228  
CDUS46 KSEW 130827  
CLISEW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
127 AM PDT TUE APR 13 2021  
   
...............................
 
 
   
..THE SEATTLE WA WFO CLIMATE SUMMARY FOR APRIL 12 2021
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1986 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR LAST  
VALUE (LST) VALUE YEAR    
.................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 56 MM 79 2008 57  
MINIMUM 36 MM 35 2005 36  
AVERAGE 46 47  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.89 2017 0.00  
MONTH TO DATE 0.30 0.17  
SINCE OCT 1 29.86 28.21  
SINCE JAN 1 15.54 16.52  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 9.2 3.8  
SINCE JUL 1 9.2 3.8  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 19 18  
MONTH TO DATE 222 201  
SINCE MAR 1 828 826  
SINCE JUL 1 3740 3819  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE MAR 1 0 0  
SINCE JAN 1 0 0    
.................................................
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
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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