224  
CDUS46 KOTX 212340  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE, WA  
438 PM PDT THU SEP 21 2017  
 
   
...............................
 
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 21 2017
 
 
VALID AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1881 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 61 202 PM 101 1967 76 -15 67  
MINIMUM 43 340 AM 29 1895 49 -6 49  
AVERAGE 52 63 -11 58  
 
PRECIPITATION (IN)  
TODAY 0.00 0.50 1968 0.03 -0.03 0.00  
MONTH TO DATE 0.52 0.46 0.06 0.51  
SINCE OCT 1 15.80 12.10 3.70 13.60  
SINCE JAN 1 10.92 8.99 1.93 10.15  
 
SNOWFALL (IN)  
TODAY 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  
TODAY 13 4 9 7  
MONTH TO DATE 59 47 12 50  
SINCE SEP 1 59 47 12 50  
SINCE JUL 1 59 62 -3 61  
 
COOLING  
TODAY 0 2 -2 0  
MONTH TO DATE 136 77 59 19  
SINCE SEP 1 136 77 59 19  
SINCE JAN 1 1155 794 361 835    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 3.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92  
LOWEST 47  
AVERAGE 70  
   
......................................................
 
 
 
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 99 1966  
MINIMUM TEMPERATURE (F) 49 34 1955  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2017.....SUNRISE 634 AM PDT SUNSET 647 PM PDT  
SEPTEMBER 22 2017.....SUNRISE 635 AM PDT SUNSET 645 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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