489  
CDUS41 KLWX 022125  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
525 PM EDT THU MAY 2 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 2 2019
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 87 129 PM 88 2018 72 15 88  
2010  
1992  
MINIMUM 54 513 AM 34 1979 47 7 46  
1960  
AVERAGE 71 59 12 67  
 
PRECIPITATION (IN)  
TODAY 0.58 1.39 2016 0.12 0.46 0.00  
MONTH TO DATE 0.58 0.25 0.33 0.00  
SINCE MAR 1 7.95 7.10 0.85 5.34  
SINCE JAN 1 15.41 12.52 2.89 11.73  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 26.5 22.0 4.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 7 -7 0  
MONTH TO DATE 2 14 -12 4  
SINCE MAR 1 884 996 -112 1193  
SINCE JUL 1 4389 4586 -197 4544  
 
COOLING  
TODAY 6 1 5 2  
MONTH TO DATE 6 2 4 2  
SINCE MAR 1 28 22 6 17  
SINCE JAN 1 28 22 6 22    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 0.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 400 AM  
LOWEST 54 1100 AM  
AVERAGE 77  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 92 1965  
MINIMUM TEMPERATURE (F) 47 32 2005  
1963  
 
 
SUNRISE AND SUNSET  
MAY 2 2019...........SUNRISE 611 AM EDT SUNSET 803 PM EDT  
MAY 3 2019...........SUNRISE 610 AM EDT SUNSET 804 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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