499  
CDUS46 KOTX 190829  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE WA  
129 AM PDT TUE SEP 19 2023  
   
...............................
 
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 18 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 83 312 PM 101 1938 79 4 71  
MINIMUM 55 556 AM 35 1965 52 3 55  
AVERAGE 69 65 4 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.78 1940 0.02 -0.02 T  
MONTH TO DATE 0.16 0.33 -0.17 0.18  
SINCE OCT 1 10.05 12.60 -2.55 14.39  
SINCE JAN 1 5.52 9.16 -3.64 9.97  
 
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 SEP 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 3 -3 2  
MONTH TO DATE 0 28 -28 3  
SINCE SEP 1 0 28 -28 3  
SINCE JUL 1 1 39 -38 3  
 
COOLING  
YESTERDAY 4 3 1 0  
MONTH TO DATE 126 83 43 111  
SINCE SEP 1 126 83 43 111  
SINCE JAN 1 1310 889 421 1112    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 6.5  
 
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 38 400 AM  
LOWEST 19 1200 AM  
AVERAGE 29  
   
......................................................
 
 
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 100 1922  
MINIMUM TEMPERATURE (F) 51 30 1895  
 
SUNRISE AND SUNSET  
SEPTEMBER 19 2023.....SUNRISE 631 AM PDT SUNSET 652 PM PDT  
SEPTEMBER 20 2023.....SUNRISE 632 AM PDT SUNSET 650 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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