354  
CDUS46 KSEW 070829  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
129 AM PDT SUN APR 07 2024  
   
...............................  
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 6 2024  
 
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)  
YESTERDAY  
MAXIMUM 47 702 PM 78 2007 57 -10 53  
MINIMUM 43 1159 PM 31 1956 42 1 44  
AVERAGE 45 50 -5 49  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.63 1963 0.12 -0.09 0.45  
MONTH TO DATE 0.14 0.72 -0.58 0.81  
SINCE OCT 1 29.80 30.37 -0.57 23.71  
SINCE JAN 1 12.65 14.43 -1.78 8.82  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1991 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  
YESTERDAY 20 15 5 16  
MONTH TO DATE 98 95 3 127  
SINCE MAR 1 647 652 -5 719  
SINCE JUL 1 3537 3699 -162 3806  
 
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 10 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 10.3  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 800 PM  
LOWEST 58 1000 AM  
AVERAGE 72  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 78 1996  
2016  
MINIMUM TEMPERATURE (F) 42 29 1952  
 
SUNRISE AND SUNSET  
APRIL 7 2024.........SUNRISE 635 AM PDT SUNSET 748 PM PDT  
APRIL 8 2024.........SUNRISE 633 AM PDT SUNSET 750 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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