BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
  
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, JUNE 12, 2008    
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED
 
Yesterday's high temperature of 85 degrees brought
an end to the 4 day heat wave that began on Saturday
June 7.  The minimum temperature yesterday tied the
record high minimum for the date of 68 degrees which
also occurred on June 11 in 1973 and 1984.
 
Today's observations:
 
8 A.M. EDT
Weather: Clear, few cirrus distant NW, light haze
Temperature: 67F, Dew point: 54F,  Wind: NW at 10G19 kts 
Wind: direction variability W-N
Sea-level pressure: 30.18 inches Hg, rising  
Visibility: 45 miles 
6-hourly minimum temperature: 61F
BHO SA 1155 CLR 45 221/67/54/3110G19/018/ FEW CI DSNT NW 
LGT HZ WND 27V35/ 8/001 51019 10067 20061
 
11 A.M. EDT
Weather: Clear, few cumulus, few cirrus distant N-NE
Temperature: 73F, Dew point: 49F,  Wind: WNW at 12G22 kts,
Wind: direction variability WSW-NW
Sea-level pressure: 30.18 inches Hg, rising
Visibility: 40 miles, light haze
BHO SA 1455 CLR 40 225/73/49/2912G22/018/ FEW CU ALQDS 
FEW CI DSNT N-NE LGT HZ WND 24V32/ 8/101 51004
 
2 P.M. EDT
Weather: Thin scattered cirrus, few cumulus, light haze
Temperature: 75F, Dew point: 42F,  Wind: WNW at 14G22 kts 
Wind: direction variability W-N
Sea-level pressure: 30.18 inches Hg, steady
Visibility: 55 miles
6-hourly max. temperature: 77F
BHO SA 1755 250 -SCT 55 225/75/42/3014G22/018/ FEW CU ALQDS 
LGT HZ WND 26V36/ 8/101 50000 10077 20067
 
WEATHER SUMMARY FOR WEDNESDAY, JUNE 11
 
TEMPERATURE (DEGREES F)
MAX.....85    NORMAL.....74
MIN.....68    NORMAL.....55
MEAN....77    NORMAL.....65
 
DEPARTURE FROM 30-YEAR NORMAL............+12  
TOTAL DEPARTURE FOR THE MONTH............+77 [+6.8 DEGREES/DAY]
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY.............0  DEPARTURE........-3
TOTAL HEATING UNITS FOR THE MONTH............27  DEPARTURE.......-15 
TOTAL HEATING UNITS FOR THE SEASON.........5928  DEPARTURE......-411
TOTAL HEATING UNITS LAST SEASON TO DATE....5869  DIFFERENCE......+59
  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............28 W   AT 12:06 P.M.  
                   AEROVANE.............26 W   AT 12:06 P.M.  
                   ASOS.................26 WNW AT 12:06 P.M.   
                   DAVIS................27 W   AT N/A
FASTEST MILE FOR YESTERDAY..............19 W   AT  8:59 P.M. *
MAXIMUM 2-MINUTE ASOS AVERAGE...........20 WNW AT 11:55 P.M.  
MAXIMUM 2-MINUTE DAVIS AVERAGE..........N/A
                   AVERAGE.............11.9 W
                   ASOS................10.7        
                   DAVIS...............12.8 W [274 deg] 
* last of several occurrences.
 
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..........0.84   DEPARTURE......-0.59
                         ASOS..............0.85   
TOTAL PRECIPITATION FOR THE YEAR..........23.50   DEPARTURE......+0.33
                         ASOS.............25.89 #
# Includes erroneous ASOS precipitation data on 2/13/08.
 
PRELIMINARY CLIMATE SUMMARY FOR JUNE 2008 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane recording wind system gust when significant
TSTM: Thunderstorm day
....: Data not yet available, records not finalized
  
6/1  79/58/69/+7/0/805/89        32 W  
6/2  76/53/65/+3/0/834/92        28 WNW
6/3  84/58/71/+9/0/707/78        28 S 
6/4  66/54/60/-3/0.53/000/00     25 SSW   Aero 23 MPH SSW
6/5  55/51/53/-10/0.11/000/00    31 N     Aero 28 MPH N
6/6  59/51/55/-8/0.13/000/00     21 SSE
6/7  91/55/73/+9/0.07/575/63     45 SW    Aero 46 MPH SW TSTM  
6/8  91/72/82/+18/0/703/77       31 WSW 
6/9  94/71/83/+19/0/794/87       29 W 
6/10 98/72/85/+21/0/.../..       58 W     Aero 58 MPH W
6/11 85/68/77/+12/0/.../..       28 W     Aero 26 MPH W
 
6/12 morning low temp. of 61F; normal low is now 55F 
 
NEW DAILY RECORDS FOR JUNE TO DATE..
 
6/8 -  MINIMUM TEMPERATURE OF 72F EQUALED 
       RECORD HIGH MINIMUM SET IN 1999.  
6/9 -  MAXIMUM TEMPERATURE OF 94F IS NEW RECORD FOR
       THE DATE, PREVIOUS RECORD 92F IN 1984
6/10 - MAXIMUM TEMPERATURE OF 98F IS NEW RECORD FOR
       THE DATE, PREVIOUS RECORD 92F IN 1967,1974,1984
       MINIMUM TEMPERATURE OF 72F IS NEW RECORD HIGH 
       MINIMUM FOR DATE, PREVIOUS RECORD WAS 71F IN 1984
6/11 - MINIMUM TEMPERATURE OF 68F EQUALED
       RECORD HIGH MINIMUM SET IN 1973, 1984.
        
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR JUNE 11
HIGH 92F IN 1973,1984,1997
LOW 40F IN 1972
PRECIP 2.66 INS 1922
PEAK GUST 43e MPH S IN 1945
 
RECORDS FOR JUNE 12
HIGH 92F IN 1973
LOW 40F IN 1906
PRECIP 1.79 INS 1955
PEAK GUST 58 MPH NW IN 1991
 
TODAY'S REPORT PREPARED By: Robert Skilling/Stephanie Radner