531  
CDUS45 KMSO 012231  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
431 PM MDT MON SEP 01 2025  
   
...............................  
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR SEPTEMBER 1 2025  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 84 259 PM 92 1998 75 9 89  
MINIMUM 44 517 AM 26 2006 40 4 45  
AVERAGE 64 58 6 67  
 
PRECIPITATION (IN)  
TODAY 0.00 0.94 1896 0.04 -0.04 0.00  
MONTH TO DATE 0.00 0.04 -0.04 0.00  
SINCE JAN 1 8.28 9.81 -1.53 6.09  
 
SNOWFALL (IN)  
TODAY MM  
MONTH TO DATE MM  
SINCE SEP 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 1 8 -7 0  
MONTH TO DATE 1 8 -7 0  
SINCE SEP 1 1 8 -7 0  
SINCE JUL 1 152 223 -71 188  
 
COOLING  
TODAY 0 0 0 2  
MONTH TO DATE 0 0 0 2  
SINCE SEP 1 0 0 0 2  
SINCE JAN 1 57 81 -24 127    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 1.6  
 
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 74 700 AM  
LOWEST 16 100 PM  
AVERAGE 45  
   
......................................................  
 
THE BUTTE MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 92 1998  
MINIMUM TEMPERATURE (F) 40 25 1959  
 
SUNRISE AND SUNSET  
SEPTEMBER 1 2025.....SUNRISE 651 AM MDT SUNSET 807 PM MDT  
SEPTEMBER 2 2025.....SUNRISE 653 AM MDT SUNSET 806 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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