469  
CDUS41 KLWX 140523  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1223 AM EST TUE NOV 14 2023  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 13 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 57 4:00 PM 75 1964 58 -1 50  
MINIMUM 27 7:05 AM 19 2019 36 -9 39  
AVERAGE 42 47 -5 45  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.87 2012 0.10 -0.10 0.00  
MONTH TO DATE 0.26 1.39 -1.13 1.15  
SINCE SEP 1 7.58 8.98 -1.40 6.67  
SINCE JAN 1 26.80 38.20 -11.40 34.17  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1995 0.0 0.0 0.0  
2012  
2014  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 T 0.0 0.0 0.0  
SINCE JUL 1 T 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 23 18 5 20  
MONTH TO DATE 205 212 -7 86  
SINCE SEP 1 411 541 -130 427  
SINCE JUL 1 411 542 -131 427  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 22  
SINCE SEP 1 265 174 91 198  
SINCE JAN 1 1380 1230 150 1376    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 3.7  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 12:00 AM  
LOWEST 45 3:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 80 1985  
MINIMUM TEMPERATURE (F) 36 13 1986  
 
SUNRISE AND SUNSET  
NOVEMBER 14 2023......SUNRISE 6:51 AM EST SUNSET 4:57 PM EST  
NOVEMBER 15 2023......SUNRISE 6:52 AM EST SUNSET 4:56 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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