526  
CDUS46 KSEW 190926  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
126 AM PST FRI JAN 19 2024  
   
...............................
 
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 18 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 39 1159 PM 60 2005 48 -9 46  
MINIMUM 34 321 AM 9 1950 38 -4 38  
AVERAGE 37 43 -6 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.38 2.98 1986 0.19 0.19 0.18  
MONTH TO DATE 2.80 3.45 -0.65 2.72  
SINCE OCT 1 19.95 19.39 0.56 17.61  
SINCE JAN 1 2.80 3.45 -0.65 2.72  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.8 2012 0.0  
MONTH TO DATE T 0.0  
SINCE OCT 1 T 5.8  
SINCE JUL 1 T 5.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 28 22 6 23  
MONTH TO DATE 498 404 94 326  
SINCE DEC 1 1094 1115 -21 1131  
SINCE JUL 1 2097 2176 -79 2081  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 11.5  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 200 AM  
LOWEST 72 800 PM  
AVERAGE 84  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 48 62 2005  
MINIMUM TEMPERATURE (F) 38 18 1954  
 
SUNRISE AND SUNSET  
JANUARY 19 2024.......SUNRISE 749 AM PST SUNSET 451 PM PST  
JANUARY 20 2024.......SUNRISE 749 AM PST SUNSET 452 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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