199  
CDUS41 KLWX 050522  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1222 AM EST MON NOV 5 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 4 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 57 340 PM 81 2003 62 -5 57  
1974  
MINIMUM 32 554 AM 21 1966 38 -6 46  
AVERAGE 45 50 -5 52  
 
PRECIPITATION (IN)  
YESTERDAY T 1.95 1970 0.12 -0.12 0.60  
MONTH TO DATE 1.35 0.48 0.87 0.60  
SINCE SEP 1 11.39 7.65 3.74 5.50  
SINCE JAN 1 54.65 35.65 19.00 38.50  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1991 0.0 0.0  
1970  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 15 5 13  
MONTH TO DATE 40 58 -18 36  
SINCE SEP 1 336 412 -76 256  
SINCE JUL 1 336 414 -78 257  
 
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 14 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 4.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 200 AM  
LOWEST 47 1200 PM  
AVERAGE 74  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 80 2003  
MINIMUM TEMPERATURE (F) 38 19 1991  
 
 
SUNRISE AND SUNSET  
NOVEMBER 5 2018......SUNRISE 641 AM EST SUNSET 505 PM EST  
NOVEMBER 6 2018......SUNRISE 643 AM EST SUNSET 504 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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