370  
CDUS45 KMSO 210737  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
137 AM MDT THU AUG 21 2025  
   
...............................
 
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR AUGUST 20 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 91 409 PM 99 1940 83 8 88  
MINIMUM 56 633 AM 36 1916 49 7 50  
AVERAGE 74 66 8 69  
 
PRECIPITATION (IN)  
YESTERDAY T 0.97 1981 0.03 -0.03 0.00  
MONTH TO DATE 0.62 0.51 0.11 0.48  
SINCE OCT 1 10.04 12.83 -2.79 10.19  
SINCE JAN 1 8.47 9.39 -0.92 7.99  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE JUN 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 13 20 -7 0  
SINCE JUN 1 135 244 -109 157  
SINCE JUL 1 33 59 -26 3  
 
COOLING  
YESTERDAY 9 3 6 4  
MONTH TO DATE 90 93 -3 125  
SINCE JUN 1 319 267 52 406  
SINCE JAN 1 330 270 60 406    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 500 AM  
LOWEST 16 400 PM  
AVERAGE 47  
   
......................................................
 
 
THE MISSOULA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 100 1969  
MINIMUM TEMPERATURE (F) 49 36 1904  
 
SUNRISE AND SUNSET  
AUGUST 21 2025........SUNRISE 642 AM MDT SUNSET 836 PM MDT  
AUGUST 22 2025........SUNRISE 643 AM MDT SUNSET 834 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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