783  
CDUS41 KLWX 050524  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
124 AM EDT FRI APR 05 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 4 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 56 12:15 PM 85 2011 62 -6 82  
MINIMUM 34 4:52 AM 22 1965 39 -5 54  
2013  
AVERAGE 45 51 -6 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 1.47 1987 0.10 -0.04 0.00  
MONTH TO DATE 1.28 0.44 0.84 0.21  
SINCE MAR 1 5.17 3.94 1.23 1.78  
SINCE JAN 1 12.62 9.49 3.13 5.41  
 
SNOWFALL (IN)  
YESTERDAY T 0.2 1990 0.0 0.0 0.0  
MONTH TO DATE T 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 20 14 6 0  
MONTH TO DATE 59 60 -1 34  
SINCE MAR 1 523 707 -184 604  
SINCE JUL 1 3487 4217 -730 3568  
 
COOLING  
YESTERDAY 0 0 0 3  
MONTH TO DATE 0 0 0 3  
SINCE MAR 1 0 2 -2 4  
SINCE JAN 1 3 2 1 4    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 5.0  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
SLEET  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 6:00 AM  
LOWEST 41 11:00 AM  
AVERAGE 67  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 88 2023  
MINIMUM TEMPERATURE (F) 40 22 1965  
 
SUNRISE AND SUNSET  
APRIL 5 2024.........SUNRISE 6:47 AM EDT SUNSET 7:38 PM EDT  
APRIL 6 2024.........SUNRISE 6:46 AM EDT SUNSET 7:39 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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