422  
CDUS46 KSEW 300119  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
619 PM PDT MON MAY 29 2023  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 29 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 68 459 PM 85 1973 69 -1 56  
MINIMUM 48 608 AM 35 1951 51 -3 48  
AVERAGE 58 60 -2 52  
 
PRECIPITATION (IN)  
TODAY 0.00 1.83 1969 0.06 -0.06 0.23  
MONTH TO DATE 0.93 1.77 -0.84 3.82  
SINCE OCT 1 27.69 34.60 -6.91 42.33  
SINCE JAN 1 12.80 18.66 -5.86 22.23  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 8.1 9.2  
SINCE JUL 1 8.1 9.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 7 6 1 13  
MONTH TO DATE 139 230 -91 357  
SINCE MAR 1 1217 1199 18 1439  
SINCE JUL 1 4304 4246 58 4696  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 35 0 35 0  
SINCE MAR 1 35 1 34 0  
SINCE JAN 1 35 1 34 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 4.3  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 200 AM  
LOWEST 54 400 PM  
AVERAGE 74  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 87 1956  
2007  
MINIMUM TEMPERATURE (F) 51 36 1951  
 
SUNRISE AND SUNSET  
MAY 29 2023...........SUNRISE 518 AM PDT SUNSET 855 PM PDT  
MAY 30 2023...........SUNRISE 518 AM PDT SUNSET 856 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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