920  
CDUS46 KSEW 180117  
CLISEW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
617 PM PDT SUN OCT 17 2021  
   
...............................
 
 
   
..THE SEATTLE WA WFO CLIMATE SUMMARY FOR OCTOBER 17 2021
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1894 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR LAST  
VALUE (LST) VALUE YEAR    
.................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 58 MM 72 2003 57  
MINIMUM 51 MM 37 1905 52  
AVERAGE 55 55  
 
PRECIPITATION (IN)  
TODAY 0.00 1.14 1975 0.04  
MONTH TO DATE 0.80 2.20  
SINCE OCT 1 0.80 2.20  
SINCE JAN 1 23.77 32.45  
 
SNOWFALL (IN)  
TODAY 0.0 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 0.0 0.0  
SINCE JUL 1 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 10 10  
MONTH TO DATE 195 109  
SINCE SEP 1 283 151  
SINCE JUL 1 307 206  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE SEP 1 21 62  
SINCE JAN 1 407 248    
.................................................
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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