Rapid City September Weather Averages South Dakota, United States of America

September Weather Averages for Rapid City

High Temp	25°C	77°F
Low Temp	13°C	55°F
Avg Temp	18°C	65°F
Sunshine Hours	296 hours
Rainfall	39.72 mm	1.56 In
Rain days	3 days
Pressure	1013 mb	30 In

Rapid City September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	23°C / 73°F	10°C / 50°F	16°C / 60°F	282 hours	52.30 mm / 2.06 In	5 days	1016 mb / 30 In
2009	25°C / 76°F	12°C / 53°F	18°C / 64°F	313 hours	43.11 mm / 1.70 In	4 days	1015 mb / 30 In
2010	23°C / 74°F	9°C / 49°F	16°C / 61°F	300 hours	38.95 mm / 1.53 In	3 days	1013 mb / 30 In
2011	23°C / 73°F	11°C / 52°F	17°C / 62°F	322 hours	25.19 mm / 0.99 In	3 days	1017 mb / 30 In
2012	25°C / 77°F	12°C / 54°F	18°C / 65°F	346 hours	3.00 mm / 0.12 In	0 days	1015 mb / 30 In
2013	25°C / 77°F	14°C / 57°F	19°C / 66°F	305 hours	49.56 mm / 1.95 In	5 days	1011 mb / 30 In
2014	22°C / 72°F	11°C / 51°F	16°C / 61°F	271 hours	81.47 mm / 3.21 In	5 days	1014 mb / 30 In
2015	26°C / 79°F	14°C / 57°F	20°C / 67°F	277 hours	4.50 mm / 0.18 In	1 days	1012 mb / 30 In
2016	23°C / 74°F	12°C / 54°F	17°C / 63°F	267 hours	31.66 mm / 1.25 In	3 days	1014 mb / 30 In
2017	24°C / 74°F	11°C / 53°F	17°C / 63°F	285 hours	37.75 mm / 1.49 In	3 days	1014 mb / 30 In
2018	23°C / 73°F	12°C / 54°F	17°C / 63°F	290 hours	39.11 mm / 1.54 In	3 days	1014 mb / 30 In
2019	24°C / 75°F	13°C / 55°F	18°C / 64°F	254 hours	78.84 mm / 3.10 In	7 days	1011 mb / 30 In
2020	24°C / 75°F	12°C / 53°F	18°C / 64°F	311 hours	36.11 mm / 1.42 In	1 days	1015 mb / 30 In
2021	28°C / 82°F	14°C / 58°F	21°C / 69°F	287 hours	34.00 mm / 1.34 In	2 days	1011 mb / 30 In
2022	28°C / 82°F	15°C / 58°F	21°C / 70°F	305 hours	8.00 mm / 0.31 In	3 days	1013 mb / 30 In
2023	27°C / 80°F	14°C / 57°F	20°C / 67°F	279 hours	98.95 mm / 3.90 In	4 days	1012 mb / 30 In
2024	30°C / 86°F	16°C / 62°F	23°C / 73°F	327 hours	25.40 mm / 1.00 In	0 days	1011 mb / 30 In

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