496  
CDUS46 KSEW 290930  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
130 AM PST MON JAN 29 2024  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 28 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 61R 418 PM 57 1976 49 12 44  
1998  
2018  
MINIMUM 51 232 AM 7 1950 38 13 36  
AVERAGE 56 43 13 40  
 
PRECIPITATION (IN)  
YESTERDAY 0.52 1.23 1960 0.17 0.35 0.08  
MONTH TO DATE 6.17 5.26 0.91 3.09  
SINCE OCT 1 23.32 21.20 2.12 17.98  
SINCE JAN 1 6.17 5.26 0.91 3.09  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.1 1996 T  
MONTH TO DATE T T  
SINCE OCT 1 T 5.8  
SINCE JUL 1 T 5.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 22 -13 25  
MONTH TO DATE 670 624 46 565  
SINCE DEC 1 1266 1335 -69 1370  
SINCE JUL 1 2269 2396 -127 2320  
 
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 6 RESULTANT WIND DIRECTION SE (150)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 7.2  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 500 AM  
LOWEST 69 900 PM  
AVERAGE 83  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 60 1992  
MINIMUM TEMPERATURE (F) 38 6 1950  
 
SUNRISE AND SUNSET  
JANUARY 29 2024.......SUNRISE 739 AM PST SUNSET 506 PM PST  
JANUARY 30 2024.......SUNRISE 738 AM PST SUNSET 507 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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