BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, JUNE 8, 2007   
ALL TIMES ARE IN EASTERN STANDARD TIME
 
  
Today's observations:
 
7 A.M.   
Weather: Thin broken cirrus 
Temperature: 63F, Dew point: 55F, Wind: S at 5 kt  
Sea-level pressure: 30.02 inches Hg, rising 
Visibility: 10 miles with haze    
6-hour min temp. 58F   
BHO SA 1155 250 –BKN 10 166/63/55/1805/002/ 
WND L/V HAZY/ 8/001 51001 10063 20058
     
10 A.M. 
Weather: Thin scattered cirrus 
Temperature: 73F, Dew point: 60F, Wind: ESE at 9 kt 
Sea-level pressure: 30.01 inches Hg, falling
Visibility: 15 miles with haze    
BHO SA 1455 250 –SCT 15 161/73/60/1109/001/ HAZY/ 8/001 58005 
 
 
WEATHER SUMMARY FOR THURSDAY, JUNE 7 
 
TEMPERATURE (DEGREES F)
MAX.....69    NORMAL.....73 
MIN.....44    NORMAL.....54
MEAN....57    NORMAL.....64
DEPARTURE FROM 30-YEAR NORMAL..........- 7
TOTAL DEPARTURE FOR THE MONTH..........+10 (+1.2 DEGREES/DAY)
 
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............8  DEPARTURE.........+4
TOTAL HEATING UNITS FOR THE MONTH...........27  DEPARTURE.........-3  
TOTAL HEATING UNITS FOR THE SEASON........5858  DEPARTURE.......-469
TOTAL HEATING UNITS LAST SEASON TO DATE...5769  DIFFERENCE.......+89 
 

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............23   W AT 12:10 P.M.   
                   AEROVANE.............20   W AT 12:08 P.M.     
                   ASOS.................N/A #    
                   DAVIS................22   W AT 12:09 P.M.    
FASTEST MILE FOR YESTERDAY..............15  SW AT 11:52 P.M.  
MAXIMUM 2-MINUTE ASOS AVERAGE...........N/A #       
MAXIMUM 2-MINUTE DAVIS AVERAGE..........16 WSW AT 12:11 P.M.   
AVERAGE WIND SPEED AND DIRECTION.......9.0   W   
                   ASOS.................N/A #   
                   DAVIS...............9.5 WSW [257 deg]
# ASOS WINDS SWITCHED OFF BY NWS 6/6, IT IS NOT KNOWN WHEN 
THAT DATA WILL RESUME
 
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00  DEPARTURE.....-0.13
                         ASOS..............0.00  
TOTAL PRECIPITATION FOR THE MONTH..........1.81  DEPARTURE.....+0.90 
                         ASOS..............1.83    
TOTAL PRECIPITATION FOR THE YEAR..........25.97  DEPARTURE.....+3.32
                         ASOS.............25.47   
 
 
PRELIMINARY CLIMATE SUMMARY FOR JUNE 2007......CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
 
AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available
 
6/1  87/56/72/+10/0.12/.../..       45 NNW  Aero 44 MPH TSTM AM/PM
6/2  87/64/76/+14/0.01/.../..       23 SSE  TSTM PM    
6/3  68/50/59/-3/0.14/000/000       24 NNE  TSTM AM (no rain)
6/4  63/50/57/-6/1.52/000/00        35 NE   TSTM 10:15-10:50 A.M. 
6/5  78/57/68/+5/0.01/.../..        38 S   
6/6  70/49/60/-3/0/.../..           35 W   
6/7  69/44/57/-7/0/.../..           23 W
 
6/7  morning low temp. 44 deg; normal now 54 deg.
 
      NEW DAILY RECORDS FOR JUNE: 
 
6/4 - NEW RECORD DAILY RAINFALL OF 1.52 INS; THE PREVIOUS 
      RECORD WAS 1.29 INS. IN 1898.
 

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JUNE 8
HIGH 94F IN 1984
LOW 37F IN 1932
PRECIP 1.53 INCHES IN 1947
PEAK GUST 86e MPH WNW IN 1946 [Record for month]
 
RECORDS FOR JUNE 9
HIGH 92F IN 1984
LOW 40F IN 1980
PRECIP 2.08 INCHES IN 1931
PEAK GUST 67 MPH NW IN 1973

TODAY'S REPORT PREPARED By: Andrew Hoell