798  
CDUS46 KSEW 050141  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
641 PM PDT THU APR 04 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 4 2024
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 46 459 PM 75 1966 57 -11 51  
MINIMUM 41 349 AM 31 1948 42 -1 35  
AVERAGE 44 49 -5 43  
 
PRECIPITATION (IN)  
TODAY 0.09 2.64 1991 0.12 -0.03 0.00  
MONTH TO DATE 0.11 0.48 -0.37 0.36  
SINCE OCT 1 29.77 30.13 -0.36 23.26  
SINCE JAN 1 12.62 14.19 -1.57 8.37  
 
SNOWFALL (IN)  
TODAY 0.0 T 1975 0.0  
MONTH TO DATE 0.0 T  
SINCE OCT 1 0.3 8.1  
SINCE JUL 1 0.3 8.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 21 16 5 22  
MONTH TO DATE 60 64 -4 91  
SINCE MAR 1 609 621 -12 683  
SINCE JUL 1 3499 3668 -169 3770  
 
COOLING  
TODAY 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 10 RESULTANT WIND DIRECTION N (360)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 10.4  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 1100 AM  
LOWEST 65 400 PM  
AVERAGE 72  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 73 1966  
1977  
MINIMUM TEMPERATURE (F) 42 29 1975  
 
SUNRISE AND SUNSET  
APRIL 4 2024.........SUNRISE 641 AM PDT SUNSET 744 PM PDT  
APRIL 5 2024.........SUNRISE 639 AM PDT SUNSET 746 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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