037  
CDUS46 KSEW 130830  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
130 AM PDT SAT APR 13 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 12 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 57 230 PM 79 2008 58 -1 54  
MINIMUM 45 1159 PM 33 1968 43 2 38  
2022  
AVERAGE 51 50 1 46  
 
PRECIPITATION (IN)  
YESTERDAY T 0.85 2017 0.11 -0.11 0.00  
MONTH TO DATE 0.40 1.41 -1.01 2.37  
SINCE OCT 1 30.06 31.06 -1.00 25.27  
SINCE JAN 1 12.91 15.12 -2.21 10.38  
 
SNOWFALL (IN)  
YESTERDAY MM 0.3 1968 0.0  
MONTH TO DATE 0.0 T  
SINCE OCT 1 0.3 8.1  
SINCE JUL 1 0.3 8.1  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 14 0 19  
MONTH TO DATE 193 184 9 229  
SINCE MAR 1 742 741 1 821  
SINCE JUL 1 3632 3788 -156 3908  
 
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 9 RESULTANT WIND DIRECTION N (0)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 10.2  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 400 AM  
LOWEST 57 1200 PM  
AVERAGE 74  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 75 1980  
MINIMUM TEMPERATURE (F) 43 32 1945  
2022  
 
SUNRISE AND SUNSET  
APRIL 13 2024.........SUNRISE 623 AM PDT SUNSET 757 PM PDT  
APRIL 14 2024.........SUNRISE 621 AM PDT SUNSET 758 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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