471  
CDUS45 KTFX 180739  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
139 AM MDT FRI APR 18 2025  
   
...............................
 
 
   
..THE HELENA MT CLIMATE SUMMARY FOR APRIL 17 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1866 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 45 354 PM 80 1994 57 -12 40  
MINIMUM 29 1034 PM 9 1896 33 -4 30  
AVERAGE 37 45 -8 35  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.56 1885 0.04 -0.03 0.01  
MONTH TO DATE 0.24 0.56 -0.32 0.72  
SINCE OCT 1 3.64 3.72 -0.08 5.67  
SINCE JAN 1 2.88 1.89 0.99 4.15  
 
SNOWFALL (IN)  
YESTERDAY T 5.6 1885 0.1 -0.1 T  
MONTH TO DATE 1.0 1.9 -0.9 0.4  
SINCE MAR 1 1.0 6.5 -5.5 9.7  
SINCE JUL 1 36.8 36.1 0.7 57.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 28 20 8 30  
MONTH TO DATE 342 377 -35 266  
SINCE MAR 1 1018 1275 -257 1128  
SINCE JUL 1 6090 6769 -679 6178  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 10.3  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
SNOW  
LIGHT SNOW  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 400 PM  
LOWEST 38 1100 AM  
AVERAGE 67  
   
......................................................
 
 
THE HELENA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 80 1910  
1936  
MINIMUM TEMPERATURE (F) 33 9 1951  
 
SUNRISE AND SUNSET  
APRIL 18 2025.........SUNRISE 635 AM MDT SUNSET 821 PM MDT  
APRIL 19 2025.........SUNRISE 633 AM MDT SUNSET 822 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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