BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, JUNE 6, 2007   
ALL TIMES ARE IN EASTERN STANDARD TIME
 
MUCH COOLER AND DRIER TODAY WITH HIGH CLOUDS
 
The showers and thunderstorms of yesterday were all to our west and 
northwest so no rain here.  Cooler and drier air moved in overnight
with our low of 51 degrees this morning actually a few degrees 
below normal. 
  
Today's observations:
 
7 A.M.   
Weather: High thin broken clouds  
Temperature: 54F, Dew point: 44F, Wind: WNW at 10 kts 
Sea-level pressure: 29.75 inches Hg, inches  
Visibility: 75 miles    
6-hour min temp. 51F   
BHO SA 1155 90 SCT 220 SCT 250 –BKN 300 –BKN 75 074/54/44/2910/975/ 
PTCHS AC S-NW FEW PTCHS DENSE CI WND 26V32/ 8/032 51019 10059 20051 
    
10 A.M. 
Weather: Overcast with dense high clouds, clearing west   
Temperature: 57F, Dew point: 45F, Wind: W at 11 kts
Sea-level pressure: 29.80 inches Hg, rising
Visibility: 75 miles   
BHO SA 1455 E200 OVC 75 090/57/45/2711/980/ 
BINOVC/LINE OF CLRG SW-NW/ DENSE CI ALQDS/ 8/012 51016
 
 
WEATHER SUMMARY FOR TUESDAY, JUNE 5 
 
TEMPERATURE (DEGREES F)
MAX.....78    NORMAL.....73 
MIN.....57    NORMAL.....53
MEAN....68    NORMAL.....63
DEPARTURE FROM 30-YEAR NORMAL..........+ 5
TOTAL DEPARTURE FOR THE MONTH..........+20 (+3.8 DEGREES/DAY)
 
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............0  DEPARTURE.........-4
TOTAL HEATING UNITS FOR THE MONTH...........14  DEPARTURE.........-8  
TOTAL HEATING UNITS FOR THE SEASON........5845  DEPARTURE.......-474
TOTAL HEATING UNITS LAST SEASON TO DATE...5743  DIFFERENCE......+102 
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............38  S   AT 12:28 P.M.   
                   AEROVANE.............37  S   AT 12:33 P.M.    
                   ASOS.................37  S   AT 12:33 P.M.    
                   DAVIS................39 SSE  AT 12:28 P.M.   
FASTEST MILE FOR YESTERDAY..............26  S   AT 12:33 P.M.    
MAXIMUM 2-MINUTE ASOS AVERAGE...........26  S   AT 12:36 P.M.        
MAXIMUM 2-MINUTE DAVIS AVERAGE..........26  SSE AT 12:33 P.M.   
AVERAGE WIND SPEED AND DIRECTION.......14.6  
                   ASOS................14.5   
                   DAVIS...............13.8 S [170 deg]
 
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.....+1.16 
                         ASOS..............1.83    
TOTAL PRECIPITATION FOR THE YEAR..........25.97  DEPARTURE.....+3.58
                         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  morning low temp. 51 deg; normal now 53 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 6
HIGH 95F IN 1925
LOW 42F IN 1885, 1894, 1920, 1945
PRECIP 3.61 INS IN 2000
PEAK GUST 58 MPH NE IN 2000
 
RECORDS FOR JUNE 7
HIGH 93F IN 1999
LOW 40F IN 1932
PRECIP 4.01 INS IN 2006
PEAK GUST 58 MPH NE IN 1982
 
TODAY'S REPORT PREPARED By: Robert Skilling