AT  2:49 P.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE..................18 NW  AT  2:48 P.M.   
MAXIMUM 2-MINUTE DAVIS AVERAGE.................17 WNW AT  2:19 P.M. 
AVERAGE WIND SPEED AND DIRECTION.............11.7 NW 
                   ASOS......................10.4
                   DAVIS......................9.1 WNW [300 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..........0.99  DEPARTURE......-0.66
                         ASOS..............1.02
TOTAL PRECIPITATION FOR THE YEAR..........21.06  DEPARTURE......-3.25
                         ASOS.............21.46

PRELIMINARY CLIMATE SUMMARY FOR JUNE 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
 
6/1  71/54/63/+1/0.00/.../..                 26 NE  AERO 30 NE  RMY N/A
6/2  68/54/61/-1/0.00/.../..               # 21 NE  AERO 22 NE  RMY 21
6/3  70/57/64/+2/T/.../..                    16 SSW AERO 17 SSW RMY 16
6/4  81/61/71/+8/0.00/.../..                 18 S   AERO 21 S   RMY 20
6/5  67/60/64/+1/0.76/000/00                 32 SSE AERO 36 SSE RMY 34 
6/6  80/63/72/+9/0.00/.../..                 26 W   AERO 28 W   RMY 27
6/7  83/58/71/+7/0.18/.../..                 32 WNW AERO 36 WNW RMY 33 TSTM
6/8  72/52/62/-2/0.05/.../..                 37 WNW AERO 41 WNW RMY 38
6/9  67/48/58/-6/0.00/.../..                 41 WNW AERO 45 WNW RMY 40
6/10 71/50/61/-4/0.00/.../..                 25 W   AERO 28 W   RMY 26
 
6/11 low temp since midnight is 52F; normal low now 56F
 
* Last of several occurrences
 
# 6/2 Peak gust corrected from 28 to 21 MPH (420C)
  (on this discussion only, 3rd,4th) 
 
DAILY RECORDS FOR JUNE 2016
None so far
    
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JUNE 11
HIGH 92F IN 1973, 1984
LOW 40F IN 1972
PRECIP 2.66 INCHES IN 1922
PEAK GUST 43e MPH S IN 1945
 
RECORDS FOR JUNE 12
HIGH 92F IN 1973
LOW 40F IN 1906
PRECIP 1.79 INS 1955
PEAK GUST 58 MPH NW IN 1991
 
TODAY'S REPORT PREPARED BY: Robert Skilling