198  
CDUS41 KLWX 190530  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
127 AM EDT FRI OCT 19 2018  
 
   
...............................
 
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR OCTOBER 18 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 59 348 PM 85 1938 68 -9 71  
1881  
MINIMUM 47 1159 PM 34 1876 50 -3 45  
AVERAGE 53 59 -6 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.67 1990 0.11 -0.11 0.00  
MONTH TO DATE 1.72 1.98 -0.26 0.83  
SINCE SEP 1 11.45 5.70 5.75 2.26  
SINCE JAN 1 51.55 32.10 19.45 31.91  
 
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 12 7 5 7  
MONTH TO DATE 40 89 -49 27  
SINCE SEP 1 41 113 -72 33  
SINCE JUL 1 41 113 -72 33  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 124 30 94 84  
SINCE SEP 1 448 232 216 325  
SINCE JAN 1 2051 1543 508 1816    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 9.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 1000 PM  
LOWEST 36 100 PM  
AVERAGE 57  
   
......................................................
 
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 88 1938  
MINIMUM TEMPERATURE (F) 49 30 1880  
 
 
SUNRISE AND SUNSET  
OCTOBER 19 2018.......SUNRISE 722 AM EDT SUNSET 624 PM EDT  
OCTOBER 20 2018.......SUNRISE 723 AM EDT SUNSET 623 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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