641  
CDUS45 KMSO 140838  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
138 AM MST SUN DEC 14 2025  
   
...............................
 
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR DECEMBER 13 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1893 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 54 336 PM 56 1924 31 23 35  
MINIMUM 31 1121 PM -25 1919 18 13 26  
AVERAGE 43 24 19 31  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.53 1917 0.03 -0.03 T  
MONTH TO DATE 1.80 0.44 1.36 0.04  
SINCE OCT 1 3.94 2.80 1.14 1.24  
SINCE JAN 1 13.12 13.47 -0.35 10.35  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 8.0  
SINCE DEC 1 8.0  
SINCE JUL 1 9.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 22 41 -19 34  
MONTH TO DATE 366 511 -145 461  
SINCE DEC 1 366 511 -145 461  
SINCE JUL 1 1857 2468 -611 2002  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 441 307 134 474    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 2.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 800 AM  
LOWEST 52 300 PM  
AVERAGE 71  
   
......................................................
 
 
THE MISSOULA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 60 1924  
MINIMUM TEMPERATURE (F) 18 -23 1919  
 
SUNRISE AND SUNSET  
DECEMBER 14 2025......SUNRISE 815 AM MST SUNSET 448 PM MST  
DECEMBER 15 2025......SUNRISE 815 AM MST SUNSET 448 PM MST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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