Grinnell May Weather Averages Iowa, United States of America

May Weather Averages for Grinnell

High Temp	21°C	69°F
Low Temp	11°C	52°F
Avg Temp	16°C	61°F
Sunshine Hours	177 hours
Rainfall	153.89 mm	6.06 In
Rain days	10 days
Pressure	1014 mb	30 In

Grinnell May Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	19°C / 67°F	10°C / 50°F	15°C / 58°F	198 hours	106.40 mm / 4.19 In	11 days	1011 mb / 30 In
2009	20°C / 68°F	11°C / 51°F	15°C / 60°F	218 hours	117.69 mm / 4.63 In	7 days	1015 mb / 30 In
2010	21°C / 70°F	11°C / 52°F	16°C / 61°F	250 hours	122.41 mm / 4.82 In	8 days	1014 mb / 30 In
2011	20°C / 68°F	10°C / 51°F	15°C / 59°F	195 hours	115.28 mm / 4.54 In	9 days	1012 mb / 30 In
2012	24°C / 75°F	13°C / 56°F	18°C / 65°F	249 hours	105.97 mm / 4.17 In	5 days	1013 mb / 30 In
2013	20°C / 67°F	11°C / 52°F	15°C / 59°F	141 hours	310.47 mm / 12.22 In	14 days	1013 mb / 30 In
2014	21°C / 69°F	11°C / 52°F	16°C / 60°F	159 hours	125.05 mm / 4.92 In	11 days	1014 mb / 30 In
2015	21°C / 70°F	12°C / 54°F	16°C / 62°F	186 hours	179.83 mm / 7.08 In	15 days	1016 mb / 30 In
2016	20°C / 69°F	11°C / 52°F	16°C / 60°F	180 hours	108.17 mm / 4.26 In	10 days	1015 mb / 30 In
2017	20°C / 68°F	10°C / 51°F	15°C / 59°F	212 hours	126.80 mm / 4.99 In	6 days	1011 mb / 30 In
2018	25°C / 77°F	15°C / 60°F	20°C / 68°F	213 hours	177.77 mm / 7.00 In	13 days	1013 mb / 30 In
2019	19°C / 67°F	10°C / 50°F	15°C / 58°F	142 hours	230.16 mm / 9.06 In	12 days	1013 mb / 30 In
2020	18°C / 65°F	10°C / 51°F	14°C / 58°F	90 hours	154.10 mm / 6.07 In	12 days	1016 mb / 30 In
2021	18°C / 65°F	11°C / 51°F	14°C / 58°F	93 hours	154.14 mm / 6.07 In	15 days	1018 mb / 31 In
2022	21°C / 69°F	12°C / 53°F	16°C / 62°F	131 hours	118.34 mm / 4.66 In	12 days	1012 mb / 30 In
2023	22°C / 72°F	11°C / 52°F	17°C / 62°F	194 hours	92.25 mm / 3.63 In	5 days	1017 mb / 30 In
2024	20°C / 69°F	11°C / 53°F	16°C / 61°F	173 hours	223.76 mm / 8.81 In	6 days	1010 mb / 30 In

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