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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, JUNE 27, 2016 
ALL TIMES ARE IN EASTERN STANDARD TIME

AFTERNOON WINDS AND SKY COVER INCREASE, DRY CONDITIONS REMAIN 

After a morning of light winds, wind speeds increased to gusts up to
25 MPH.  Skies were mostly clear in the morning, but became partly
cloudy with cirrus and cirrostratus by the afternoon.  Visibility 
was restricted by distant haze and measured 40 miles at each
observation.  Temperatures rose quickly reaching a max. of 83F by 
1:00PM EST.  Dew points decreased throughout the day but remained 
in the 50s.


Today's Observations:

7 A.M. 
Weather: Few cirrus in all directions
Temperature: 68F; Dew Point: 59F; Wind: SSW at 8 kts
Sea-level pressure: 30.11 in. Hg, rising unsteadily
Visibility: 40 miles, distant haze 
6-hr Max temp: 68F 
6-hr Min temp: 60F
24-hr precip: 0.00 in.
BHO SA 1155 CLR 40 197/68/59/2008/011/ FEW CI ALQDS DSNT HZ/ 
8/001 51001 10068 20060

10 A.M.
Weather: Few cirrocumulus N, thin, scattered cirrus
Temperature: 80F; Dew Point: 57F; Wind: SSW at 13G20 kts
Sea-level pressure: 30.08 in. Hg, falling, then more quickly
Visibility:  40 miles, distant haze  
BHO SA 1455 250 -SCT 40 186/80/57/2113G20/008/ FEW CC N DSNT HZ/ 
8/001 58011
 
1 P.M.
Weather: Scattered cirrostratus
Temperature: 83F; Dew Point: 53F; Wind: S at 10G25 kts
Sea-level pressure: 30.03 in. Hg, falling, then more quickly 
Visibility: 40 miles, distant haze 
6-hr Max temp: 83F 
6-hr Min temp: 68F
BHO SA 1755 270 SCT 40 169/83/53/1810G25/003/ DSNT HZ/ 
8/008 58017 10083 20068

 
SUMMARY FOR SUNDAY, JUNE 26, 2016 
 
TEMPERATURE (DEGREES F)
MAX.....86   NORMAL.....78
MIN.....59   NORMAL.....60 
MEAN....73   NORMAL.....69

DEPARTURE FROM 30-YEAR NORMAL.........................+4
TOTAL DEPARTURE FOR THE MONTH........................+25 [+0.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY...............0   DEPARTURE..........-1
TOTAL HEATING UNITS FOR THE MONTH..............34   DEPARTURE.........-36
TOTAL HEATING UNITS FOR THE SEASON...........5282   DEPARTURE.......-1091
TOTAL HEATING UNITS LAST SEASON TO DATE......6491   DIFFERENCE......-1209

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY...............8   DEPARTURE..........+3
TOTAL COOLING UNITS FOR THE MONTH..............74   DEPARTURE..........-8
TOTAL COOLING UNITS FOR THE SEASON............122   DEPARTURE.........+16
TOTAL COOLING UNITS LAST SEASON TO DATE.......132   DIFFERENCE........-10   

PEAK GUST AND AVERAGE WIND SPEED (MPH) 
PEAK WIND GUST FOR YESTERDAY...................25 S  AT  2:42 P.M.  
                   ASOS........................27 S  AT  2:43 P.M.     
                   DAVIS.......................24 S  AT  2:31 P.M. RMY 26
FASTEST MILE FOR YESTERDAY.....................17 S  AT  2:41 P.M.    
MAXIMUM 2-MINUTE ASOS AVERAGE..................18 S  AT  3:55 P.M.      
MAXIMUM 2-MINUTE DAVIS AVERAGE.................18 S  AT  2:57 P.M.     
AVERAGE WIND SPEED AND DIRECTION...............9.9 S
                   ASOS........................10.3
                   DAVIS.......................9.1 S [190 Deg.]
* Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE......-0.12
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........1.46  DEPARTURE......-2.40
                           ASOS............1.51
TOTAL PRECIPITATION FOR THE YEAR..........21.53  DEPARTURE......-4.99
                         ASOS.............21.95
 
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/-2/0.05/684/75                 37 WNW AERO 41 WNW RMY 38 TSTM
6/9  67/48/58/-6/0.00/466/51                 41 WNW AERO 45 WNW RMY 40
6/10 71/50/61/-4/0.00/823/90                 25 W   AERO 28 W   RMY 26
6/11 68/52/60/-5/0.06/155/17                 30 SSW AERO 35 SSW RMY 31
6/12 76/51/64/-1/T/558/61                    41 W   AERO 48 W   RMY 42
6/13 70/49/60/-5/0.00/641/70                 36 NW  AERO 46 NW  RMY 38
6/14 77/50/64/-2/0.00/889/97                 32 NNW AERO 38 NNW RMY 33
6/15 83/60/72/+6/0.00/852/93                 22 NW  AERO 26 NW  RMY 25
6/16 82/62/72/+6/0.00/660/72                 26 E   AERO 28 E   RMY 27
6/17 77/59/68/+1/T/834/91                    25 E   AERO 28 E   RMY 23 TSTM
6/18 75/55/65/-2/0.00/899/98                 22 SSW AERO 24 SSE RMY N/A
6/19 79/55/67/+0/0.00/807/88                 32 S   AERO 35 S   RMY 36
6/20 81/57/69/+1/0.00/871/95                 25 S   AERO 28 S   RMY 27
6/21 82/61/72/+1/0.40/596/65                 30 WSW AERO 31 W*  RMY 33 
6/22 79/59/69/+1/0.01/495/54                 31 NW  AERO 35 NW  RMY 31
6/23 84/56/70/+2/0.00/642/70                 17 S   AERO 18 S   RMY 18 
6/24 77/58/68/-1/0.00/889/97                 20 NE  AERO 21 NE  RMY 20
6/25 80/60/70/+1/0.00/.../..                 16 ENE AERO 17 ENE RMY 16
6/26 86/59/73/+4/0.00/.../..                 25 S   AERO 26 S   RMY 26

6/27 low temp since midnight is 60F; normal low now 60F

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 27
HIGH 93F IN 1999, 2007
LOW 46F IN 1897
PRECIP 1.72 INS IN 1938
PEAK GUST 55e N IN 1945

RECORDS FOR JUNE 28
HIGH 95F IN 1991
LOW 47F IN 1970
PRECIP 2.09 INS IN 1938
PEAK GUST 52 MPH WSW IN 1993

TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle