690  
CDUS46 KOTX 202345  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE WA  
445 PM PDT MON MAY 20 2024  
   
...............................
 
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR MAY 20 2024
 
 
VALID AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1881 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 70 248 PM 95 2023 73 -3 95  
MINIMUM 48 514 AM 37 1927 49 -1 63  
AVERAGE 59 61 -2 79  
 
PRECIPITATION (IN)  
TODAY T 0.96 2020 0.05 -0.05 0.00  
MONTH TO DATE 0.60 1.06 -0.46 0.55  
SINCE OCT 1 9.75 9.41 0.34 7.81  
SINCE JAN 1 5.34 5.97 -0.63 3.28  
 
SNOWFALL (IN)  
TODAY MM T 1975 0.0 MM 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 T 0.8 -0.8 1.2  
SINCE JUL 1 13.3 12.7 0.6 11.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 6 5 1 0  
MONTH TO DATE 122 143 -21 59  
SINCE MAR 1 1058 1158 -100 1148  
SINCE JUL 1 4488 4875 -387 4878  
 
COOLING  
TODAY 0 1 -1 14  
MONTH TO DATE 18 16 2 82  
SINCE MAR 1 18 18 0 93  
SINCE JAN 1 18 18 0 93    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 6.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 61  
LOWEST 27  
AVERAGE 44  
   
......................................................
 
 
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 97 1928  
MINIMUM TEMPERATURE (F) 50 35 1960  
1971  
2010  
 
SUNRISE AND SUNSET  
MAY 20 2024...........SUNRISE 509 AM PDT SUNSET 821 PM PDT  
MAY 21 2024...........SUNRISE 508 AM PDT SUNSET 823 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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