936  
CDUS46 KOTX 122345  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE WA  
445 PM PDT FRI SEP 12 2025  
   
...............................  
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 12 2025  
 
VALID AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1881 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 78 259 PM 98 1944 81 -3 72  
MINIMUM 61 533 AM 36 1895 54 7 57  
1970  
AVERAGE 70 67 3 65  
 
PRECIPITATION (IN)  
TODAY 0.01 0.97 1895 0.02 -0.01 0.43  
MONTH TO DATE 0.40 0.22 0.18 0.78  
SINCE OCT 1 9.62 12.49 -2.87 11.89  
SINCE JAN 1 5.85 9.05 -3.20 7.48  
 
SNOWFALL (IN)  
TODAY MM 0.0 1998 0.0 MM 0.0  
2001  
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 2 -2 0  
MONTH TO DATE 0 15 -15 0  
SINCE SEP 1 0 15 -15 0  
SINCE JUL 1 0 26 -26 2  
 
COOLING  
TODAY 5 4 1 0  
MONTH TO DATE 147 63 84 133  
SINCE SEP 1 147 63 84 133  
SINCE JAN 1 1247 869 378 1177    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 3.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87  
LOWEST 45  
AVERAGE 66  
   
......................................................  
 
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 99 1937  
MINIMUM TEMPERATURE (F) 53 33 1921  
1970  
 
SUNRISE AND SUNSET  
SEPTEMBER 12 2025.....SUNRISE 623 AM PDT SUNSET 705 PM PDT  
SEPTEMBER 13 2025.....SUNRISE 624 AM PDT SUNSET 703 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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