089  
CXUS55 KTFX 010936  
CLMHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
336 AM MDT SAT JUL 1 2017  
   
...............................
 
 
   
..THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF JUNE 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 103 06/27/2015  
LOW 30 06/10/1999  
06/13/1969  
HIGHEST 98 06/26 80 18 94 06/28  
LOWEST 40 06/11 44 -4 39 06/17  
AVG. MAXIMUM 78.4 75.7 2.7 81.4  
AVG. MINIMUM 50.1 48.5 1.6 51.6  
MEAN 64.2 62.1 2.1 66.5  
DAYS MAX >= 90 2 2.4 -0.4 8  
DAYS MAX <= 32 0 0.0 0.0 0  
DAYS MIN <= 32 0 0.1 -0.1 0  
DAYS MIN <= 0 0 0.0 0.0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 5.63 1892  
MINIMUM 0.08 1985  
TOTALS 1.25 2.06 -0.81 1.38  
DAYS >= .01 7 11.2 -4.2  
DAYS >= .10 3 5.6 -2.6  
DAYS >= .50 1 1.2 -0.2  
DAYS >= 1.00 0 0.2 -0.2  
GREATEST  
24 HR. TOTAL 0.62 06/12 TO 06/12  
 
SNOWFALL (INCHES)  
RECORDS  
TOTAL 2.7 1969  
24 HR TOTAL 2.7 06/12/1969 TO 06/12/1969  
TOTALS 0.0 T 0.0 T  
SINCE 7/1 51.5 38.1 13.4  
SNOWDEPTH AVG. 0  
DAYS >= TRACE 0 0.1 -0.1  
DAYS >= 1.0 0 0.0 0.0  
GREATEST  
SNOW DEPTH 0 MM  
24 HR TOTAL 0.0 06/30 TO 06/30  
 
DEGREE_DAYS  
HEATING TOTAL 76 136 -60 54  
SINCE 7/1 7426 7541 -115 6550  
COOLING TOTAL 59 49 10 106  
SINCE 1/1 68 57 11 106    
.............................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 8.6  
HIGHEST WIND SPEED/DIRECTION 38/270 DATE 06/26  
HIGHEST GUST SPEED/DIRECTION 47/270 DATE 06/26  
 
SKY COVER  
AVERAGE SKY COVER 0.20  
 
AVERAGE RH (PERCENT) 50  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 0 MIXED PRECIP 0  
HEAVY RAIN 1 RAIN 2  
LIGHT RAIN 6 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 0  
LIGHT SNOW 0 SLEET 0  
FOG 2 FOG W/VIS <= 1/4 MILE 0  
HAZE 1  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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