139  
CDUS45 KTFX 160737  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
137 AM MDT THU MAY 16 2024  
   
...............................
 
 
   
..THE HELENA MT CLIMATE SUMMARY FOR MAY 15 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 74 241 PM 88 1944 66 8 80  
MINIMUM 44 604 AM 26 1929 41 3 45  
1943  
AVERAGE 59 54 5 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.83 1909 0.07 -0.07 0.00  
MONTH TO DATE 1.06 0.72 0.34 0.57  
SINCE OCT 1 6.78 4.90 1.88 6.89  
SINCE JAN 1 5.26 3.07 2.19 3.48  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.1 1910 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 6 11 -5 2  
MONTH TO DATE 194 204 -10 106  
SINCE MAR 1 1555 1716 -161 1819  
SINCE JUL 1 6605 7210 -605 7404  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 1  
SINCE MAR 1 0 0 0 1  
SINCE JAN 1 0 0 0 1    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 7.8  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 800 AM  
LOWEST 22 300 PM  
AVERAGE 56  
   
......................................................
 
 
THE HELENA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 91 1988  
2006  
MINIMUM TEMPERATURE (F) 42 28 1986  
 
SUNRISE AND SUNSET  
MAY 16 2024...........SUNRISE 552 AM MDT SUNSET 857 PM MDT  
MAY 17 2024...........SUNRISE 551 AM MDT SUNSET 859 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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