522  
CDUS45 KTFX 120737  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
137 AM MDT THU SEP 12 2024  
   
...............................
 
 
   
..THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 11 2024
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1866 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 221 PM 92 1958 75 2 83  
MINIMUM 49 636 AM 27 1890 46 3 48  
AVERAGE 63 61 2 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.60 1.61 1980 0.04 0.56 0.00  
MONTH TO DATE 0.85 0.38 0.47 1.22  
SINCE OCT 1 10.19 10.82 -0.63 12.89  
SINCE JAN 1 8.67 8.99 -0.32 9.48  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.8 1949 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 2 6 -4 0  
MONTH TO DATE 2 50 -48 10  
SINCE SEP 1 2 50 -48 10  
SINCE JUL 1 14 113 -99 14  
 
COOLING  
YESTERDAY 0 1 -1 1  
MONTH TO DATE 61 19 42 21  
SINCE SEP 1 61 19 42 21  
SINCE JAN 1 579 424 155 573    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 41 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 55 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 5.1  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 800 PM  
LOWEST 30 200 PM  
AVERAGE 64  
   
......................................................
 
 
THE HELENA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 91 1953  
1990  
2015  
MINIMUM TEMPERATURE (F) 46 22 1949  
 
SUNRISE AND SUNSET  
SEPTEMBER 12 2024.....SUNRISE 703 AM MDT SUNSET 744 PM MDT  
SEPTEMBER 13 2024.....SUNRISE 704 AM MDT SUNSET 742 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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