Great Falls September Weather Averages Montana, United States of America

September Weather Averages for Great Falls

High Temp23°C73°F
Low Temp10°C50°F
Avg Temp16°C61°F
Sunshine Hours270 hours 
Rainfall53.80 mm2.12 In
Rain days4 days 
Pressure1014 mb30 In

 

Great Falls September Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200820°C / 69°F7°C / 44°F13°C / 56°F261 hours46.90 mm / 1.85 In4 days1017 mb / 30 In
200926°C / 79°F11°C / 52°F18°C / 65°F327 hours18.80 mm / 0.74 In2 days1015 mb / 30 In
201020°C / 68°F7°C / 45°F13°C / 56°F252 hours55.30 mm / 2.18 In7 days1014 mb / 30 In
201124°C / 76°F10°C / 51°F17°C / 63°F322 hours7.40 mm / 0.29 In2 days1016 mb / 30 In
201223°C / 74°F10°C / 50°F16°C / 62°F312 hours4.70 mm / 0.19 In2 days1016 mb / 30 In
201323°C / 73°F11°C / 52°F17°C / 62°F255 hours46.80 mm / 1.84 In5 days1010 mb / 30 In
201421°C / 70°F9°C / 48°F14°C / 58°F281 hours42.90 mm / 1.69 In3 days1014 mb / 30 In
201522°C / 72°F11°C / 51°F16°C / 61°F275 hours49.70 mm / 1.96 In6 days1012 mb / 30 In
201620°C / 68°F9°C / 48°F14°C / 57°F239 hours49.30 mm / 1.94 In4 days1015 mb / 30 In
201722°C / 71°F10°C / 50°F15°C / 60°F268 hours49.70 mm / 1.96 In5 days1015 mb / 30 In
201820°C / 68°F9°C / 48°F14°C / 57°F232 hours21.50 mm / 0.85 In3 days1015 mb / 30 In
201920°C / 68°F10°C / 50°F15°C / 58°F206 hours76.20 mm / 3.00 In6 days1013 mb / 30 In
202024°C / 76°F10°C / 51°F17°C / 63°F301 hours13.80 mm / 0.54 In2 days1015 mb / 30 In
202125°C / 78°F11°C / 52°F18°C / 64°F291 hours6.60 mm / 0.26 In2 days1011 mb / 30 In
202226°C / 79°F11°C / 52°F18°C / 65°F242 hours39.90 mm / 1.57 In4 days1013 mb / 30 In
202324°C / 76°F9°C / 48°F17°C / 62°F247 hours57.20 mm / 2.25 In5 days1012 mb / 30 In
202425°C / 77°F11°C / 53°F18°C / 64°F275 hours320.95 mm / 12.64 In3 days1011 mb / 30 In
Montana

 

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