245  
CDUS45 KTFX 180744  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
144 AM MDT WED SEP 18 2024  
   
...............................  
 
   
..THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 17 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 62 1200 PM 90 1998 73 -11 89  
MINIMUM 50 530 AM 20 1965 44 6 48  
AVERAGE 56 59 -3 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.19 0.98 1908 0.03 0.16 0.00  
MONTH TO DATE 1.19 0.57 0.62 1.22  
SINCE OCT 1 10.53 11.01 -0.48 12.89  
SINCE JAN 1 9.01 9.18 -0.17 9.48  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.4 1988 0.1 -0.1 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE SEP 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.4 -0.4 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 7 2 0  
MONTH TO DATE 32 88 -56 15  
SINCE SEP 1 32 88 -56 15  
SINCE JUL 1 44 151 -107 19  
 
COOLING  
YESTERDAY 0 1 -1 4  
MONTH TO DATE 62 25 37 31  
SINCE SEP 1 62 25 37 31  
SINCE JAN 1 580 430 150 583    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 3.9  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 900 PM  
LOWEST 69 1200 PM  
AVERAGE 83  
   
......................................................  
 
THE HELENA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 91 1966  
MINIMUM TEMPERATURE (F) 44 19 1965  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2024.....SUNRISE 711 AM MDT SUNSET 732 PM MDT  
SEPTEMBER 19 2024.....SUNRISE 712 AM MDT SUNSET 730 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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