Grayslake August Weather Averages Illinois, United States of America

August Weather Averages for Grayslake

High Temp	26°C	79°F
Low Temp	18°C	65°F
Avg Temp	22°C	71°F
Sunshine Hours	238 hours
Rainfall	98.94 mm	3.90 In
Rain days	8 days
Pressure	1015 mb	30 In

Grayslake August Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	26°C / 79°F	18°C / 64°F	22°C / 71°F	287 hours	67.74 mm / 2.67 In	4 days	1015 mb / 30 In
2009	24°C / 75°F	17°C / 63°F	20°C / 69°F	222 hours	201.87 mm / 7.95 In	12 days	1015 mb / 30 In
2010	28°C / 83°F	20°C / 68°F	24°C / 75°F	313 hours	33.44 mm / 1.32 In	4 days	1014 mb / 30 In
2011	26°C / 78°F	19°C / 66°F	22°C / 72°F	274 hours	139.59 mm / 5.50 In	5 days	1012 mb / 30 In
2012	26°C / 78°F	18°C / 64°F	22°C / 71°F	258 hours	52.26 mm / 2.06 In	7 days	1015 mb / 30 In
2013	25°C / 78°F	18°C / 64°F	22°C / 71°F	261 hours	57.96 mm / 2.28 In	7 days	1017 mb / 30 In
2014	25°C / 77°F	17°C / 63°F	21°C / 70°F	237 hours	131.32 mm / 5.17 In	9 days	1015 mb / 30 In
2015	26°C / 78°F	17°C / 62°F	21°C / 70°F	243 hours	80.52 mm / 3.17 In	7 days	1015 mb / 30 In
2016	27°C / 80°F	19°C / 67°F	23°C / 73°F	204 hours	133.35 mm / 5.25 In	11 days	1016 mb / 30 In
2017	25°C / 76°F	17°C / 63°F	21°C / 69°F	214 hours	95.32 mm / 3.75 In	8 days	1016 mb / 30 In
2018	27°C / 81°F	20°C / 68°F	23°C / 74°F	236 hours	189.04 mm / 7.44 In	13 days	1015 mb / 30 In
2019	25°C / 77°F	18°C / 64°F	21°C / 71°F	256 hours	87.76 mm / 3.45 In	12 days	1015 mb / 30 In
2020	26°C / 79°F	19°C / 66°F	22°C / 72°F	242 hours	41.58 mm / 1.64 In	5 days	1015 mb / 30 In
2021	28°C / 82°F	20°C / 68°F	24°C / 75°F	188 hours	66.03 mm / 2.60 In	10 days	1015 mb / 30 In
2022	27°C / 80°F	18°C / 64°F	22°C / 72°F	228 hours	84.11 mm / 3.31 In	7 days	1016 mb / 30 In
2023	28°C / 82°F	17°C / 62°F	22°C / 72°F	212 hours	95.65 mm / 3.77 In	6 days	1013 mb / 30 In
2024	25°C / 78°F	17°C / 62°F	21°C / 69°F	217 hours	93.17 mm / 3.67 In	3 days	1016 mb / 30 In

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