137  
CDUS41 KLWX 150622  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
222 AM EDT WED OCT 15 2025  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 14 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 67 4:02 PM 86 1975 69 -2 68  
MINIMUM 55 11:35 PM 23 1988 46 9 44  
AVERAGE 61 57 4 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.09 1.61 1995 0.11 -0.02 0.00  
MONTH TO DATE 0.43 1.69 -1.26 0.13  
SINCE SEP 1 1.65 5.63 -3.98 3.40  
SINCE JAN 1 26.29 34.85 -8.56 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 4 8 -4 9  
MONTH TO DATE 57 90 -33 51  
SINCE SEP 1 64 135 -71 63  
SINCE JUL 1 66 136 -70 65  
 
COOLING  
YESTERDAY 0 1 -1 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 17 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 11.4  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 12:00 AM  
LOWEST 61 5:00 PM  
AVERAGE 77  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 88 1989  
MINIMUM TEMPERATURE (F) 46 28 1987  
 
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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