394  
CDUS46 KSEW 260827  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
127 AM PDT WED APR 26 2023  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 25 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 59 514 PM 77 1992 61 -2 57  
MINIMUM 44 533 AM 34 1948 45 -1 45  
AVERAGE 52 53 -1 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.59 2020 0.09 -0.09 0.14  
MONTH TO DATE 3.86 2.76 1.10 2.13  
SINCE OCT 1 26.76 32.41 -5.65 37.93  
SINCE JAN 1 11.87 16.47 -4.60 17.83  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0  
MONTH TO DATE T T  
SINCE OCT 1 8.1 9.2  
SINCE JUL 1 8.1 9.2  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 12 1 14  
MONTH TO DATE 460 355 105 455  
SINCE MAR 1 1052 912 140 1007  
SINCE JUL 1 4139 3959 180 4264  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NW (320)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 5.6  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 300 AM  
LOWEST 44 500 PM  
AVERAGE 65  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 82 1947  
2018  
MINIMUM TEMPERATURE (F) 45 32 1948  
 
SUNRISE AND SUNSET  
APRIL 26 2023.........SUNRISE 601 AM PDT SUNSET 814 PM PDT  
APRIL 27 2023.........SUNRISE 559 AM PDT SUNSET 815 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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