958  
CDUS41 KLWX 302123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
423 PM EST FRI NOV 30 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 30 2018
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 45 248 PM 72 1991 51 -6 57  
MINIMUM 30 723 AM 11 1976 31 -1 32  
AVERAGE 38 41 -3 45  
 
PRECIPITATION (IN)  
TODAY 0.02 1.31 2016 0.12 -0.10 0.03  
MONTH TO DATE 7.69 3.41 4.28 1.99  
SINCE SEP 1 17.73 10.58 7.15 6.89  
SINCE JAN 1 60.99 38.58 22.41 39.89  
 
SNOWFALL (IN)  
TODAY 0.0 11.4 1967 0.0 0.0  
MONTH TO DATE 3.0 0.5 2.5  
SINCE JUL 1 3.0 0.5 2.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 27 24 3 20  
MONTH TO DATE 662 559 103 573  
SINCE SEP 1 958 914 44 793  
SINCE JUL 1 958 916 42 794  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 2 -2 1  
SINCE SEP 1 338 162 176 220  
SINCE JAN 1 1522 1178 344 1281    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 2.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 800 AM  
LOWEST 59 100 AM  
AVERAGE 71  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 51 75 2006  
MINIMUM TEMPERATURE (F) 31 4 1967  
 
 
SUNRISE AND SUNSET  
NOVEMBER 30 2018......SUNRISE 709 AM EST SUNSET 448 PM EST  
DECEMBER 1 2018......SUNRISE 709 AM EST SUNSET 448 PM EST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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