892  
CDUS45 KTFX 172240  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
440 PM MDT THU SEP 17 2026  
   
...............................
 
 
   
..THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 17 2026
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 72 259 PM 90 1998 73 -1 74  
MINIMUM 44 618 AM 20 1965 44 0 45  
AVERAGE 58 59 -1 60  
 
PRECIPITATION (IN)  
TODAY T 0.98 1908 0.03 -0.03 0.00  
MONTH TO DATE 0.73 0.57 0.16 0.57  
SINCE OCT 1 13.21 11.01 2.20 11.95  
SINCE JAN 1 10.54 9.18 1.36 11.19  
 
DEGREE DAYS  
HEATING  
TODAY 7 7 0 5  
MONTH TO DATE 80 88 -8 31  
SINCE SEP 1 80 88 -8 31  
SINCE JUL 1 104 151 -47 57  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 8 25 -17 34  
SINCE SEP 1 8 25 -17 34  
SINCE JAN 1 493 430 63 465    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 1.6  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 700 AM  
LOWEST 44 300 PM  
AVERAGE 69  
   
......................................................
 
 
THE HELENA MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 91 1966  
MINIMUM TEMPERATURE (F) 44 19 1965  
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2026.....SUNRISE 709 AM MDT SUNSET 735 PM MDT  
SEPTEMBER 18 2026.....SUNRISE 710 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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