207  
CDUS45 KTFX 130735  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
135 AM MDT WED MAY 13 2026  
   
...............................
 
 
   
..THE HELENA MT CLIMATE SUMMARY FOR MAY 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 80 524 PM 92 2001 65 15 69  
MINIMUM 42 533 AM 22 1943 40 2 46  
AVERAGE 61 53 8 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.00 1900 0.05 -0.05 0.23  
MONTH TO DATE 0.05 0.53 -0.48 1.41  
SINCE OCT 1 6.14 4.71 1.43 5.08  
SINCE JAN 1 3.47 2.88 0.59 4.32  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.4 1970 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE MAR 1 9.3 7.6 1.7 1.0  
SINCE JUL 1 22.3 37.2 -14.9 36.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 4 12 -8 7  
MONTH TO DATE 116 169 -53 92  
SINCE MAR 1 1416 1681 -265 1326  
SINCE JUL 1 5708 7175 -1467 6398  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 4  
SINCE MAR 1 0 0 0 4  
SINCE JAN 1 0 0 0 4    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 5.0  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 57 300 AM  
LOWEST 16 500 PM  
AVERAGE 37  
   
......................................................
 
 
THE HELENA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 89 2001  
MINIMUM TEMPERATURE (F) 41 23 1983  
 
SUNRISE AND SUNSET  
MAY 13 2026...........SUNRISE 556 AM MDT SUNSET 853 PM MDT  
MAY 14 2026...........SUNRISE 555 AM MDT SUNSET 854 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