897  
CDUS46 KSEW 120828  
CLISEW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
128 AM PDT FRI MAY 12 2023  
   
...............................
 
 
   
..THE SEATTLE WA WFO CLIMATE SUMMARY FOR MAY 11 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1894 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR LAST  
VALUE (LST) VALUE YEAR    
.................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 73 MM 87 1971 62  
MINIMUM 48 MM 38 1916 44  
1985  
AVERAGE 61 53  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.55 1896 T  
MONTH TO DATE 0.79 1.20  
SINCE OCT 1 28.45 34.41  
SINCE JAN 1 13.44 17.38  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 2.6 5.3  
SINCE JUL 1 2.6 5.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 4 12  
MONTH TO DATE 94 139  
SINCE MAR 1 1167 1165  
SINCE JUL 1 4176 4265  
 
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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