617  
CDUS46 KOTX 010837  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE WA  
137 AM PDT FRI SEP 01 2023  
   
...............................
 
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR AUGUST 31 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1881 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 229 PM 106 1967 86 -9 106  
2022  
MINIMUM 54 557 AM 44 1907 57 -3 65  
AVERAGE 66 71 -5 86  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.90 1896 0.02 -0.02 0.00  
MONTH TO DATE 0.83 0.51 0.32 0.16  
SINCE OCT 1 9.89 12.27 -2.38 14.21  
SINCE JAN 1 5.36 8.83 -3.47 9.79  
 
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 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 1 2 -1 0  
SINCE JUN 1 22 68 -46 45  
SINCE JUL 1 1 7 -6 0  
 
COOLING  
YESTERDAY 1 7 -6 21  
MONTH TO DATE 388 322 66 479  
SINCE JUN 1 1054 770 284 995  
SINCE JAN 1 1184 806 378 1001    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 3.7  
 
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 90 600 AM  
LOWEST 40 200 PM  
AVERAGE 65  
   
......................................................
 
 
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 2023.....SUNRISE 608 AM PDT SUNSET 727 PM PDT  
SEPTEMBER 2 2023.....SUNRISE 609 AM PDT SUNSET 725 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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