161  
CDUS41 KLWX 030525  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
124 AM EDT WED SEP 3 2008  
 
...................................  
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 2 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 90 334 PM 99 1980 83 7 86  
MINIMUM 56 439 AM 44 1970 60 -4 57  
AVERAGE 73 72 1 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.97 1969 0.13 -0.13 0.00  
MONTH TO DATE 0.00 0.26 -0.26 0.00  
SINCE SEP 1 0.00 0.26 -0.26 0.00  
SINCE JAN 1 30.88 28.49 2.39 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 8 7 1 7  
MONTH TO DATE 15 14 1 14  
SINCE SEP 1 15 14 1 14  
SINCE JAN 1 1009 939 70 1279    
..............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 3.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 200 AM  
LOWEST 31 200 PM  
AVERAGE 62  
 
..........................................................  
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 96 1993  
MINIMUM TEMPERATURE (F) 60 45 1967  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 3 2008.....SUNRISE 641 AM EDT SUNSET 736 PM EDT  
SEPTEMBER 4 2008.....SUNRISE 642 AM EDT SUNSET 735 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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