884  
CDUS41 KLWX 190525  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1225 AM EST WED FEB 19 2025  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 18 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 36 3:36 PM 75 2011 47 -11 51  
MINIMUM 20 11:59 PM -14 1979 27 -7 20  
AVERAGE 28 37 -9 36  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.29 1964 0.10 -0.10 0.00  
MONTH TO DATE 2.42 1.66 0.76 1.23  
SINCE DEC 1 7.76 7.90 -0.14 12.98  
SINCE JAN 1 4.42 4.60 -0.18 7.23  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.5 1964 0.2 -0.2 0.0  
1979  
MONTH TO DATE 4.9 4.8 0.1 1.7  
SINCE DEC 1 15.5 14.5 1.0 11.7  
SINCE JUL 1 15.5 14.8 0.7 11.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 37 28 9 29  
MONTH TO DATE 495 532 -37 407  
SINCE DEC 1 2392 2341 51 1949  
SINCE JUL 1 3060 3241 -181 2720  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 3  
SINCE JAN 1 0 0 0 3    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 42 2:00 AM  
LOWEST 23 4:00 PM  
AVERAGE 33  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 47 71 1997  
MINIMUM TEMPERATURE (F) 27 6 2015  
 
SUNRISE AND SUNSET  
FEBRUARY 19 2025......SUNRISE 6:56 AM EST SUNSET 5:52 PM EST  
FEBRUARY 20 2025......SUNRISE 6:54 AM EST SUNSET 5:53 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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