


Climatological Report (Monthly)
Issued by NWS
Issued by NWS
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. $$