BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, JUNE 14, 2010 
ALL TIMES ARE IN EASTERN STANDARD TIME
 
COOLER THAN NORMAL FOR 8 DAYS NOW AND THE
MONTHLY AVERAGE TEMP. SLIPS WAY DOWN CLOSE
TO NORMAL AFTER BEING PLUS 8 DEG.
 
Today will make the 8th consecutive day
with cooler than normal temperatures.
The June average has dropped from eight
degrees on the warm side during the first
six days to just a degree above normal
through yesterday. 
The sky has remained overcast with just
a few minutes of sunshine through 2 PM
EDT. Heavy fog dissipated this morning
after prevailing throughout yesterday. 
 
Today's observations: 

7 A.M.
Weather: Overcast stratus, fog, ceiling and visibility
increasing rapidly  
Temperature: 59F, Dew point: 58F; Wind: NNE at 3 kts
Sea-level pressure: 29.86 inches Hg, falling 
Visibility: 1 1/4 miles, 1/4 north, 2 miles southeast
6-hour minimum temp: 56F 
24-hour rainfall: trace
BHO SA 1155 W2 X 11/4F 112/58/58/0203/986/
VSBY N 1/4 SE 2 VSBY/CIG INCRSNG RPDLY/ 8/6//
58005 10059 20056   
 
10 A.M. 
Weather: Overcast stratocumulus, small breaks in overcast overhead,
higher clouds visible, sun occasionally visible
Temperature: 64F, Dew point: 59F; Wind: W at 3 kts
Sea-level pressure: 29.86 inches Hg, falling 
Visibility: 30 miles, northeast 25, southeast 15,
southwest thru northwest 35 miles, light haze
Wind: Light
BHO SA 1455 E12 BKN 25 OVC 30 111/64/59/2803/986/
SML BINOVC OVHD HIER CLD VSB SUN OCNL VSBL VSBY NE 20
SE 12 SW-NW 35/ LGT HZ/ 8/5// 58001
 
1 P.M.  
Weather: Overcast altocumulus, two layers, small brk in overcast,
few stratocumulus 
Temperature: 70F, Dew point: 59F, Wind: W at 3 kts,
Wind: Light
Sea-level pressure: 29.83 inches Hg, falling
Visibility: 20 miles, hazy
6-hour max. temp: 70F
BHO SA 1755 E130 BKN 150 OVC 20 101/70/59/2803/983/
FEW SC SML BINOVC W-WSW SUN OCNL VSB HAZY WND LGT/
8/57/ 58010 10070 20058 
 
WEATHER SUMMARY FOR SUNDAY, JUNE 13
 
TEMPERATURE (DEGREES F)
MAX.....64     NORMAL.....75
MIN.....56     NORMAL.....55
MEAN....60     NORMAL.....65
 
DEPARTURE FROM 30-YEAR AVERAGE................-5
TOTAL DEPARTURE FOR THE MONTH................+14 [+0.9 DEGREE/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY.............5   DEPARTURE........+3
TOTAL HEATING UNITS FOR THE MONTH............37   DEPARTURE.......-11
TOTAL HEATING UNITS FOR THE SEASON.........5678   DEPARTURE......-666
TOTAL HEATING UNITS LAST SEASON TO DATE....6178   DIFFERENCE.....-500
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.............18 N   AT  1:48 P.M.
                   AEROVANE..............18 N   AT  1:49 P.M.   
                   ASOS..................18 N   AT  1:48 P.M.   
                   DAVIS.................24 N   AT  1:49 P.M. *   
THE FASTEST MILE FOR YESTERDAY...........11 N   AT  1:08 P.M.   
MAXIMUM 2-MINUTE ASOS AVERAGE............13 N   AT  1:09 P.M.   
MAXIMUM 2-MINUTE DAVIS AVERAGE...........13 N   AT  1:09 P.M.  
AVERAGE WIND SPEED AND DIRECTION........7.0 NNE 
                   ASOS.................7.0
                   DAVIS................7.1 NNE [030 DEG]
* Davis registered high due mast obstruction turbulence
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....trace DEPARTURE......-0.13
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........1.64  DEPARTURE......-0.05
                         ASOS..............1.61
TOTAL PRECIPITATION FOR THE YEAR..........35.05  DEPARTURE.....+11.62
                         ASOS.............35.09 
 
PRELIMINARY CLIMATE SUMMARY FOR JUNE 2010 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust when significant
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
 
6/1  82/57/70/+8/0.86/0/199/22  33 WNW AERO 38 MPH WNW TSTM
6/2  80/59/70/+8/0.00/752/83    22 S
6/3  80/59/70/+8/T/263/29       28 S   AERO 31 MPH S TSTM  
6/4  84/59/72/+9/0/499/55       23 SSW
6/5  83/63/73/+10/0.16/309/34   32 W   AERO 36 MPH W TSTM
6/6  80/54/67/+4/0.07/064/07    43 S   AERO 48 MPH S TSTM
6/7  72/51/62/-2/T/683/75       27 W   AERO 30 MPH WNW
6/8  69/51/60/-4/T/812/89       30 WNW AERO 33 MPH WNW
6/9  70/49/60/-4/.../.../..     27 SSW
6/10 58/50/54/-10/.../.../..    22 ESE
6/11 68/53/61/-4/0/.../..       20 S
6/12 66/55/61/-4/.../.../..     18 SSE
6/13 64/56/60/-5/.../.../..     18 N
 
6/14 our morning low temp: 56F; the normal low is 56F
 
NEW DAILY RECORDS FOR JUNE 2010
None to date
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JUNE 14
HIGH 93F IN 1956
LOW 41F IN 1912
PRECIP 1.49 INS 1896
PEAK GUST 55 MPH WNW IN 1958
 
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
 
TODAY'S REPORT PREPARED BY: Robert Skilling