Spearfish September Weather Averages South Dakota, United States of America

September Weather Averages for Spearfish

High Temp	24°C	76°F
Low Temp	11°C	52°F
Avg Temp	17°C	63°F
Sunshine Hours	287 hours
Rainfall	46.57 mm	1.83 In
Rain days	5 days
Pressure	1013 mb	30 In

Spearfish September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	22°C / 71°F	8°C / 47°F	15°C / 58°F	258 hours	47.20 mm / 1.86 In	5 days	1016 mb / 30 In
2009	25°C / 76°F	10°C / 51°F	17°C / 63°F	296 hours	24.94 mm / 0.98 In	5 days	1015 mb / 30 In
2010	23°C / 73°F	8°C / 46°F	15°C / 59°F	288 hours	35.22 mm / 1.39 In	2 days	1013 mb / 30 In
2011	22°C / 72°F	9°C / 49°F	15°C / 60°F	320 hours	33.40 mm / 1.31 In	3 days	1016 mb / 30 In
2012	24°C / 75°F	10°C / 50°F	17°C / 62°F	329 hours	6.90 mm / 0.27 In	4 days	1015 mb / 30 In
2013	24°C / 75°F	12°C / 53°F	18°C / 64°F	299 hours	67.41 mm / 2.65 In	7 days	1011 mb / 30 In
2014	21°C / 70°F	9°C / 48°F	15°C / 59°F	259 hours	108.05 mm / 4.25 In	5 days	1014 mb / 30 In
2015	26°C / 78°F	13°C / 55°F	19°C / 66°F	273 hours	29.30 mm / 1.15 In	2 days	1012 mb / 30 In
2016	22°C / 72°F	11°C / 52°F	16°C / 61°F	261 hours	77.36 mm / 3.05 In	10 days	1014 mb / 30 In
2017	23°C / 73°F	10°C / 50°F	16°C / 61°F	270 hours	57.92 mm / 2.28 In	7 days	1014 mb / 30 In
2018	23°C / 73°F	10°C / 50°F	16°C / 61°F	285 hours	55.50 mm / 2.19 In	6 days	1014 mb / 30 In
2019	23°C / 74°F	11°C / 52°F	17°C / 62°F	244 hours	57.54 mm / 2.27 In	5 days	1011 mb / 30 In
2020	24°C / 74°F	10°C / 50°F	17°C / 62°F	286 hours	32.38 mm / 1.27 In	3 days	1015 mb / 30 In
2021	27°C / 81°F	12°C / 54°F	19°C / 67°F	287 hours	30.40 mm / 1.20 In	5 days	1012 mb / 30 In
2022	28°C / 82°F	13°C / 55°F	20°C / 67°F	303 hours	28.60 mm / 1.13 In	4 days	1013 mb / 30 In
2023	26°C / 78°F	12°C / 54°F	18°C / 65°F	269 hours	89.78 mm / 3.53 In	5 days	1012 mb / 30 In
2024	29°C / 84°F	15°C / 58°F	21°C / 70°F	324 hours	10.46 mm / 0.41 In	0 days	1011 mb / 30 In

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