366  
CXUS55 KTFX 210023  
CLMHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
622 PM MDT MON MAR 20 2017  
   
...............................
 
 
   
..THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF FEBRUARY 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1866 TO 2017  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE DATE(S)  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 69 02/24/1995  
02/27/1932  
LOW -42 02/02/1996  
HIGHEST 56 02/09 41 15 61 02/26  
LOWEST -16 02/03 12 -28 9 02/03  
AVG. MAXIMUM 34.5 38.6 -4.1 48.1  
AVG. MINIMUM 14.9 16.9 -2.0 27.6  
MEAN 24.7 27.7 -3.0 37.9  
DAYS MAX >= 90 0 0.0 0.0 0  
DAYS MAX <= 32 10 6.8 3.2 1  
DAYS MIN <= 32 26 25.8 0.2 22  
DAYS MIN <= 0 5 3.5 1.5 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 1.98 2014  
MINIMUM 0.02 1991  
TOTALS 0.68 0.30 0.38 0.16  
DAYS >= .01 9 5.9 3.1  
DAYS >= .10 3 1.0 2.0  
DAYS >= .50 0 0.0 0.0  
DAYS >= 1.00 0 0.0 0.0  
GREATEST  
24 HR. TOTAL 0.19 02/06 TO 02/06  
02/05 TO 02/06  
02/06 TO 02/06  
 
SNOWFALL (INCHES)  
RECORDS  
TOTAL MM 5  
24 HR TOTAL MM  
TOTALS 10.8 5.0 5.8 0.3  
SINCE 7/1 48.6 27.3 21.3  
SNOWDEPTH AVG. 4  
DAYS >= TRACE 13 5.2 7.8  
DAYS >= 1.0 5 1.8 3.2  
GREATEST  
SNOW DEPTH 12R 02/06  
24 HR TOTAL 4.5 02/04 TO 02/04  
 
DEGREE_DAYS  
HEATING TOTAL 1122 1043 79 779  
SINCE 7/1 5800 5561 239 4940  
COOLING TOTAL 0 0 0 0  
SINCE 1/1 0 0 0 0    
.............................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 5.4  
HIGHEST WIND SPEED/DIRECTION 35/180 DATE 02/16  
HIGHEST GUST SPEED/DIRECTION 48/180 DATE 02/16  
 
SKY COVER  
AVERAGE SKY COVER 0.50  
 
AVERAGE RH (PERCENT) 69  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 0 MIXED PRECIP 0  
HEAVY RAIN 0 RAIN 0  
LIGHT RAIN 2 FREEZING RAIN 0  
LT FREEZING RAIN 1 HAIL 0  
HEAVY SNOW 1 SNOW 4  
LIGHT SNOW 12 SLEET 0  
FOG 17 FOG W/VIS <= 1/4 MILE 3  
HAZE 10  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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