037  
CDUS45 KTFX 130753  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
153 AM MDT SUN SEP 13 2026  
   
...............................
 
 
   
..THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 12 2026
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1866 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 68 418 PM 91 1953 75 -7 78  
1990  
2015  
MINIMUM 48 214 AM 22 1949 46 2 49  
AVERAGE 58 60 -2 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.75 1914 0.03 -0.03 0.00  
MONTH TO DATE 0.51 0.41 0.10 T  
SINCE OCT 1 12.99 10.85 2.14 11.38  
SINCE JAN 1 10.32 9.02 1.30 10.62  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.4 1896 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.3 -0.3 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 6 1 1  
MONTH TO DATE 38 56 -18 11  
SINCE SEP 1 38 56 -18 11  
SINCE JUL 1 62 119 -57 37  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 8 20 -12 34  
SINCE SEP 1 8 20 -12 34  
SINCE JAN 1 493 425 68 465    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 6.6  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 600 AM  
LOWEST 43 400 PM  
AVERAGE 59  
   
......................................................
 
 
THE HELENA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 92 1959  
MINIMUM TEMPERATURE (F) 46 27 1949  
1970  
1974  
 
SUNRISE AND SUNSET  
SEPTEMBER 13 2026.....SUNRISE 703 AM MDT SUNSET 743 PM MDT  
SEPTEMBER 14 2026.....SUNRISE 705 AM MDT SUNSET 741 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MT Page Main Text Page