482  
CDUS41 KLWX 020921  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
521 AM EDT TUE APR 02 2024  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 1 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 60 1:52 PM 85 1978 61 -1 77  
MINIMUM 52 11:59 PM 17 1969 38 14 48  
AVERAGE 56 50 6 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.22 1.64 1973 0.11 0.11 0.21  
MONTH TO DATE 0.22 0.11 0.11 0.21  
SINCE MAR 1 4.11 3.61 0.50 1.78  
SINCE JAN 1 11.56 9.16 2.40 5.41  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.6 1964 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 T 3.9 -3.9 T  
SINCE JUL 1 11.7 20.9 -9.2 0.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 16 -7 2  
MONTH TO DATE 9 16 -7 2  
SINCE MAR 1 473 663 -190 572  
SINCE JUL 1 3437 4173 -736 3536  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 2 -2 1  
SINCE JAN 1 3 2 1 1    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 5.6  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 9:00 AM  
LOWEST 72 12:00 AM  
AVERAGE 81  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 86 1967  
MINIMUM TEMPERATURE (F) 39 21 1964  
 
SUNRISE AND SUNSET  
APRIL 2 2024.........SUNRISE 6:52 AM EDT SUNSET 7:35 PM EDT  
APRIL 3 2024.........SUNRISE 6:50 AM EDT SUNSET 7:36 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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