563  
CDUS45 KTFX 200734  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
134 AM MDT MON MAY 20 2024  
   
...............................  
 
   
..THE HELENA MT CLIMATE SUMMARY FOR MAY 19 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 58 346 PM 90 1954 68 -10 81  
MINIMUM 38 1133 PM 24 1997 43 -5 46  
AVERAGE 48 55 -7 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.08 0.82 1938 0.07 0.01 0.00  
MONTH TO DATE 1.14 0.98 0.16 0.70  
SINCE OCT 1 6.86 5.16 1.70 7.02  
SINCE JAN 1 5.34 3.33 2.01 3.61  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.8 1931 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 17 10 7 1  
MONTH TO DATE 231 246 -15 118  
SINCE MAR 1 1592 1758 -166 1831  
SINCE JUL 1 6642 7252 -610 7416  
 
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 28 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 11.2  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 400 AM  
LOWEST 38 400 PM  
AVERAGE 60  
   
......................................................  
 
THE HELENA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 90 2002  
MINIMUM TEMPERATURE (F) 43 28 1959  
2021  
 
SUNRISE AND SUNSET  
MAY 20 2024...........SUNRISE 548 AM MDT SUNSET 902 PM MDT  
MAY 21 2024...........SUNRISE 547 AM MDT SUNSET 903 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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