390  
CDUS46 KOTX 302345  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE WA  
445 PM PDT TUE MAY 30 2023  
   
...............................
 
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR MAY 30 2023
 
 
VALID AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 86 249 PM 99 1986 75 11 54  
MINIMUM 52 413 AM 32 1951 51 1 49  
AVERAGE 69 63 6 52  
 
PRECIPITATION (IN)  
TODAY 0.00 0.33 1987 0.06 -0.06 0.07  
MONTH TO DATE 0.71 1.64 -0.93 1.91  
SINCE OCT 1 7.97 9.99 -2.02 10.70  
SINCE JAN 1 3.44 6.55 -3.11 6.28  
 
SNOWFALL (IN)  
TODAY MM T 1990 0.0 MM 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 1.2 0.8 0.4 0.6  
SINCE JUL 1 11.9 12.7 -0.8 18.4  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 4 -4 13  
MONTH TO DATE 66 185 -119 271  
SINCE MAR 1 1155 1200 -45 1320  
SINCE JUL 1 4885 4917 -32 4876  
 
COOLING  
TODAY 4 2 2 0  
MONTH TO DATE 118 32 86 6  
SINCE MAR 1 129 34 95 6  
SINCE JAN 1 129 34 95 6    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 4.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 67  
LOWEST 23  
AVERAGE 45  
   
......................................................
 
 
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 102 1903  
MINIMUM TEMPERATURE (F) 51 34 1951  
 
SUNRISE AND SUNSET  
MAY 30 2023...........SUNRISE 501 AM PDT SUNSET 831 PM PDT  
MAY 31 2023...........SUNRISE 500 AM PDT SUNSET 832 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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