Charleston May Weather Averages Illinois, United States of America

May Weather Averages for Charleston

High Temp	23°C	73°F
Low Temp	13°C	56°F
Avg Temp	18°C	64°F
Sunshine Hours	173 hours
Rainfall	130.09 mm	5.12 In
Rain days	10 days
Pressure	1015 mb	30 In

Charleston May Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	20°C / 67°F	11°C / 52°F	15°C / 60°F	200 hours	165.48 mm / 6.51 In	10 days	1011 mb / 30 In
2009	22°C / 72°F	13°C / 55°F	17°C / 63°F	224 hours	118.51 mm / 4.67 In	10 days	1016 mb / 30 In
2010	23°C / 73°F	14°C / 57°F	18°C / 64°F	203 hours	186.50 mm / 7.34 In	14 days	1014 mb / 30 In
2011	22°C / 71°F	12°C / 54°F	17°C / 62°F	154 hours	109.52 mm / 4.31 In	12 days	1012 mb / 30 In
2012	25°C / 78°F	15°C / 59°F	20°C / 68°F	306 hours	73.86 mm / 2.91 In	6 days	1014 mb / 30 In
2013	22°C / 72°F	14°C / 56°F	18°C / 64°F	139 hours	184.65 mm / 7.27 In	15 days	1015 mb / 30 In
2014	22°C / 72°F	13°C / 56°F	18°C / 64°F	148 hours	137.40 mm / 5.41 In	11 days	1015 mb / 30 In
2015	23°C / 74°F	14°C / 57°F	19°C / 66°F	183 hours	107.43 mm / 4.23 In	11 days	1018 mb / 31 In
2016	21°C / 70°F	12°C / 54°F	17°C / 62°F	133 hours	103.41 mm / 4.07 In	13 days	1015 mb / 30 In
2017	21°C / 70°F	12°C / 54°F	17°C / 62°F	196 hours	173.15 mm / 6.82 In	9 days	1012 mb / 30 In
2018	27°C / 81°F	17°C / 63°F	22°C / 72°F	192 hours	92.19 mm / 3.63 In	12 days	1014 mb / 30 In
2019	23°C / 73°F	14°C / 57°F	18°C / 65°F	179 hours	169.66 mm / 6.68 In	13 days	1014 mb / 30 In
2020	20°C / 67°F	11°C / 52°F	16°C / 60°F	91 hours	137.68 mm / 5.42 In	11 days	1016 mb / 30 In
2021	20°C / 68°F	11°C / 52°F	16°C / 60°F	126 hours	121.57 mm / 4.79 In	8 days	1019 mb / 31 In
2022	23°C / 74°F	14°C / 57°F	19°C / 66°F	178 hours	114.00 mm / 4.49 In	8 days	1013 mb / 30 In
2023	23°C / 73°F	12°C / 54°F	18°C / 64°F	184 hours	96.30 mm / 3.79 In	5 days	1017 mb / 31 In
2024	23°C / 73°F	14°C / 58°F	19°C / 66°F	137 hours	155.68 mm / 6.13 In	6 days	1011 mb / 30 In

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