054  
CDUS41 KLWX 142123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
523 PM EDT THU OCT 14 2021  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 14 2021
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 80 2:33 PM 86 1975 69 11 75  
MINIMUM 54 5:58 AM 23 1988 46 8 43  
AVERAGE 67 57 10 59  
 
PRECIPITATION (IN)  
TODAY 0.00 1.61 1995 0.11 -0.11 0.00  
MONTH TO DATE 0.03 1.69 -1.66 1.32  
SINCE SEP 1 4.75 5.63 -0.88 3.60  
SINCE JAN 1 29.34 34.85 -5.51 37.82  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 8 -8 6  
MONTH TO DATE 5 90 -85 82  
SINCE SEP 1 22 135 -113 143  
SINCE JUL 1 22 136 -114 143  
 
COOLING  
TODAY 2 1 1 0  
MONTH TO DATE 47 19 28 4  
SINCE SEP 1 218 171 47 139  
SINCE JAN 1 1470 1227 243 1391    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 4.8  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 2:00 AM  
LOWEST 43 4:00 PM  
AVERAGE 72  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 88 1989  
MINIMUM TEMPERATURE (F) 46 28 1987  
 
SUNRISE AND SUNSET  
OCTOBER 14 2021.......SUNRISE 7:19 AM EDT SUNSET 6:32 PM EDT  
OCTOBER 15 2021.......SUNRISE 7:20 AM EDT SUNSET 6:31 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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