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

DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, SEPTEMBER 4, 2008    
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED 


Today's observations:

8 A.M. EDT
Weather: Clear, few cirrus
Temperature: 66F, Dew point: 63F, Wind: SW at 10 kts
Wind: Direction variability S-WNW
Sea-level pressure: 29.96 inches Hg, rising
Visibility: 10 miles, thin fog
6-hourly minimum temperature: 62F
24-hourly rainfall: 0.00
BHO SA 1155 CLR 10 146/66/63/2310/996/ FEW CI THN FG WND 17V29/
8/001 53010 10066 20062 

11 A.M. EDT
Weather: Clear, few cumulus SW, few cirrus W-N-E
Temperature: 80F, Dew point: 62F, Wind: SSW @ 12 kts
Sea-level pressure: 29.97 inches of Hg, rising
Visibility: 15 miles, hazy 
BHO SA 1455 CLR 15 149/80/62/2012/997/ FEW CU SW FEW CI W-N-E HZY/
8/101 50003

2 P.M. EDT
Weather: Clear, few cumulus all quadrants
Temperature: 83F, Dew point: 61F, Wind: SW @ 09G18 kts,
Sea-level pressure: 29.98 ins. Hg, rising
Visibility: 12 miles, hazy 
6-hourly max. temp. 83F
6-hourly rainfall: None
BHO SA 1755 CLR 12 151/83/61/2309G18/998/ FEW CU ALQDS HZY/
8/100 51002 10083 20066
 

WEATHER SUMMARY FOR WEDNESDAY, SEPTEMBER 3

TEMPERATURE (DEGREES F)

MAX.....75    NORMAL.....75
MIN.....57    NORMAL.....57
MEAN....66    NORMAL.....66

DEPARTURE FROM 30-YEAR NORMAL..............0
TOTAL DEPARTURE FOR THE MONTH.............+3 (+0.8 PER DAY)
 

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............22 N   AT  9:20 A.M.   
                   AEROVANE.............20 SSE AT 11:33 P.M. *             
                   ASOS.................21 S   AT 10:24 P.M.    
                   DAVIS................22 SSE AT 11:13 P.M.   
FASTEST MILE FOR YESTERDAY............. 16 SSE AT 10:23 P.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE...........16 S   AT 11:13 P.M.    
MAXIMUM 2-MINUTE DAVIS AVERAGE..........16 ENE AT 11:54 A.M.  
                   AVERAGE.............9.4 NW     
                   ASOS................9.6 
                   DAVIS...............9.4 NNE [024 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  SEPT..............0.00   DEPARTURE.......-0.39
                         ASOS..............0.00  
TOTAL PRECIPITATION FOR THE YEAR..........35.46   DEPARTURE.......+1.60 
                         ASOS.............38.00 #
#  Includes erroneous ASOS precipitation data on 2/13/08.

 
PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 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 (thunder heard some time during day)
....: Data not yet available, records not finalized

 
9/1  81/57/69/+2/0.00/787/100    29 NW
9/2  74/60/67/+1/0.00/604/77     27 N 
9/3  75/57/66/0/0.00/766/98      22 N    Aero 20 MPH SSE

9/4  our morning low temp: 62F; normal low is now 57F

 
NEW DAILY RECORDS FOR SEPTEMBER

None to date..

 
DAILY EXTREMES

Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR SEPTEMBER 4
HIGH 90F IN 1953, 1973
LOW 46F IN 1987
PRECIP 3.22 INCHES IN 1922
PEAK GUST 47 MPH SE IN 1966

RECORDS FOR SEPTEMBER 5
HIGH 90F IN 1971
LOW 45F IN 1906
PRECIP 1.37 INCHES IN 1907
PEAK GUST 46 MPH NW IN 1994
 

TODAY'S REPORT PREPARED By: Stephanie Radner