146  
CDUS41 KLWX 150527  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
127 AM EDT SUN SEP 15 2019  
 
   
...............................
 
 
 
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 14 2019...  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 81 459 PM 95 2016 80 1 78  
MINIMUM 67 355 AM 46 1911 63 4 72  
AVERAGE 74 72 2 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 4.07 1966 0.13 -0.13 T  
MONTH TO DATE 0.11 1.61 -1.50 5.77  
SINCE SEP 1 0.11 1.61 -1.50 5.77  
SINCE JAN 1 30.89 28.01 2.88 45.87  
 
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 SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 9 7 2 10  
MONTH TO DATE 181 127 54 193  
SINCE SEP 1 181 127 54 193  
SINCE JAN 1 1823 1438 385 1796    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 8.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 1100 PM  
LOWEST 58 100 PM  
AVERAGE 70  
   
......................................................
 
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 97 1930  
1927  
MINIMUM TEMPERATURE (F) 63 43 1902  
1899  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 15 2019.....SUNRISE 649 AM EDT SUNSET 717 PM EDT  
SEPTEMBER 16 2019.....SUNRISE 650 AM EDT SUNSET 715 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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