138   
CDUS45 KMSO 210747  
CLIMSO  
  
CLIMATE REPORT   
NATIONAL WEATHER SERVICE MISSOULA MT  
147 AM MDT SUN SEP 21 2025  
   
...............................  
  
   
..THE MISSOULA MT CLIMATE SUMMARY FOR SEPTEMBER 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         87    436 PM  91    1938  71     16       68         
  MINIMUM         45    706 AM  24    1983  41      4       43         
  AVERAGE         66                        56     10       56       
  
PRECIPITATION (IN)                                                      
  YESTERDAY        0.00          0.56 1984   0.03  -0.03     0.00       
  MONTH TO DATE    0.19                      0.65  -0.46     1.05       
  SINCE OCT 1     10.53                     13.80  -3.27    11.31       
  SINCE JAN 1      8.96                     10.36  -1.40     9.11       
  
SNOWFALL (IN)                                                                
  YESTERDAY        0.0                                                  
  MONTH TO DATE    0.0                                                  
  SINCE SEP 1      0.0                                                  
  SINCE JUL 1      0.0                                                  
  SNOW DEPTH      MM                                                    
  
DEGREE DAYS                                                             
 HEATING                                                                
  YESTERDAY        0                         9     -9        9          
  MONTH TO DATE   25                       125   -100       60          
  SINCE SEP 1     25                       125   -100       60          
  SINCE JUL 1     59                       211   -152       92          
  
 COOLING                                                                
  YESTERDAY        1                         0      1        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    17   HIGHEST WIND DIRECTION     W (280)         
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     W (260)         
  AVERAGE WIND SPEED     3.2                                          
  
SKY COVER                                                               
  POSSIBLE SUNSHINE  MM                                                   
  AVERAGE SKY COVER 0.0                                                   
  
WEATHER CONDITIONS                                                      
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                           
  NO SIGNIFICANT WEATHER WAS OBSERVED.                                    
  
RELATIVE HUMIDITY (PERCENT)  
 HIGHEST    74           700 AM                                        
 LOWEST     12           500 PM                                        
 AVERAGE    43                                                          
   
......................................................  
  
THE MISSOULA MT CLIMATE NORMALS FOR TODAY  
                         NORMAL    RECORD    YEAR                       
 MAXIMUM TEMPERATURE (F)   70        92      1967                        
 MINIMUM TEMPERATURE (F)   41        23      1971                        
  
SUNRISE AND SUNSET                                                      
SEPTEMBER 21 2025.....SUNRISE   722 AM MDT   SUNSET   735 PM MDT       
SEPTEMBER 22 2025.....SUNRISE   724 AM MDT   SUNSET   733 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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