891  
CDUS41 KLWX 251418  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
918 AM EST SUN NOV 25 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 24 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 43 550 PM 74 1979 54 -11 55  
MINIMUM 31 115 AM 9 1989 33 -2 24  
AVERAGE 37 44 -7 40  
 
PRECIPITATION (IN)  
YESTERDAY 1.58 1.81 1971 0.11 1.47 0.00  
MONTH TO DATE 7.45 2.72 4.73 1.96  
SINCE SEP 1 17.49 9.89 7.60 6.86  
SINCE JAN 1 60.75 37.89 22.86 39.86  
 
SNOWFALL (IN)  
YESTERDAY T 2.9 1971 0.1 -0.1  
MONTH TO DATE 3.0 0.3 2.7  
SINCE JUL 1 3.0 0.3 2.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 28 22 6 25  
MONTH TO DATE 506 422 84 457  
SINCE SEP 1 802 776 26 677  
SINCE JUL 1 802 778 24 678  
 
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 W (290)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 6.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
LT FREEZING RAIN  
SNOW  
SLEET  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 900 AM  
LOWEST 59 1200 AM  
AVERAGE 80  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 54 77 1979  
MINIMUM TEMPERATURE (F) 33 15 1970  
 
 
SUNRISE AND SUNSET  
NOVEMBER 25 2018......SUNRISE 703 AM EST SUNSET 450 PM EST  
NOVEMBER 26 2018......SUNRISE 704 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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