839  
CDUS41 KLWX 070629  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
229 AM EDT TUE OCT 07 2025  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 6 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 84 2:23 PM 89 2013 72 12 77  
MINIMUM 53 6:27 AM 28 1968 49 4 48  
AVERAGE 69 60 9 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.05 2006 0.13 -0.13 0.00  
MONTH TO DATE 0.00 0.76 -0.76 0.13  
SINCE SEP 1 1.22 4.70 -3.48 3.40  
SINCE JAN 1 25.86 33.92 -8.06 29.18  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 2  
MONTH TO DATE 17 31 -14 2  
SINCE SEP 1 24 76 -52 14  
SINCE JUL 1 26 77 -51 16  
 
COOLING  
YESTERDAY 4 1 3 0  
MONTH TO DATE 4 11 -7 14  
SINCE SEP 1 174 163 11 151  
SINCE JAN 1 1322 1219 103 1565    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 12:00 AM  
LOWEST 47 3:00 PM  
AVERAGE 74  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 91 2007  
MINIMUM TEMPERATURE (F) 49 31 1988  
 
SUNRISE AND SUNSET  
OCTOBER 7 2025.......SUNRISE 7:12 AM EDT SUNSET 6:43 PM EDT  
OCTOBER 8 2025.......SUNRISE 7:13 AM EDT SUNSET 6:41 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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