602  
CDUS46 KSEW 010116  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
616 PM PDT FRI MAY 31 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 31 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 72 408 PM 90 1964 69 3 64  
MINIMUM 47 417 AM 35 1953 51 -4 50  
AVERAGE 60 60 0 57  
 
PRECIPITATION (IN)  
TODAY 0.00 0.97 1977 0.05 -0.05 T  
MONTH TO DATE 1.54 1.88 -0.34 0.93  
SINCE OCT 1 32.09 34.71 -2.62 27.69  
SINCE JAN 1 14.94 18.77 -3.83 12.80  
 
SNOWFALL (IN)  
TODAY 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  
TODAY 5 6 -1 8  
MONTH TO DATE 292 242 50 156  
SINCE MAR 1 1261 1211 50 1234  
SINCE JUL 1 4151 4258 -107 4321  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 7 9 -2 35  
SINCE MAR 1 7 10 -3 35  
SINCE JAN 1 7 10 -3 35    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION N (0)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 7.2  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 300 AM  
LOWEST 32 400 PM  
AVERAGE 55  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 94 1970  
MINIMUM TEMPERATURE (F) 51 40 1951  
 
SUNRISE AND SUNSET  
MAY 31 2024...........SUNRISE 516 AM PDT SUNSET 858 PM PDT  
JUNE 1 2024..........SUNRISE 516 AM PDT SUNSET 859 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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