511  
CDUS45 KMSO 300745  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
145 AM MDT TUE SEP 30 2025  
   
...............................
 
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR SEPTEMBER 29 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1895 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 305 PM 84 1963 63 14 78  
MINIMUM 43 601 AM 10 1985 33 10 40  
AVERAGE 60 48 12 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.05 0.84 1947 0.03 0.02 0.00  
MONTH TO DATE 0.50 1.04 -0.54 0.80  
SINCE JAN 1 8.78 10.81 -2.03 6.89  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE T  
SINCE SEP 1 T  
SINCE JUL 1 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 17 -12 6  
MONTH TO DATE 233 350 -117 213  
SINCE SEP 1 233 350 -117 213  
SINCE JUL 1 384 565 -181 401  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 3 0 3 2  
SINCE SEP 1 3 0 3 2  
SINCE JAN 1 60 81 -21 127    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 4.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 1100 PM  
LOWEST 24 300 PM  
AVERAGE 55  
   
......................................................
 
 
THE BUTTE MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 84 1992  
MINIMUM TEMPERATURE (F) 33 13 1985  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2025.....SUNRISE 728 AM MDT SUNSET 711 PM MDT  
OCTOBER 1 2025.......SUNRISE 729 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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