169  
CDUS41 KLWX 260526  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
126 AM EDT SUN MAY 26 2024  
   
...............................  
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 25 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 89 2:42 PM 92 1991 77 12 73  
MINIMUM 62 4:43 AM 36 1967 56 6 48  
AVERAGE 76 66 10 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.68 1.76 1997 0.16 0.52 0.00  
MONTH TO DATE 3.89 3.80 0.09 1.04  
SINCE MAR 1 9.52 10.77 -1.25 5.91  
SINCE JAN 1 16.97 16.32 0.65 9.54  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 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 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 4  
MONTH TO DATE 47 104 -57 100  
SINCE MAR 1 726 1071 -345 883  
SINCE JUL 1 3690 4581 -891 3847  
 
COOLING  
YESTERDAY 11 4 7 0  
MONTH TO DATE 104 59 45 20  
SINCE MAR 1 148 81 67 65  
SINCE JAN 1 151 81 70 65    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 4:00 AM  
LOWEST 42 1:00 PM  
AVERAGE 68  
   
......................................................  
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 92 2007  
2021  
MINIMUM TEMPERATURE (F) 56 38 1967  
 
SUNRISE AND SUNSET  
MAY 26 2024...........SUNRISE 5:49 AM EDT SUNSET 8:25 PM EDT  
MAY 27 2024...........SUNRISE 5:48 AM EDT SUNSET 8:26 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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