631  
CDUS41 KLWX 180522  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
122 AM EDT THU APR 18 2019  
 
   
...............................
 
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR APRIL 17 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 71 228 PM 95 2002 67 4 49  
MINIMUM 56 1159 PM 26 1875 48 8 40  
AVERAGE 64 57 7 45  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.74 1910 0.09 -0.09 0.00  
MONTH TO DATE 1.31 1.76 -0.45 2.06  
SINCE MAR 1 5.31 5.24 0.07 3.98  
SINCE JAN 1 12.13 10.67 1.46 9.71  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1905 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 16.9 15.4 1.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 8 -7 20  
MONTH TO DATE 111 183 -72 203  
SINCE MAR 1 672 751 -79 860  
SINCE JUL 1 3558 3859 -301 3650  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 23 8 15 17  
SINCE MAR 1 27 10 17 17  
SINCE JAN 1 27 10 17 21    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 8.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 1100 PM  
LOWEST 44 1200 PM  
AVERAGE 61  
   
......................................................
 
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 95 1976  
MINIMUM TEMPERATURE (F) 48 25 1875  
 
 
SUNRISE AND SUNSET  
APRIL 18 2019.........SUNRISE 628 AM EDT SUNSET 748 PM EDT  
APRIL 19 2019.........SUNRISE 626 AM EDT SUNSET 749 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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