334  
CDUS46 KOTX 210856  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE, WA  
156 AM PDT SAT SEP 21 2019  
 
   
...............................
 
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2019
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1881 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 68 133 PM 102 1939 76 -8 73  
MINIMUM 52 613 AM 34 1983 50 2 46  
AVERAGE 60 63 -3 60  
 
PRECIPITATION (IN)  
YESTERDAY T 0.53 1969 0.02 -0.02 0.00  
MONTH TO DATE 0.52 0.43 0.09 0.04  
SINCE OCT 1 13.17 12.07 1.10 15.24  
SINCE JAN 1 9.95 8.96 0.99 9.68  
 
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 5 4 1 5  
MONTH TO DATE 21 43 -22 45  
SINCE SEP 1 21 43 -22 45  
SINCE JUL 1 21 58 -37 55  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 101 75 26 45  
SINCE SEP 1 101 75 26 45  
SINCE JAN 1 956 792 164 933    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 3.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 600 AM  
LOWEST 48 1200 PM  
AVERAGE 66  
   
......................................................
 
 
 
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 101 1967  
MINIMUM TEMPERATURE (F) 49 29 1895  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2019.....SUNRISE 633 AM PDT SUNSET 648 PM PDT  
SEPTEMBER 22 2019.....SUNRISE 635 AM PDT SUNSET 646 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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