Waterloo September Weather Averages Iowa, United States of America

September Weather Averages for Waterloo

High Temp	24°C	76°F
Low Temp	13°C	55°F
Avg Temp	18°C	65°F
Sunshine Hours	235 hours
Rainfall	107.41 mm	4.23 In
Rain days	6 days
Pressure	1016 mb	30 In

Waterloo 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	236 hours	103.23 mm / 4.06 In	9 days	1018 mb / 31 In
2009	23°C / 73°F	12°C / 53°F	17°C / 62°F	253 hours	48.11 mm / 1.89 In	2 days	1019 mb / 31 In
2010	22°C / 71°F	12°C / 53°F	16°C / 61°F	206 hours	138.86 mm / 5.47 In	6 days	1014 mb / 30 In
2011	20°C / 67°F	10°C / 50°F	15°C / 59°F	205 hours	57.29 mm / 2.26 In	5 days	1017 mb / 31 In
2012	23°C / 73°F	11°C / 51°F	16°C / 62°F	283 hours	32.31 mm / 1.27 In	4 days	1016 mb / 30 In
2013	25°C / 77°F	13°C / 56°F	19°C / 66°F	271 hours	63.32 mm / 2.49 In	7 days	1015 mb / 30 In
2014	22°C / 71°F	11°C / 52°F	16°C / 61°F	240 hours	115.29 mm / 4.54 In	6 days	1017 mb / 31 In
2015	26°C / 78°F	15°C / 59°F	20°C / 68°F	224 hours	111.38 mm / 4.39 In	6 days	1016 mb / 30 In
2016	24°C / 75°F	14°C / 58°F	19°C / 66°F	211 hours	253.94 mm / 10.00 In	8 days	1017 mb / 31 In
2017	26°C / 78°F	14°C / 57°F	19°C / 67°F	284 hours	67.86 mm / 2.67 In	4 days	1016 mb / 30 In
2018	22°C / 72°F	14°C / 57°F	18°C / 64°F	177 hours	234.65 mm / 9.24 In	10 days	1018 mb / 31 In
2019	24°C / 76°F	15°C / 60°F	20°C / 68°F	161 hours	233.16 mm / 9.18 In	12 days	1015 mb / 30 In
2020	21°C / 70°F	12°C / 53°F	16°C / 61°F	213 hours	119.04 mm / 4.69 In	7 days	1017 mb / 31 In
2021	27°C / 81°F	14°C / 58°F	21°C / 69°F	263 hours	45.78 mm / 1.80 In	5 days	1013 mb / 30 In
2022	26°C / 79°F	13°C / 56°F	19°C / 67°F	267 hours	37.00 mm / 1.46 In	3 days	1016 mb / 30 In
2023	30°C / 86°F	12°C / 54°F	21°C / 70°F	219 hours	74.14 mm / 2.92 In	2 days	1015 mb / 30 In
2024	27°C / 81°F	13°C / 55°F	20°C / 67°F	278 hours	86.47 mm / 3.40 In	1 days	1017 mb / 31 In

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