774  
CDUS41 KLWX 020524  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
124 AM EDT THU MAY 02 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 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 85 4:35 PM 90 2010 72 13 61  
MINIMUM 59 11:57 PM 33 1996 48 11 46  
AVERAGE 72 60 12 54  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.42 1981 0.14 -0.14 0.00  
MONTH TO DATE 0.00 0.14 -0.14 0.00  
SINCE MAR 1 5.63 7.11 -1.48 4.87  
SINCE JAN 1 13.08 12.66 0.42 8.50  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1963 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 T 4.0 -4.0 T  
SINCE JUL 1 11.7 21.0 -9.3 0.4  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 11  
MONTH TO DATE 0 6 -6 11  
SINCE MAR 1 679 973 -294 794  
SINCE JUL 1 3643 4483 -840 3758  
 
COOLING  
YESTERDAY 7 1 6 0  
MONTH TO DATE 7 1 6 0  
SINCE MAR 1 51 23 28 45  
SINCE JAN 1 54 23 31 45    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 4.4  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 12:00 AM  
LOWEST 25 5:00 PM  
AVERAGE 59  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 88 1992  
2010  
2018  
MINIMUM TEMPERATURE (F) 49 34 1960  
1979  
 
SUNRISE AND SUNSET  
MAY 2 2024...........SUNRISE 6:10 AM EDT SUNSET 8:04 PM EDT  
MAY 3 2024...........SUNRISE 6:09 AM EDT SUNSET 8:05 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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