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

DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, JUNE 15, 2016 
ALL TIMES ARE IN EASTERN STANDARD TIME

TEMPERATURES QUICKLY RISE THIS MORNING, DRY CONDITIONS PREVAIL

Cloud cover during the early morning prevented temperatures to
drop too much resulting in an overnight low of just 60F.  Morning 
skies cleared to few cirrus and few cumulus at the 10:00AM EST 
observation, but became partly cloudy by the 1:00PM observation.

Temperatures reached 82F by 1:00PM, making the day 5F above normal
through the early afternoon.  High pressure and dry conditions 
brought the afternoon humidity down to 31%.


Today's Observations:

7 A.M. 
Weather: Scattered cirrostratus, few altocumulus SE-SSE
Temperature: 68F; Dew Point: 53F; Wind: WNW at 7 kts 
Sea-level pressure: 29.91 in. Hg, rising, then more quickly
Visibility: 70 miles
6-hr Max temp: 68F 
6-hr Min temp: 60F
24-hr precip: 0.00 in.
BHO SA 1155 250 SCT 70 128/68/53/3007/991/ FEW AC SE-SSE/
8/085 51007 10068 20060

10 A.M.
Weather: Few cumulus in all directions, few cirrus S-WNW
Temperature: 77F; Dew Point: 51F; Wind: W at 7G12 kts
Sea-level pressure: 29.90 in. Hg, steady, then falling
Visibility: 70 miles
BHO SA 1455 CLR 70 126/77/51/2807G12/990/ FEW CU ALQDS FEW CI S-WNW/ 
8/101 58002

1 P.M.
Weather: Scattered cumulus, thin scattered cirrus
Temperature: 82F; Dew Point: 49F; Wind: W at 12G17 kts 
Sea-level pressure: 29.86 in. Hg, falling, then more slowly
Visibility: 70 miles
6-hr Max temp: 82F
6-hr Min temp: 68F
BHO SA 1755 64 SCT 250 -SCT 70 111/82/49/2912G17/986/
8/101 56015 10082 20068

SUMMARY FOR TUESDAY, JUNE 14, 2016 
 
TEMPERATURE (DEGREES F)
MAX.....77   NORMAL.....75
MIN.....50   NORMAL.....57 
MEAN....64   NORMAL.....66

DEPARTURE FROM 30-YEAR NORMAL.........................-2
TOTAL DEPARTURE FOR THE MONTH.........................+2 [+0.1 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY...............1   DEPARTURE..........-2
TOTAL HEATING UNITS FOR THE MONTH..............34   DEPARTURE.........-17
TOTAL HEATING UNITS FOR THE SEASON...........5282   DEPARTURE.......-1072
TOTAL HEATING UNITS LAST SEASON TO DATE......6482   DIFFERENCE......-1200

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY...............0   DEPARTURE..........-3
TOTAL COOLING UNITS FOR THE MONTH..............19   DEPARTURE.........-14
TOTAL COOLING UNITS FOR THE SEASON.............67   DEPARTURE.........+10
TOTAL COOLING UNITS LAST SEASON TO DATE........90   DIFFERENCE........-23   

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................32 NNW  AT 11:53 A.M.  
                   ASOS........................35 NNW  AT 11:53 A.M.   
                   DAVIS.......................32 NNW  AT 11:53 A.M. RMY 33
FASTEST MILE FOR YESTERDAY.....................25 NW   AT 12:32 P.M.   
MAXIMUM 2-MINUTE ASOS AVERAGE..................24 NW   AT 12:33 P.M.    
MAXIMUM 2-MINUTE DAVIS AVERAGE.................22 NW   AT 12:34 P.M.  
AVERAGE WIND SPEED AND DIRECTION..............12.3 NW
                   ASOS.......................11.7
                   DAVIS......................10.3 NW [310 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..........1.05  DEPARTURE......-1.23
                         ASOS..............1.08
TOTAL PRECIPITATION FOR THE YEAR..........21.12  DEPARTURE......-3.82
                         ASOS.............21.52
 
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/+1/0.00/860/95                 26 NE  AERO 30 NE  RMY N/A
6/2  68/54/61/-1/0.00/444/49                 21 NE  AERO 22 NE  RMY 21
6/3  70/57/64/+2/T/173/19                    16 SSW AERO 17 SSW RMY 16
6/4  81/61/71/+8/0.00/491/54                 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/+9/0.00/747/82                 26 W   AERO 28 W   RMY 27 
6/7  83/58/71/+7/0.18/602/66                 32 WNW AERO 36 WNW RMY 33 TSTM 
6/8  72/52/62/-2/0.05/748/82                 37 WNW AERO 41 WNW RMY 38
6/9  67/48/58/-6/0.00/466/51                 41 WNW AERO 45 WNW RMY 40
6/10 71/50/61/-4/0.00/841/92                 25 W   AERO 28 W   RMY 26
6/11 68/52/60/-5/0.06/.../..                 30 SSW AERO 35 SSW RMY 31
6/12 76/51/64/-1/T/.../..                    41 W   AERO 48 W   RMY 42
6/13 70/49/60/-5/0.00/.../..                 36 NW  AERO 46 NW  RMY 38
6/14 77/50/64/-2/0.00/.../..                 32 NNW AERO 38 NNW RMY 33

6/15 low temp since midnight is 60F; normal low now 57F


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 15
HIGH 94F IN 1988
LOW 42F IN 1959, 1978
PRECIP 2.04 INS IN 1903
PEAK GUST 52 MPH SW IN 1972

RECORDS FOR JUNE 16
HIGH 92F IN 1891, 1967
LOW 44F IN 1926
PRECIP 2.17 INS IN 1931
PEAK GUST 55 MPH W IN 1958

TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle