839  
CXUS55 KTFX 010913  
CLMGTF  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
312 AM MDT FRI SEP 1 2017  
   
...............................
 
 
   
..THE GREAT FALLS MT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1886 TO 2017  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
.........................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 106 08/24/1969  
08/05/1961  
LOW 30 08/24/1992  
HIGHEST 96 08/30 84 12 97  
LOWEST 44 08/06 48 -4 37  
AVG. MAXIMUM 83.5 82.3 1.2 82.3  
AVG. MINIMUM 50.4 50.4 0.0 48.5  
MEAN 67.0 66.3 0.7 65.4  
DAYS MAX >= 90 7 6.9 0.1  
DAYS MAX <= 32 0 0.0 0.0  
DAYS MIN <= 32 0 0.1 -0.1  
DAYS MIN <= 0 0 0.0 0.0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 5.34 1933  
MINIMUM 0.03 1969  
TOTALS 0.06 1.57 -1.51 1.12  
DAYS >= .01 3 7.9 -4.9  
DAYS >= .10 0 3.6 -3.6  
DAYS >= .50 0 1.0 -1.0  
DAYS >= 1.00 0 0.3 -0.3  
GREATEST  
24 HR. TOTAL 0.03 08/04 TO 08/04  
 
SNOWFALL (INCHES)  
RECORDS  
TOTAL 8.3 1992  
24 HR TOTAL 6.6 08/22/1992 TO 08/23/1992  
TOTALS 0.0 0.3 -0.3 T  
SINCE 7/1 0.0 0.3 -0.3 T  
SNOWDEPTH AVG. 0  
DAYS >= TRACE 0 0.1 -0.1  
DAYS >= 1.0 0 0.1 -0.1  
GREATEST  
SNOW DEPTH 0 MM  
24 HR TOTAL 0.0 08/31 TO 08/31  
 
DEGREE_DAYS  
HEATING TOTAL 28 71 -43 57  
SINCE 7/1 29 121 -92 101  
COOLING TOTAL 96 113 -17 78  
SINCE 1/1 409 276 133 242    
..........................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 7.7  
HIGHEST WIND SPEED/DIRECTION 38/260 DATE 08/13  
HIGHEST GUST SPEED/DIRECTION 51/260 DATE 08/13  
 
SKY COVER  
AVERAGE SKY COVER 0.10  
 
AVERAGE RH (PERCENT) 40  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 0 MIXED PRECIP 0  
HEAVY RAIN 0 RAIN 0  
LIGHT RAIN 8 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 0  
LIGHT SNOW 0 SLEET 0  
FOG 1 FOG W/VIS <= 1/4 MILE 0  
HAZE 12  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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