580  
CDUS46 KOTX 010445  
CLILWS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SPOKANE WA  
945 PM PDT WED MAY 31 2023  
   
...............................
 
 
   
..THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR MAY 31 2023
 
 
VALID TODAY AS OF 0900 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 77 413 PM 102 1903 75 2 75  
MINIMUM 55 454 AM 34 1951 51 4 52  
AVERAGE 66 63 3 64  
 
PRECIPITATION (IN)  
TODAY 0.00 0.90 2020 0.05 -0.05 T  
MONTH TO DATE 0.71 1.69 -0.98 1.91  
SINCE OCT 1 7.97 10.04 -2.07 10.70  
SINCE JAN 1 3.44 6.60 -3.16 6.28  
 
DEGREE DAYS  
HEATING  
TODAY 0 4 -4 1  
MONTH TO DATE 66 189 -123 272  
SINCE MAR 1 1155 1204 -49 1321  
SINCE JUL 1 4885 4921 -36 4877  
 
COOLING  
TODAY 1 2 -1 0  
MONTH TO DATE 119 34 85 6  
SINCE MAR 1 130 36 94 6  
SINCE JAN 1 130 36 94 6    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 5.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 59 400 AM  
LOWEST 25 600 PM  
AVERAGE 42  
   
......................................................
 
 
THE LEWISTON ID AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 97 1909  
1986  
MINIMUM TEMPERATURE (F) 52 34 1951  
 
SUNRISE AND SUNSET  
MAY 31 2023...........SUNRISE 500 AM PDT SUNSET 832 PM PDT  
JUNE 1 2023..........SUNRISE 459 AM PDT SUNSET 833 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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