366  
CDUS46 KSEW 220857  
CLISEW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE WA  
156 AM PDT FRI SEP 22 2017  
 
   
...............................
 
 
   
..THE SEATTLE WA WFO CLIMATE SUMMARY FOR SEPTEMBER 21 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1986 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR LAST  
VALUE (LST) VALUE YEAR    
................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 64 MM 83 2014 67  
MINIMUM 51 MM 44 2002 50  
AVERAGE 58 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 0.17 2006 0.00  
MONTH TO DATE 0.96 1.53  
SINCE OCT 1 49.54 43.71  
SINCE JAN 1 27.82 23.31  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 6  
MONTH TO DATE 48 64  
SINCE SEP 1 48 64  
SINCE JUL 1 51 77  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 61 0  
SINCE SEP 1 61 0  
SINCE JAN 1 333 255    
................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED MM  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab WA Page Main Text Page