Ottumwa September Weather Averages Iowa, United States of America

September Weather Averages for Ottumwa

High Temp	25°C	78°F
Low Temp	14°C	57°F
Avg Temp	20°C	67°F
Sunshine Hours	249 hours
Rainfall	114.36 mm	4.50 In
Rain days	6 days
Pressure	1016 mb	30 In

Ottumwa September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	23°C / 73°F	13°C / 55°F	18°C / 64°F	214 hours	190.19 mm / 7.49 In	6 days	1019 mb / 31 In
2009	23°C / 74°F	12°C / 54°F	18°C / 64°F	232 hours	81.82 mm / 3.22 In	4 days	1018 mb / 31 In
2010	23°C / 73°F	13°C / 56°F	18°C / 64°F	215 hours	172.81 mm / 6.80 In	8 days	1015 mb / 30 In
2011	21°C / 69°F	11°C / 52°F	16°C / 61°F	237 hours	41.90 mm / 1.65 In	5 days	1017 mb / 31 In
2012	23°C / 74°F	11°C / 52°F	17°C / 63°F	273 hours	67.32 mm / 2.65 In	5 days	1016 mb / 30 In
2013	27°C / 80°F	14°C / 58°F	20°C / 69°F	281 hours	57.33 mm / 2.26 In	5 days	1015 mb / 30 In
2014	23°C / 73°F	12°C / 54°F	17°C / 63°F	206 hours	129.12 mm / 5.08 In	8 days	1017 mb / 31 In
2015	26°C / 80°F	16°C / 61°F	21°C / 70°F	234 hours	116.16 mm / 4.57 In	5 days	1016 mb / 30 In
2016	26°C / 79°F	16°C / 60°F	21°C / 69°F	240 hours	135.92 mm / 5.35 In	7 days	1017 mb / 31 In
2017	27°C / 81°F	15°C / 59°F	21°C / 70°F	298 hours	71.44 mm / 2.81 In	4 days	1017 mb / 30 In
2018	24°C / 75°F	15°C / 59°F	19°C / 66°F	191 hours	213.12 mm / 8.39 In	13 days	1018 mb / 31 In
2019	26°C / 79°F	17°C / 63°F	22°C / 71°F	245 hours	262.74 mm / 10.34 In	9 days	1015 mb / 30 In
2020	23°C / 73°F	13°C / 55°F	18°C / 64°F	207 hours	133.57 mm / 5.26 In	8 days	1017 mb / 31 In
2021	28°C / 83°F	16°C / 61°F	22°C / 71°F	295 hours	57.10 mm / 2.25 In	2 days	1014 mb / 30 In
2022	27°C / 81°F	15°C / 59°F	21°C / 69°F	266 hours	81.10 mm / 3.19 In	7 days	1016 mb / 30 In
2023	31°C / 88°F	14°C / 56°F	22°C / 72°F	262 hours	64.88 mm / 2.55 In	4 days	1015 mb / 30 In
2024	28°C / 82°F	14°C / 57°F	20°C / 69°F	294 hours	143.37 mm / 5.64 In	3 days	1016 mb / 30 In

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