207  
CDUS41 KLWX 162126  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
526 PM EDT THU MAY 16 2024  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 16 2024
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 80 3:13 PM 90 1998 75 5 80  
MINIMUM 54 3:15 AM 35 2000 53 1 54  
AVERAGE 67 64 3 67  
 
PRECIPITATION (IN)  
TODAY 0.00 1.97 2014 0.15 -0.15 T  
MONTH TO DATE 2.47 2.37 0.10 0.75  
SINCE MAR 1 8.10 9.34 -1.24 5.62  
SINCE JAN 1 15.55 14.89 0.66 9.25  
 
SNOWFALL (IN)  
TODAY 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  
TODAY 0 4 -4 0  
MONTH TO DATE 45 77 -32 84  
SINCE MAR 1 724 1044 -320 867  
SINCE JUL 1 3688 4554 -866 3831  
 
COOLING  
TODAY 2 3 -1 2  
MONTH TO DATE 44 29 15 16  
SINCE MAR 1 88 51 37 61  
SINCE JAN 1 91 51 40 61    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 8.0  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 4:00 AM  
LOWEST 45 3:00 PM  
AVERAGE 71  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 93 1960  
MINIMUM TEMPERATURE (F) 53 30 1984  
 
SUNRISE AND SUNSET  
MAY 16 2024...........SUNRISE 5:56 AM EDT SUNSET 8:17 PM EDT  
MAY 17 2024...........SUNRISE 5:55 AM EDT SUNSET 8:18 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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