917  
CDUS41 KLWX 310521  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
121 AM EDT THU JUL 31 2014  
 
   
...............................
 
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JULY 30 2014
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2014  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 80 426 PM 99 1953 88 -8 85  
MINIMUM 60 553 AM 56 1914 71 -11 66  
AVERAGE 70 80 -10 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 4.25 1878 0.12 -0.12 0.00  
MONTH TO DATE 4.68 3.61 1.07 4.43  
SINCE JUN 1 7.99 7.39 0.60 14.40  
SINCE JAN 1 30.28 23.35 6.93 26.98  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 6 -6 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 5 15 -10 11  
MONTH TO DATE 440 445 -5 499  
SINCE JUN 1 812 759 53 850  
SINCE JAN 1 981 893 88 1035    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 6.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 72 600 AM  
LOWEST 37 1100 AM  
AVERAGE 55  
   
......................................................
 
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 103 1954  
MINIMUM TEMPERATURE (F) 71 52 1895  
 
 
SUNRISE AND SUNSET  
JULY 31 2014..........SUNRISE 608 AM EDT SUNSET 820 PM EDT  
AUGUST 1 2014........SUNRISE 609 AM EDT SUNSET 819 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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