593  
CDUS46 KSEW 250842  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
142 AM PDT SAT MAY 25 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 24 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 57 545 PM 89 1992 68 -11 71  
MINIMUM 48 430 AM 37 1950 50 -2 54  
1975  
AVERAGE 53 59 -6 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.07 0.65 1998 0.05 0.02 0.00  
MONTH TO DATE 1.27 1.48 -0.21 0.93  
SINCE OCT 1 31.82 34.31 -2.49 27.69  
SINCE JAN 1 14.67 18.37 -3.70 12.80  
 
SNOWFALL (IN)  
YESTERDAY 0.0 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 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 6 6 2  
MONTH TO DATE 231 200 31 119  
SINCE MAR 1 1200 1169 31 1197  
SINCE JUL 1 4090 4216 -126 4284  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 7 0 7 31  
SINCE MAR 1 7 1 6 31  
SINCE JAN 1 7 1 6 31    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 8.1  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 700 PM  
LOWEST 62 500 PM  
AVERAGE 74  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 87 1947  
MINIMUM TEMPERATURE (F) 50 37 1964  
 
SUNRISE AND SUNSET  
MAY 25 2024...........SUNRISE 521 AM PDT SUNSET 852 PM PDT  
MAY 26 2024...........SUNRISE 520 AM PDT SUNSET 853 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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