372  
CDUS45 KMSO 210737  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
137 AM MDT THU AUG 21 2025  
   
...............................
 
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR AUGUST 20 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 87 221 PM 91 1973 79 8 86  
MINIMUM 50 552 AM 31 1938 43 7 43  
AVERAGE 69 61 8 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.69 1923 0.04 -0.04 0.00  
MONTH TO DATE 0.48 0.84 -0.36 0.83  
SINCE JAN 1 7.83 9.33 -1.50 5.95  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE MM  
SINCE JUN 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 5 -5 0  
MONTH TO DATE 62 58 4 43  
SINCE JUN 1 373 439 -66 357  
SINCE JUL 1 120 149 -29 113  
 
COOLING  
YESTERDAY 4 0 4 0  
MONTH TO DATE 16 25 -9 30  
SINCE JUN 1 54 79 -25 125  
SINCE JAN 1 54 79 -25 125    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 4.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 600 AM  
LOWEST 17 400 PM  
AVERAGE 46  
   
......................................................
 
 
THE BUTTE MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 92 2009  
MINIMUM TEMPERATURE (F) 43 29 1966  
 
SUNRISE AND SUNSET  
AUGUST 21 2025........SUNRISE 638 AM MDT SUNSET 828 PM MDT  
AUGUST 22 2025........SUNRISE 639 AM MDT SUNSET 826 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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