228  
CDUS46 KSEW 060826  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
126 AM PDT FRI OCT 06 2023  
   
...............................
 
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 5 2023...  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 67 414 PM 82 1980 65 2 64  
MINIMUM 55 1159 PM 38 1974 50 5 53  
AVERAGE 61 57 4 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.26 1981 0.09 -0.09 0.00  
MONTH TO DATE 0.49 0.42 0.07 0.00  
SINCE OCT 1 0.49 0.42 0.07 0.00  
SINCE JAN 1 18.31 23.82 -5.51 25.38  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 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  
YESTERDAY 4 8 -4 6  
MONTH TO DATE 35 37 -2 12  
SINCE SEP 1 143 139 4 47  
SINCE JUL 1 155 194 -39 67  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 5  
SINCE SEP 1 26 30 -4 42  
SINCE JAN 1 378 263 115 386    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION N (20)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 10.7  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 100 AM  
LOWEST 63 300 PM  
AVERAGE 78  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 78 1952  
2014  
MINIMUM TEMPERATURE (F) 49 37 1946  
1955  
 
SUNRISE AND SUNSET  
OCTOBER 6 2023.......SUNRISE 715 AM PDT SUNSET 639 PM PDT  
OCTOBER 7 2023.......SUNRISE 716 AM PDT SUNSET 637 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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