015  
CDUS45 KTFX 040747  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
147 AM MDT THU SEP 04 2025  
   
...............................  
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR SEPTEMBER 3 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1896 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 82 340 PM 97 2022 76 6 84  
MINIMUM 51 525 AM 29 1929 45 6 58  
AVERAGE 67 60 7 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.85 1909 0.05 -0.05 0.02  
MONTH TO DATE 0.00 0.14 -0.14 0.02  
SINCE OCT 1 14.89 15.92 -1.03 14.92  
SINCE JAN 1 13.52 13.47 0.05 12.46  
 
SNOWFALL (IN)  
YESTERDAY MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 0  
MONTH TO DATE 0 18 -18 0  
SINCE SEP 1 0 18 -18 0  
SINCE JUL 1 74 164 -90 105  
 
COOLING  
YESTERDAY 2 1 1 6  
MONTH TO DATE 9 4 5 17  
SINCE SEP 1 9 4 5 17  
SINCE JAN 1 161 214 -53 269    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 600 AM  
LOWEST 33 300 PM  
AVERAGE 61  
   
......................................................  
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 93 1924  
2007  
MINIMUM TEMPERATURE (F) 45 20 1929  
 
SUNRISE AND SUNSET  
SEPTEMBER 4 2025.....SUNRISE 642 AM MDT SUNSET 751 PM MDT  
SEPTEMBER 5 2025.....SUNRISE 643 AM MDT SUNSET 749 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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