Summit August Weather Averages Illinois, United States of America

August Weather Averages for Summit

High Temp	27°C	81°F
Low Temp	19°C	67°F
Avg Temp	23°C	73°F
Sunshine Hours	247 hours
Rainfall	96.38 mm	3.79 In
Rain days	8 days
Pressure	1015 mb	30 In

Summit August Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	27°C / 80°F	18°C / 65°F	22°C / 72°F	314 hours	66.80 mm / 2.63 In	6 days	1015 mb / 30 In
2009	25°C / 76°F	18°C / 64°F	21°C / 70°F	218 hours	145.10 mm / 5.71 In	12 days	1016 mb / 30 In
2010	28°C / 83°F	20°C / 68°F	24°C / 75°F	310 hours	66.40 mm / 2.61 In	5 days	1014 mb / 30 In
2011	27°C / 80°F	19°C / 66°F	23°C / 73°F	300 hours	121.37 mm / 4.78 In	5 days	1013 mb / 30 In
2012	27°C / 80°F	18°C / 65°F	22°C / 72°F	268 hours	125.91 mm / 4.96 In	8 days	1015 mb / 30 In
2013	26°C / 79°F	18°C / 65°F	22°C / 72°F	285 hours	56.89 mm / 2.24 In	6 days	1017 mb / 30 In
2014	25°C / 78°F	18°C / 64°F	21°C / 71°F	234 hours	115.22 mm / 4.54 In	9 days	1015 mb / 30 In
2015	26°C / 78°F	18°C / 64°F	22°C / 71°F	265 hours	61.29 mm / 2.41 In	6 days	1015 mb / 30 In
2016	27°C / 80°F	20°C / 68°F	23°C / 74°F	224 hours	154.23 mm / 6.07 In	9 days	1016 mb / 30 In
2017	26°C / 78°F	19°C / 66°F	22°C / 72°F	254 hours	82.13 mm / 3.23 In	8 days	1016 mb / 30 In
2018	28°C / 82°F	21°C / 70°F	24°C / 75°F	250 hours	144.18 mm / 5.68 In	14 days	1015 mb / 30 In
2019	26°C / 79°F	20°C / 68°F	23°C / 73°F	248 hours	106.52 mm / 4.19 In	12 days	1015 mb / 30 In
2020	28°C / 83°F	21°C / 70°F	25°C / 76°F	234 hours	29.10 mm / 1.15 In	5 days	1015 mb / 30 In
2021	29°C / 84°F	21°C / 70°F	25°C / 77°F	199 hours	80.60 mm / 3.17 In	10 days	1016 mb / 30 In
2022	28°C / 83°F	19°C / 67°F	24°C / 75°F	222 hours	92.34 mm / 3.64 In	8 days	1015 mb / 30 In
2023	29°C / 83°F	19°C / 65°F	23°C / 74°F	216 hours	73.75 mm / 2.90 In	7 days	1013 mb / 30 In
2024	28°C / 82°F	19°C / 67°F	23°C / 74°F	228 hours	87.13 mm / 3.43 In	5 days	1016 mb / 30 In

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