BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, SEPTEMBER 5, 2008    
ALL TIMES ARE IN EASTERN STANDARD TIME UNLESS NOTED 
 
Today's observations:
 
8 A.M. EDT
Weather: Obscurement with fog
Temperature: 68F, Dew point: 68F,  Wind: S at 8 kts
Sea-level pressure: 30.11 inches Hg, rising
Visibility: 1/16 miles, variable 0-1/16 mile, dense fog
6-hourly minimum temperature: 67F
24-hourly rainfall: 0.00
BHO SA 1155 W1 X 1/16VF 195/68/68/1708/011/ VSBY 0V1/16/
8//// 51012 10070 20067
 
11 A.M. EDT
Weather: Clear, few cirrus
Temperature: 80F, Dew point: 67F, Wind: S at 10 kts
Wind: Direction variability SE-SSW
Sea-level pressure: 30.13 inches of Hg, rising
Visibility: 10 miles, hazy 
BHO SA 1455 CLR 10 203/80/67/1810/013/ FEW CI HZY WND 13V21/
8/001 51008
 
2 P.M. EDT
Weather: Clear, few cumulus
Temperature: 85F, Dew point: 66F, Wind: S at 12G20 kts
Sea-level pressure: 30.10 ins. Hg, falling
Visibility: 10 miles, hazy 
6-hourly max. temp. 85F
6-hourly rainfall: None
BHO SA 1755 CLR 10 192/85/66/1912G20/010/ FEW CU HZY/
8/100 58011 10085 20068
 
WEATHER SUMMARY FOR THURSDAY, SEPTEMBER 4
 
TEMPERATURE (DEGREES F)
MAX.....85    NORMAL.....75
MIN.....62    NORMAL.....57
MEAN....74    NORMAL.....66
 
DEPARTURE FROM 30-YEAR NORMAL.............+8
TOTAL DEPARTURE FOR THE MONTH............+11 (+0.6 PER DAY)

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............23 SSW AT 12:22 P.M.   
                   AEROVANE.............23 SSW AT 12:21 P.M.              
                   ASOS.................21 W   AT  1:28 P.M.    
                   DAVIS................24 SSW AT 10:37 A.M.   
FASTEST MILE FOR YESTERDAY............. 16 SSW AT 12:14 P.M. 
MAXIMUM 2-MINUTE ASOS AVERAGE...........15 W   AT  1:29 P.M.    
MAXIMUM 2-MINUTE DAVIS AVERAGE..........18 SSW AT 11:09 A.M.  
                   AVERAGE.............10.3 SW     
                   ASOS................10.4
                   DAVIS...............10.9 SW [216 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  SEPT..............0.00   DEPARTURE.......-0.52
                         ASOS..............0.00  
TOTAL PRECIPITATION FOR THE YEAR..........35.46   DEPARTURE.......+1.47 
                         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  85/62/74/+8/0.00/.../..     23 SSW

9/5  our morning low temp: 67F; 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 5
HIGH 90F IN 1971
LOW 45F IN 1906
PRECIP 1.37 INCHES IN 1907
PEAK GUST 46 MPH NW IN 1994

RECORDS FOR SEPTEMBER 6
HIGH 92F IN 1900
LOW 39F IN 1888
PRECIP 3.19 INCHES IN 1890
PEAK GUST 78e MPH SE IN 1979 (TROPICAL STORM DAVID)

TODAY'S REPORT PREPARED By: Stephanie Radner