920  
CDUS46 KOTX 192345  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE WA  
445 PM PDT SAT SEP 19 2026  
   
...............................
 
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 19 2026
 
 
VALID AS OF 0400 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 81 247 PM 100 1922 78 3 89  
MINIMUM 55 657 AM 30 1895 51 4 59  
AVERAGE 68 65 3 74  
 
PRECIPITATION (IN)  
TODAY 0.00 0.55 1940 0.03 -0.03 0.00  
MONTH TO DATE 1.56 0.36 1.20 0.93  
SINCE OCT 1 14.02 12.63 1.39 10.15  
SINCE JAN 1 10.65 9.19 1.46 6.38  
 
SNOWFALL (IN)  
TODAY MM 0.0 1998 0.0 MM 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 3 -3 0  
MONTH TO DATE 40 31 9 4  
SINCE SEP 1 40 31 9 4  
SINCE JUL 1 41 42 -1 4  
 
COOLING  
TODAY 3 3 0 9  
MONTH TO DATE 24 86 -62 182  
SINCE SEP 1 24 86 -62 182  
SINCE JAN 1 898 892 6 1282    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 1.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77  
LOWEST 31  
AVERAGE 54  
   
......................................................
 
 
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 102 1939  
MINIMUM TEMPERATURE (F) 51 34 1983  
 
SUNRISE AND SUNSET  
SEPTEMBER 19 2026.....SUNRISE 631 AM PDT SUNSET 651 PM PDT  
SEPTEMBER 20 2026.....SUNRISE 633 AM PDT SUNSET 649 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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