628  
CDUS46 KSEW 080827  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
127 AM PDT WED MAY 08 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 7 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 59 356 PM 82 2016 65 -6 62  
MINIMUM 42 538 AM 33 1962 47 -5 49  
AVERAGE 51 56 -5 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.66 1983 0.07 -0.06 0.00  
MONTH TO DATE 0.28 0.49 -0.21 0.78  
SINCE OCT 1 30.83 33.32 -2.49 27.54  
SINCE JAN 1 13.68 17.38 -3.70 12.65  
 
SNOWFALL (IN)  
YESTERDAY MM MM MM 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 0.3 8.1  
SINCE JUL 1 0.3 8.1  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 9 5 9  
MONTH TO DATE 94 70 24 67  
SINCE MAR 1 1063 1039 24 1145  
SINCE JUL 1 3953 4086 -133 4232  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 1 -1 0  
SINCE JAN 1 0 1 -1 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 1200 AM  
LOWEST 40 500 PM  
AVERAGE 61  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 84 1969  
1987  
MINIMUM TEMPERATURE (F) 47 36 1999  
 
SUNRISE AND SUNSET  
MAY 8 2024...........SUNRISE 541 AM PDT SUNSET 831 PM PDT  
MAY 9 2024...........SUNRISE 539 AM PDT SUNSET 833 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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