152  
CDUS45 KMSO 222231  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
431 PM MDT MON SEP 22 2025  
   
...............................
 
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR SEPTEMBER 22 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 70 158 PM 91 1938 70 0 71  
MINIMUM 45 626 AM 25 1893 41 4 37  
1895  
1993  
AVERAGE 58 55 3 54  
 
PRECIPITATION (IN)  
TODAY T 1.11 2022 0.04 -0.04 0.00  
MONTH TO DATE 0.19 0.72 -0.53 1.05  
SINCE OCT 1 10.53 13.87 -3.34 11.31  
SINCE JAN 1 8.96 10.43 -1.47 9.11  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 0.0  
SINCE SEP 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 7 10 -3 11  
MONTH TO DATE 35 145 -110 83  
SINCE SEP 1 35 145 -110 83  
SINCE JUL 1 69 231 -162 115  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 54 11 43 42  
SINCE SEP 1 54 11 43 42  
SINCE JAN 1 441 303 138 470    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 3.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 400 AM  
LOWEST 28 200 PM  
AVERAGE 51  
   
......................................................
 
 
THE MISSOULA MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 91 1938  
MINIMUM TEMPERATURE (F) 40 20 2000  
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2025.....SUNRISE 724 AM MDT SUNSET 733 PM MDT  
SEPTEMBER 23 2025.....SUNRISE 725 AM MDT SUNSET 731 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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