903  
CDUS41 KLWX 012129  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
529 PM EDT TUE SEP 1 2015  
 
   
...............................
 
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 1 2015
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2015  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 95 355 PM 99 1980 84 11 95  
1953  
MINIMUM 71 547 AM 50 1890 67 4 76  
AVERAGE 83 76 7 86  
 
PRECIPITATION (IN)  
TODAY 0.00 2.82 1952 0.10 -0.10 0.02  
MONTH TO DATE 0.00 0.10 -0.10 0.02  
SINCE SEP 1 0.00 0.10 -0.10 0.02  
SINCE JAN 1 32.89 26.50 6.39 33.69  
 
SNOWFALL (IN)  
TODAY 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  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 18 11 7 21  
MONTH TO DATE 18 11 7 21  
SINCE SEP 1 18 11 7 21  
SINCE JAN 1 1692 1322 370 1414    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 4.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 300 AM  
LOWEST 36 200 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 101 1980  
MINIMUM TEMPERATURE (F) 67 50 1895  
1892  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 1 2015.....SUNRISE 637 AM EDT SUNSET 739 PM EDT  
SEPTEMBER 2 2015.....SUNRISE 638 AM EDT SUNSET 737 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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