074  
CDUS46 KOTX 200445  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE WA  
945 PM PDT FRI SEP 19 2025  
   
...............................
 
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 19 2025
 
 
VALID TODAY AS OF 0900 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 89 403 PM 100 1922 78 11 83  
MINIMUM 59 624 AM 30 1895 51 8 53  
AVERAGE 74 65 9 68  
 
PRECIPITATION (IN)  
TODAY 0.00 0.55 1940 0.03 -0.03 0.00  
MONTH TO DATE 0.93 0.36 0.57 0.82  
SINCE OCT 1 10.15 12.63 -2.48 11.93  
SINCE JAN 1 6.38 9.19 -2.81 7.52  
 
DEGREE DAYS  
HEATING  
TODAY 0 3 -3 0  
MONTH TO DATE 4 31 -27 2  
SINCE SEP 1 4 31 -27 2  
SINCE JUL 1 4 42 -38 4  
 
COOLING  
TODAY 9 3 6 3  
MONTH TO DATE 182 86 96 147  
SINCE SEP 1 182 86 96 147  
SINCE JAN 1 1282 892 390 1191    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 3.1  
 
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 64 500 AM  
LOWEST 23 400 PM  
AVERAGE 44  
   
......................................................
 
 
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 2025.....SUNRISE 632 AM PDT SUNSET 651 PM PDT  
SEPTEMBER 20 2025.....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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