156  
CDUS41 KLWX 152128  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
528 PM EDT WED OCT 15 2025  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 15 2025
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 73 3:05 PM 88 1989 68 5 57  
MINIMUM 54 6:29 AM 28 1987 46 8 41  
AVERAGE 64 57 7 49  
 
PRECIPITATION (IN)  
TODAY 0.00 1.30 2014 0.12 -0.12 T  
MONTH TO DATE 0.43 1.81 -1.38 0.13  
SINCE SEP 1 1.65 5.75 -4.10 3.40  
SINCE JAN 1 26.29 34.97 -8.68 29.18  
 
SNOWFALL (IN)  
TODAY 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  
TODAY 1 9 -8 16  
MONTH TO DATE 58 99 -41 67  
SINCE SEP 1 65 144 -79 79  
SINCE JUL 1 67 145 -78 81  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 12 19 -7 14  
SINCE SEP 1 182 171 11 151  
SINCE JAN 1 1330 1227 103 1565    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 9.3  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 2:00 AM  
LOWEST 38 3:00 PM  
AVERAGE 64  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 85 1989  
MINIMUM TEMPERATURE (F) 45 30 1986  
 
SUNRISE AND SUNSET  
OCTOBER 15 2025.......SUNRISE 7:20 AM EDT SUNSET 6:31 PM EDT  
OCTOBER 16 2025.......SUNRISE 7:21 AM EDT SUNSET 6:29 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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