290  
CDUS45 KTFX 192240  
CLIGTF  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
440 PM MDT FRI SEP 19 2025  
   
...............................
 
 
   
..THE GREAT FALLS MT CLIMATE SUMMARY FOR SEPTEMBER 19 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1886 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 81 259 PM 92 2009 70 11 73  
MINIMUM 47 602 AM 26 1957 42 5 47  
AVERAGE 64 56 8 60  
 
PRECIPITATION (IN)  
TODAY 0.00 1.51 1925 0.05 -0.05 T  
MONTH TO DATE 0.26 0.86 -0.60 1.80  
SINCE OCT 1 11.39 14.29 -2.90 14.85  
SINCE JAN 1 10.31 12.01 -1.70 12.75  
 
DEGREE DAYS  
HEATING  
TODAY 1 9 -8 5  
MONTH TO DATE 46 131 -85 70  
SINCE SEP 1 46 131 -85 70  
SINCE JUL 1 89 245 -156 121  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 26 23 3 43  
SINCE SEP 1 26 23 3 43  
SINCE JAN 1 325 306 19 367    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 5.4  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 600 AM  
LOWEST 26 300 PM  
AVERAGE 53  
   
......................................................
 
 
THE GREAT FALLS MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 93 1917  
MINIMUM TEMPERATURE (F) 42 24 1995  
 
SUNRISE AND SUNSET  
SEPTEMBER 19 2025.....SUNRISE 709 AM MDT SUNSET 728 PM MDT  
SEPTEMBER 20 2025.....SUNRISE 710 AM MDT SUNSET 726 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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