279  
CDUS45 KTFX 190736  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
136 AM MDT SUN MAY 19 2024  
   
...............................  
 
   
..THE HELENA MT CLIMATE SUMMARY FOR MAY 18 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 67 412 PM 91 2006 67 0 73  
MINIMUM 40 636 AM 26 1903 42 -2 44  
AVERAGE 54 55 -1 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.10 1944 0.06 -0.06 0.00  
MONTH TO DATE 1.06 0.91 0.15 0.70  
SINCE OCT 1 6.78 5.09 1.69 7.02  
SINCE JAN 1 5.26 3.26 2.00 3.61  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.6 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 11 10 1 6  
MONTH TO DATE 214 236 -22 117  
SINCE MAR 1 1575 1748 -173 1830  
SINCE JUL 1 6625 7242 -617 7415  
 
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 25 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 55 600 AM  
LOWEST 17 400 PM  
AVERAGE 36  
   
......................................................  
 
THE HELENA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 90 1954  
MINIMUM TEMPERATURE (F) 43 24 1997  
 
SUNRISE AND SUNSET  
MAY 19 2024...........SUNRISE 549 AM MDT SUNSET 901 PM MDT  
MAY 20 2024...........SUNRISE 548 AM MDT SUNSET 902 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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