269  
CDUS41 KLWX 230523  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1223 AM EST FRI NOV 23 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 22 2018
 
 
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)  
YESTERDAY  
MAXIMUM 39 149 AM 75 2007 55 -16 56  
MINIMUM 26 808 PM 14 2014 34 -8 34  
1964  
AVERAGE 33 44 -11 45  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.54 1991 0.11 -0.11 0.00  
MONTH TO DATE 5.87 2.49 3.38 1.96  
SINCE SEP 1 15.91 9.66 6.25 6.86  
SINCE JAN 1 59.17 37.66 21.51 39.86  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.2 1989 0.0 0.0  
MONTH TO DATE 3.0 0.2 2.8  
SINCE JUL 1 3.0 0.2 2.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 32 21 11 20  
MONTH TO DATE 443 379 64 402  
SINCE SEP 1 739 733 6 622  
SINCE JUL 1 739 735 4 623  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 1  
SINCE SEP 1 338 160 178 220  
SINCE JAN 1 1522 1176 346 1281    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 11.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 59 100 AM  
LOWEST 34 1100 PM  
AVERAGE 47  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 54 70 1990  
MINIMUM TEMPERATURE (F) 33 14 1984  
1964  
 
 
SUNRISE AND SUNSET  
NOVEMBER 23 2018......SUNRISE 701 AM EST SUNSET 451 PM EST  
NOVEMBER 24 2018......SUNRISE 702 AM EST SUNSET 450 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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