Marshalltown September Weather Averages Iowa, United States of America

September Weather Averages for Marshalltown

High Temp	25°C	76°F
Low Temp	13°C	56°F
Avg Temp	19°C	66°F
Sunshine Hours	241 hours
Rainfall	95.16 mm	3.75 In
Rain days	5 days
Pressure	1016 mb	30 In

Marshalltown September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	23°C / 73°F	12°C / 54°F	17°C / 63°F	235 hours	109.95 mm / 4.33 In	7 days	1018 mb / 31 In
2009	23°C / 73°F	12°C / 53°F	17°C / 62°F	238 hours	94.77 mm / 3.73 In	5 days	1019 mb / 31 In
2010	22°C / 71°F	12°C / 53°F	17°C / 62°F	208 hours	111.55 mm / 4.39 In	4 days	1015 mb / 30 In
2011	20°C / 68°F	10°C / 51°F	15°C / 59°F	224 hours	36.44 mm / 1.43 In	3 days	1017 mb / 31 In
2012	23°C / 74°F	11°C / 51°F	16°C / 62°F	292 hours	80.12 mm / 3.15 In	4 days	1016 mb / 30 In
2013	26°C / 79°F	14°C / 57°F	20°C / 67°F	276 hours	42.87 mm / 1.69 In	5 days	1015 mb / 30 In
2014	22°C / 71°F	11°C / 52°F	16°C / 62°F	220 hours	112.02 mm / 4.41 In	4 days	1017 mb / 31 In
2015	26°C / 78°F	15°C / 59°F	20°C / 68°F	226 hours	106.51 mm / 4.19 In	6 days	1016 mb / 30 In
2016	25°C / 76°F	15°C / 58°F	19°C / 67°F	228 hours	182.54 mm / 7.19 In	9 days	1017 mb / 31 In
2017	27°C / 80°F	14°C / 57°F	20°C / 68°F	275 hours	49.75 mm / 1.96 In	6 days	1016 mb / 30 In
2018	23°C / 73°F	14°C / 57°F	18°C / 65°F	173 hours	208.77 mm / 8.22 In	9 days	1018 mb / 31 In
2019	25°C / 77°F	16°C / 60°F	20°C / 69°F	202 hours	188.40 mm / 7.42 In	12 days	1015 mb / 30 In
2020	22°C / 71°F	12°C / 54°F	17°C / 62°F	234 hours	93.66 mm / 3.69 In	7 days	1017 mb / 31 In
2021	28°C / 83°F	15°C / 59°F	21°C / 70°F	280 hours	38.60 mm / 1.52 In	4 days	1013 mb / 30 In
2022	26°C / 79°F	14°C / 57°F	20°C / 67°F	262 hours	41.10 mm / 1.62 In	4 days	1016 mb / 30 In
2023	30°C / 87°F	13°C / 55°F	21°C / 70°F	228 hours	66.80 mm / 2.63 In	2 days	1015 mb / 30 In
2024	27°C / 81°F	13°C / 56°F	20°C / 68°F	288 hours	68.59 mm / 2.70 In	2 days	1017 mb / 30 In

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