Storm Lake September Weather Averages Iowa, United States of America

September Weather Averages for Storm Lake

High Temp	25°C	76°F
Low Temp	13°C	56°F
Avg Temp	19°C	66°F
Sunshine Hours	246 hours
Rainfall	89.66 mm	3.53 In
Rain days	5 days
Pressure	1015 mb	30 In

Storm Lake September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	22°C / 72°F	12°C / 54°F	17°C / 63°F	247 hours	51.18 mm / 2.02 In	8 days	1018 mb / 31 In
2009	23°C / 74°F	12°C / 54°F	17°C / 63°F	240 hours	30.09 mm / 1.18 In	2 days	1018 mb / 31 In
2010	21°C / 70°F	11°C / 52°F	16°C / 61°F	199 hours	129.50 mm / 5.10 In	6 days	1014 mb / 30 In
2011	20°C / 67°F	10°C / 50°F	15°C / 59°F	250 hours	31.65 mm / 1.25 In	1 days	1018 mb / 31 In
2012	23°C / 74°F	11°C / 52°F	17°C / 62°F	287 hours	33.97 mm / 1.34 In	4 days	1016 mb / 30 In
2013	25°C / 78°F	14°C / 57°F	19°C / 67°F	281 hours	39.17 mm / 1.54 In	5 days	1013 mb / 30 In
2014	21°C / 70°F	12°C / 53°F	16°C / 61°F	186 hours	137.17 mm / 5.40 In	6 days	1017 mb / 30 In
2015	24°C / 76°F	15°C / 60°F	20°C / 67°F	225 hours	99.91 mm / 3.93 In	5 days	1015 mb / 30 In
2016	24°C / 75°F	15°C / 59°F	19°C / 66°F	239 hours	234.83 mm / 9.25 In	11 days	1016 mb / 30 In
2017	26°C / 79°F	14°C / 58°F	20°C / 68°F	281 hours	78.43 mm / 3.09 In	6 days	1015 mb / 30 In
2018	23°C / 73°F	14°C / 57°F	18°C / 64°F	182 hours	223.56 mm / 8.80 In	9 days	1017 mb / 31 In
2019	25°C / 78°F	15°C / 60°F	20°C / 68°F	216 hours	161.90 mm / 6.37 In	13 days	1014 mb / 30 In
2020	23°C / 74°F	12°C / 54°F	18°C / 64°F	241 hours	59.55 mm / 2.34 In	6 days	1016 mb / 30 In
2021	27°C / 81°F	15°C / 59°F	21°C / 69°F	235 hours	67.20 mm / 2.65 In	4 days	1012 mb / 30 In
2022	27°C / 81°F	14°C / 58°F	20°C / 69°F	292 hours	28.60 mm / 1.13 In	4 days	1015 mb / 30 In
2023	30°C / 86°F	13°C / 56°F	21°C / 71°F	264 hours	75.14 mm / 2.96 In	3 days	1014 mb / 30 In
2024	29°C / 84°F	14°C / 58°F	21°C / 70°F	310 hours	3.95 mm / 0.16 In	0 days	1015 mb / 30 In

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