392  
CDUS46 KOTX 010836  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE WA  
136 AM PDT MON SEP 01 2025  
   
...............................
 
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR AUGUST 31 2025
 
 
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)  
YESTERDAY  
MAXIMUM 104 309 PM 106 1967 86 18 99  
2022  
MINIMUM 67 516 AM 44 1907 57 10 57  
AVERAGE 86 71 15 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.90 1896 0.02 -0.02 0.00  
MONTH TO DATE 0.29 0.51 -0.22 0.44  
SINCE OCT 1 9.22 12.27 -3.05 11.11  
SINCE JAN 1 5.45 8.83 -3.38 6.70  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 1998 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 2 -2 2  
SINCE JUN 1 15 68 -53 30  
SINCE JUL 1 0 7 -7 2  
 
COOLING  
YESTERDAY 21 7 14 13  
MONTH TO DATE 402 322 80 360  
SINCE JUN 1 1048 770 278 1021  
SINCE JAN 1 1100 806 294 1044    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 47 600 AM  
LOWEST 10 400 PM  
AVERAGE 29  
   
......................................................
 
 
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 102 1938  
MINIMUM TEMPERATURE (F) 57 44 1999  
 
SUNRISE AND SUNSET  
SEPTEMBER 1 2025.....SUNRISE 609 AM PDT SUNSET 726 PM PDT  
SEPTEMBER 2 2025.....SUNRISE 610 AM PDT SUNSET 724 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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