BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, JUNE 9, 2007   
ALL TIMES ARE IN EASTERN STANDARD TIME

COOL, SHOWERY AND FOGGY TODAY...
Dense fog has covered the summit all day today with drizzle
and a few light rain showers adding up to 0.02 inch through 
2 PM EDT.
  
Today's observations:

7 A.M.   
Weather: Sky obscured with dense fog and light drizzle 
Temperature: 58F, Dew point: 58F, Wind: NNE at 8 kt  
Sea-level pressure: 29.92 inches Hg, rising 
Visibility: 1/16 mile    
6-hour min temp. 58F   
BHO SA 1155 W1 X 1/16L-F 133/58/58/0308/992/ WND LGT/ 8//// 
51020 6000/ 10063 20058
     
10 A.M. 
Weather: Sky obscured with dense fog and light drizzle
Temperature: 58F, Dew point: 58F, Wind: NNW at 9 kt 
Sea-level pressure: 29.96 inches Hg, rising
Visibility: 1/8 mile
3-hourly precipitation: 0.02 inch    
BHO SA 1455 W2 X 1/8L-F 153/58/58/3409/996/ 8//// 51014 6002/
 
1 P.M.   
Weather: Sky obscured with dense fog
Temperature: 56F, Dew point: 56F, Wind: NNE at 8 kt  
Sea-level pressure: 29.97 inches Hg, rising 
Visibility: 1/16 mile   
6-hour max temp. 59F
6-hourly precipitation: 0.02 inch  
BHO SA 1755 W1 X 1/16F 156/56/56/0308/997/ RW-E05L-E05 WND LGT/ 
8//// 53003 6002/ 10059 20056


WEATHER SUMMARY FOR FRIDAY, JUNE 8  

TEMPERATURE (DEGREES F)
MAX.....78    NORMAL.....74 
MIN.....58    NORMAL.....54
MEAN....68    NORMAL.....64
DEPARTURE FROM 30-YEAR NORMAL...........+4
TOTAL DEPARTURE FOR THE MONTH..........+14 (+1.6 DEGREES/DAY)
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............0  DEPARTURE.........-3
TOTAL HEATING UNITS FOR THE MONTH...........27  DEPARTURE.........-6  
TOTAL HEATING UNITS FOR THE SEASON........5858  DEPARTURE.......-472
TOTAL HEATING UNITS LAST SEASON TO DATE...5769  DIFFERENCE.......+89  

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............20 WSW AT 12:13 A.M.
                   AEROVANE.............16 WSW AT 12:13 A.M.
                   ASOS.................N/A  #
                   DAVIS................N/A 
FASTEST MILE FOR YESTERDAY..............15 WSW AT 12:10 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE...........N/A  # 
MAXIMUM 2-MINUTE DAVIS AVERAGE..........15  SW AT 12:05 A.M.
AVERAGE WIND SPEED AND DIRECTION.......8.3  SW 
                   ASOS.................N/A  #
                   DAVIS...............7.4 SSE [166 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...TRACE  DEPARTURE.....-0.13
                         ASOS..............0.00  
TOTAL PRECIPITATION FOR THE MONTH..........1.81  DEPARTURE.....+0.77 
                         ASOS..............1.83    
TOTAL PRECIPITATION FOR THE YEAR..........25.97  DEPARTURE.....+3.19
                         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
6/8  78/58/68/+4/0/.../..           20 WSW

6/9  morning low temp. 57 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 9
HIGH 92F IN 1984
LOW 40F IN 1980
PRECIP 2.08 INCHES IN 1931
PEAK GUST 67 MPH NW IN 1973

RECORDS FOR JUNE 10
HIGH 92F IN 1967,1974,1984
LOW 42F IN 1913,1920
PRECIP 2.51 INCHES IN 1931
PEAK GUST 60e MPH NW IN 1941

TODAY'S REPORT PREPARED By: Mike Iacono   

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