509  
CDUS41 KLWX 232125  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
425 PM EST MON NOV 23 2020  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 23 2020
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1960 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 57 3:35 AM 70 1990 54 3 42  
MINIMUM 47 3:59 PM 14 1964 33 14 25  
1984  
AVERAGE 52 44 8 34  
 
PRECIPITATION (IN)  
TODAY 0.06 1.25 1992 0.12 -0.06 0.60  
MONTH TO DATE 2.09 2.61 -0.52 1.18  
SINCE SEP 1 7.91 9.78 -1.87 7.56  
SINCE JAN 1 42.13 37.78 4.35 37.40  
 
SNOWFALL (IN)  
TODAY 0.0 0.3 1995 0.0 0.0 0.0  
2005  
MONTH TO DATE 0.0 0.2 -0.2 T  
SINCE SEP 1 0.0 0.2 -0.2 T  
SINCE JUL 1 0.0 0.2 -0.2 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 13 21 -8 31  
MONTH TO DATE 286 400 -114 533  
SINCE SEP 1 553 754 -201 718  
SINCE JUL 1 553 756 -203 718  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 1 0 1 0  
SINCE SEP 1 154 160 -6 289  
SINCE JAN 1 1406 1176 230 1524    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 15.4  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 2:00 AM  
LOWEST 41 2:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 54 74 1979  
MINIMUM TEMPERATURE (F) 33 9 1989  
 
SUNRISE AND SUNSET  
NOVEMBER 23 2020......SUNRISE 7:02 AM EST SUNSET 4:51 PM EST  
NOVEMBER 24 2020......SUNRISE 7:03 AM EST SUNSET 4:50 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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