216  
CXUS53 KUNR 011536  
CLMGCC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RAPID CITY SD  
936 AM MDT WED OCT 01 2025  
   
...............................
 
 
...THE GILLETTE AIRPORT WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 9999 TO 9999  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE DATE(S)  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
HIGHEST 91 09/10 99 09/02  
LOWEST 34 09/05 32 09/30  
AVG. MAXIMUM 80.4 74.7 5.7 84.9  
AVG. MINIMUM 47.8 44.2 3.6 47.8  
MEAN 64.1 59.4 4.7 66.4  
DAYS MAX >= 90 2 14  
DAYS MAX <= 32 0 0  
DAYS MIN <= 32 0 1  
DAYS MIN <= 0 0 0  
 
PRECIPITATION (INCHES)  
TOTALS 0.43 0.98 -0.55 0.12  
DAILY AVG. 0.01 0.03 -0.02 0.00  
DAYS >= .01 5 1  
DAYS >= .10 2 1  
DAYS >= .50 0 0  
DAYS >= 1.00 0 0  
GREATEST  
24 HR. TOTAL 0.24 09/11 TO 09/12 0.12  
 
DEGREE DAYS  
HEATING TOTAL 79 215 -136 72  
SINCE 7/1 99 270 -171 MM  
COOLING TOTAL 57 48 9 119  
SINCE 1/1 603 516 87 MM    
............................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 8.5  
HIGHEST WIND SPEED/DIRECTION 40/240 DATE 09/15  
HIGHEST GUST SPEED/DIRECTION 53/230 DATE 09/15  
 
AVERAGE RH (PERCENT) 50  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 7 MIXED PRECIP MM  
HEAVY RAIN 2 RAIN 3  
LIGHT RAIN 7 FREEZING RAIN MM  
LT FREEZING RAIN MM HAIL MM  
HEAVY SNOW MM SNOW MM  
LIGHT SNOW MM SLEET MM  
FOG 4 FOG W/VIS <= 1/4 MILE 1  
HAZE 2  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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