645  
CDUS46 KOTX 170445  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE WA  
945 PM PDT WED SEP 16 2026  
   
...............................  
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 16 2026  
 
VALID TODAY AS OF 0900 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1881 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 79 354 PM 97 1981 80 -1 81  
2023  
MINIMUM 50 557 AM 35 1965 52 -2 50  
AVERAGE 65 66 -1 66  
 
PRECIPITATION (IN)  
TODAY 0.00 0.83 1947 0.02 -0.02 0.00  
MONTH TO DATE 1.56 0.29 1.27 0.93  
SINCE OCT 1 14.02 12.56 1.46 10.15  
SINCE JAN 1 10.65 9.12 1.53 6.38  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 0  
MONTH TO DATE 36 23 13 4  
SINCE SEP 1 36 23 13 4  
SINCE JUL 1 37 34 3 4  
 
COOLING  
TODAY 0 3 -3 1  
MONTH TO DATE 20 77 -57 155  
SINCE SEP 1 20 77 -57 155  
SINCE JAN 1 894 883 11 1255    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 3.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 500 AM  
LOWEST 33 300 PM  
AVERAGE 60  
   
......................................................  
 
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 101 1938  
MINIMUM TEMPERATURE (F) 52 28 1965  
 
SUNRISE AND SUNSET  
SEPTEMBER 16 2026.....SUNRISE 627 AM PDT SUNSET 657 PM PDT  
SEPTEMBER 17 2026.....SUNRISE 629 AM PDT SUNSET 655 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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