Westchester May Weather Averages Illinois, United States of America

May Weather Averages for Westchester

High Temp	19°C	67°F
Low Temp	11°C	52°F
Avg Temp	15°C	59°F
Sunshine Hours	189 hours
Rainfall	130.27 mm	5.13 In
Rain days	9 days
Pressure	1015 mb	30 In

Westchester May Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	16°C / 61°F	9°C / 47°F	12°C / 54°F	204 hours	56.00 mm / 2.20 In	5 days	1011 mb / 30 In
2009	18°C / 65°F	10°C / 50°F	14°C / 57°F	240 hours	87.36 mm / 3.44 In	7 days	1015 mb / 30 In
2010	19°C / 66°F	11°C / 53°F	15°C / 59°F	207 hours	152.40 mm / 6.00 In	10 days	1015 mb / 30 In
2011	17°C / 63°F	9°C / 49°F	13°C / 56°F	178 hours	126.19 mm / 4.97 In	11 days	1013 mb / 30 In
2012	21°C / 70°F	13°C / 55°F	17°C / 63°F	241 hours	122.73 mm / 4.83 In	10 days	1015 mb / 30 In
2013	19°C / 66°F	11°C / 52°F	15°C / 59°F	191 hours	141.27 mm / 5.56 In	14 days	1015 mb / 30 In
2014	18°C / 65°F	9°C / 49°F	14°C / 57°F	185 hours	105.09 mm / 4.14 In	9 days	1015 mb / 30 In
2015	19°C / 66°F	11°C / 52°F	15°C / 59°F	166 hours	158.83 mm / 6.25 In	11 days	1018 mb / 31 In
2016	18°C / 65°F	10°C / 51°F	14°C / 58°F	203 hours	90.60 mm / 3.57 In	6 days	1015 mb / 30 In
2017	17°C / 62°F	9°C / 48°F	13°C / 55°F	212 hours	100.57 mm / 3.96 In	9 days	1012 mb / 30 In
2018	23°C / 73°F	14°C / 58°F	18°C / 65°F	205 hours	188.31 mm / 7.41 In	11 days	1014 mb / 30 In
2019	18°C / 64°F	9°C / 49°F	14°C / 57°F	154 hours	182.58 mm / 7.19 In	12 days	1014 mb / 30 In
2020	18°C / 65°F	11°C / 52°F	15°C / 59°F	140 hours	135.16 mm / 5.32 In	9 days	1016 mb / 30 In
2021	19°C / 66°F	11°C / 53°F	15°C / 59°F	127 hours	113.09 mm / 4.45 In	7 days	1019 mb / 31 In
2022	21°C / 70°F	13°C / 55°F	17°C / 62°F	173 hours	143.70 mm / 5.66 In	9 days	1014 mb / 30 In
2023	20°C / 69°F	11°C / 51°F	15°C / 60°F	212 hours	84.55 mm / 3.33 In	8 days	1018 mb / 31 In
2024	22°C / 72°F	13°C / 56°F	17°C / 63°F	190 hours	151.85 mm / 5.98 In	7 days	1011 mb / 30 In

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