513  
CDUS41 KLWX 190624  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
224 AM EDT SUN APR 19 2026  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 18 2026  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 84 3:04 PM 90 1976 68 16 80  
MINIMUM 51 5:30 AM 29 2018 44 7 41  
AVERAGE 68 56 12 61  
 
PRECIPITATION (IN)  
YESTERDAY T 0.59 1978 0.11 -0.11 0.00  
MONTH TO DATE 0.72 1.98 -1.26 1.37  
SINCE MAR 1 3.57 5.48 -1.91 2.79  
SINCE JAN 1 9.37 11.03 -1.66 7.21  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 2022 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE MAR 1 1.0 4.0 -3.0 0.0  
SINCE JUL 1 13.6 21.0 -7.4 15.5  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 10 -10 4  
MONTH TO DATE 93 226 -133 217  
SINCE MAR 1 535 873 -338 667  
SINCE JUL 1 4164 4383 -219 3989  
 
COOLING  
YESTERDAY 3 1 2 0  
MONTH TO DATE 61 7 54 2  
SINCE MAR 1 77 9 68 19  
SINCE JAN 1 77 9 68 19    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 7.1  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 6:00 AM  
LOWEST 38 2:00 PM  
AVERAGE 68  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 91 2002  
MINIMUM TEMPERATURE (F) 44 27 1990  
2001  
 
SUNRISE AND SUNSET  
APRIL 19 2026.........SUNRISE 6:27 AM EDT SUNSET 7:51 PM EDT  
APRIL 20 2026.........SUNRISE 6:26 AM EDT SUNSET 7:52 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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