BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, JULY 8, 2007   
ALL TIMES ARE IN EASTERN STANDARD TIME
 

Today's observations:
 
7 A.M.   
Weather: Scattered altocumulus, thin scattered cirrus 
Temperature: 73F, Dew point: 58F, Wind: WSW at 13 kt 
Sea-level pressure: 29.77 inches Hg, steady
Visibility: 30 miles with haze
6-hour min temp: 68F    
BHO SA 1155 150 SCT 250 –SCT 30 082/73/58/2413/977/ 
ACC NW-N HAZY/ 8/051 57000 10073 20068
 
10 A.M. 
Weather: Scattered altocumulus, broken cirrus
Temperature: 84F, Dew point: 60F, Wind: WSW at 15 kt 
Sea-level pressure: 29.75 inches Hg, falling 
Visibility: 25 miles with haze    
BHO SA 1455 150 SCT 250 BKN 25 075/84/60/2515/975/ HAZY/ 8/401 58007
 

WEATHER SUMMARY FOR SATURDAY, JULY 7
 
TEMPERATURE (DEGREES F)
MAX.....81    NORMAL.....80 
MIN.....60    NORMAL.....61
MEAN....71    NORMAL.....71
DEPARTURE FROM 30-YEAR NORMAL.........0
TOTAL DEPARTURE FOR THE MONTH.......-23  (-3.1 DEGREES/DAY)
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..............32 WSW AT 3:38 P.M.     
                   AEROVANE...............30 WSW AT 3:38 P.M.   
                   ASOS...................N/A  #
                   DAVIS..................43 WSW AT 3:38 P.M.        
FASTEST MILE FOR YESTERDAY................25 WSW AT 3:40 P.M.     
MAXIMUM 2-MINUTE ASOS AVERAGE.............N/A  # 
MAXIMUM 2-MINUTE DAVIS AVERAGE............25 WSW AT 3:40 P.M.          
AVERAGE WIND SPEED AND DIRECTION........11.8 W 
                   ASOS...................N/A  #
                   DAVIS................12.4 WSW [249 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.....-0.12
                         ASOS..............0.00  
TOTAL PRECIPITATION FOR JULY...............0.37  DEPARTURE.....-0.49 
                         ASOS..............0.33    
TOTAL PRECIPITATION FOR THE YEAR..........27.35  DEPARTURE.....+0.82 
                   ASOS FOR YEAR..........26.74    
 
PRELIMINARY CLIMATE SUMMARY FOR JULY 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
 
7/1  70/52/61/-9/0.02/649/71      
7/2  73/50/62/-8/0/841/92
7/3  75/53/64/-6/0/839/92
7/4  78/58/68/-2/0.09/465/51
7/5  80/61/71/ 0/0.24/383/42
7/6  83/62/73/+2/0.01/.../..
7/7  81/60/71/0/0/.../..
 

NEW DAILY RECORDS FOR JULY 2007:  
 
None to date
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JULY 8
HIGH 95F IN 1981
LOW 50F IN 1919
PRECIP 1.74 INCHES IN 1916
PEAK GUST 46e SSW IN 1941
 
RECORDS FOR JULY 9
HIGH 98F IN 1912
LOW 47F IN 1909
PRECIP 3.74 INCHES IN 1921
WIND 46 MPH NW IN 1992 

TODAY'S REPORT PREPARED By: Andrew Hoell