014  
CDUS45 KTFX 180738  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
138 AM MDT SAT MAY 18 2024  
   
...............................
 
 
   
..THE HELENA MT CLIMATE SUMMARY FOR MAY 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 65 732 AM 90 2006 67 -2 68  
MINIMUM 46 1152 PM 26 1943 42 4 51  
AVERAGE 56 54 2 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.84 2017 0.07 -0.07 0.08  
MONTH TO DATE 1.06 0.85 0.21 0.70  
SINCE OCT 1 6.78 5.03 1.75 7.02  
SINCE JAN 1 5.26 3.20 2.06 3.61  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.0 1903 0.0 0.0 0.0  
MONTH TO DATE 0.5 0.1 0.4 0.0  
SINCE MAR 1 10.2 7.6 2.6 21.6  
SINCE JUL 1 57.9 37.2 20.7 48.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 11 -2 5  
MONTH TO DATE 203 226 -23 111  
SINCE MAR 1 1564 1738 -174 1824  
SINCE JUL 1 6614 7232 -618 7409  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 2  
SINCE MAR 1 0 0 0 2  
SINCE JAN 1 0 0 0 2    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 40 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 62 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 17.1  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 46 200 AM  
LOWEST 22 200 PM  
AVERAGE 34  
   
......................................................
 
 
THE HELENA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 91 2006  
MINIMUM TEMPERATURE (F) 42 26 1903  
 
SUNRISE AND SUNSET  
MAY 18 2024...........SUNRISE 550 AM MDT SUNSET 900 PM MDT  
MAY 19 2024...........SUNRISE 549 AM MDT SUNSET 901 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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