552  
CDUS41 KLWX 240528  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1226 AM EST TUE JAN 24 2017  
 
   
...............................
 
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JANUARY 23 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 50 241 AM 72 1974 44 6 29  
MINIMUM 39 1159 PM 0 1936 28 11 24  
AVERAGE 45 36 9 27  
 
PRECIPITATION (IN)  
YESTERDAY 0.67 1.79 1998 0.09 0.58 0.97  
MONTH TO DATE 2.65 2.08 0.57 2.68  
SINCE DEC 1 5.26 5.13 0.13 7.52  
SINCE JAN 1 2.65 2.08 0.57 2.68  
 
SNOWFALL (IN)  
YESTERDAY 0.0 11.3 2016 0.2 -0.2  
MONTH TO DATE 0.4 3.8 -3.4  
SINCE JUL 1 0.4 6.6 -6.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 29 -9 38  
MONTH TO DATE 531 667 -136 689  
SINCE DEC 1 1241 1453 -212 1110  
SINCE JUL 1 1728 2148 -420 1645  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 1  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 37 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 47 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 21.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 500 AM  
LOWEST 86 800 PM  
AVERAGE 93  
   
......................................................
 
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 44 73 1950  
MINIMUM TEMPERATURE (F) 29 3 1963  
 
 
SUNRISE AND SUNSET  
JANUARY 24 2017.......SUNRISE 720 AM EST SUNSET 521 PM EST  
JANUARY 25 2017.......SUNRISE 720 AM EST SUNSET 522 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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