567  
CDUS41 KLWX 020533  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
133 AM EDT TUE SEP 2 2008  
 
...................................  
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 1 2008
 
 
CLIMATE NORMAL PERIOD 1971 TO 2000  
CLIMATE RECORD PERIOD 1962 TO 2008  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 87 323 PM 98 1980 83 4 84  
MINIMUM 57 212 AM 49 1976 60 -3 59  
1970  
AVERAGE 72 72 0 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.76 2006 0.13 -0.13 0.00  
MONTH TO DATE 0.00 0.13 -0.13 0.00  
SINCE SEP 1 0.00 0.13 -0.13 0.00  
SINCE JAN 1 30.88 28.36 2.52 17.64  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 5 -5 0  
 
COOLING  
YESTERDAY 7 7 0 7  
MONTH TO DATE 7 7 0 7  
SINCE SEP 1 7 7 0 7  
SINCE JAN 1 1001 932 69 1272    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 3.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 300 AM  
LOWEST 29 300 PM  
AVERAGE 58  
 
..........................................................  
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 99 1980  
MINIMUM TEMPERATURE (F) 60 44 1970  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 2 2008.....SUNRISE 640 AM EDT SUNSET 738 PM EDT  
SEPTEMBER 3 2008.....SUNRISE 641 AM EDT SUNSET 736 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
 

 
 
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