491  
CDUS45 KTFX 240750  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
150 AM MDT THU SEP 24 2026  
   
...............................
 
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR SEPTEMBER 23 2026
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1896 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM MM MM 90 1966 67 MM 75  
MINIMUM MM MM 18 1926 39 MM 37  
1926  
AVERAGE MM 53 MM 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.65 1920 0.05 -0.05 0.00  
MONTH TO DATE 0.57 1.06 -0.49 0.95  
SINCE OCT 1 17.13 16.84 0.29 15.84  
SINCE JAN 1 14.54 14.39 0.15 14.47  
 
SNOWFALL (IN)  
YESTERDAY MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 12 MM 9  
MONTH TO DATE 72 196 -124 109  
SINCE SEP 1 72 196 -124 109  
SINCE JUL 1 136 342 -206 183  
 
COOLING  
YESTERDAY MM 0 MM 0  
MONTH TO DATE 17 14 3 11  
SINCE SEP 1 17 14 3 11  
SINCE JAN 1 338 224 114 163    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED MM  
 
SKY COVER  
AVERAGE SKY COVER MM  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................
 
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 89 1938  
2009  
MINIMUM TEMPERATURE (F) 39 6 1926  
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2026.....SUNRISE 708 AM MDT SUNSET 711 PM MDT  
SEPTEMBER 25 2026.....SUNRISE 709 AM MDT SUNSET 709 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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