218  
CDUS46 KSEW 050927  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
127 AM PST SUN NOV 05 2023  
   
...............................
 
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR NOVEMBER 4 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 63 1255 PM 74 1949 55 8 57  
MINIMUM 52 1159 PM 30 1957 43 9 42  
2002  
2003  
AVERAGE 58 49 9 50  
 
PRECIPITATION (IN)  
YESTERDAY 1.14 1.91 2006 0.19 0.95 0.21  
MONTH TO DATE 2.75 0.76 1.99 0.68  
SINCE OCT 1 5.64 4.67 0.97 3.19  
SINCE JAN 1 23.46 28.07 -4.61 28.57  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1973 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 7 16 -9 15  
MONTH TO DATE 45 64 -19 81  
SINCE SEP 1 438 515 -77 349  
SINCE JUL 1 450 570 -120 369  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 26 30 -4 50  
SINCE JAN 1 378 263 115 394    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 11.1  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 700 AM  
LOWEST 72 100 PM  
AVERAGE 83  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 54 65 1949  
1960  
MINIMUM TEMPERATURE (F) 43 31 1961  
1973  
2003  
 
SUNRISE AND SUNSET  
NOVEMBER 5 2023......SUNRISE 659 AM PST SUNSET 446 PM PST  
NOVEMBER 6 2023......SUNRISE 700 AM PST SUNSET 445 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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