Cornwall May Weather Averages Ontario, Canada

May Weather Averages for Cornwall

High Temp	19°C	65°F
Low Temp	8°C	46°F
Avg Temp	13°C	56°F
Sunshine Hours	170 hours
Rainfall	104.94 mm	4.13 In
Rain days	9 days
Pressure	1015 mb	30 In

Cornwall May Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	17°C / 62°F	6°C / 43°F	11°C / 53°F	198 hours	82.73 mm / 3.26 In	9 days	1010 mb / 30 In
2009	16°C / 61°F	7°C / 45°F	12°C / 53°F	181 hours	176.20 mm / 6.94 In	12 days	1015 mb / 30 In
2010	20°C / 68°F	9°C / 47°F	15°C / 58°F	208 hours	52.49 mm / 2.07 In	9 days	1015 mb / 30 In
2011	18°C / 64°F	8°C / 46°F	13°C / 55°F	133 hours	197.47 mm / 7.77 In	15 days	1015 mb / 30 In
2012	20°C / 68°F	9°C / 49°F	15°C / 59°F	225 hours	90.75 mm / 3.57 In	9 days	1015 mb / 30 In
2013	19°C / 67°F	9°C / 48°F	14°C / 57°F	185 hours	100.42 mm / 3.95 In	10 days	1016 mb / 30 In
2014	18°C / 65°F	8°C / 46°F	13°C / 55°F	180 hours	108.48 mm / 4.27 In	10 days	1015 mb / 30 In
2015	21°C / 70°F	10°C / 50°F	16°C / 60°F	229 hours	65.48 mm / 2.58 In	8 days	1018 mb / 31 In
2016	19°C / 65°F	8°C / 46°F	13°C / 56°F	190 hours	35.72 mm / 1.41 In	7 days	1014 mb / 30 In
2017	16°C / 61°F	7°C / 45°F	12°C / 54°F	122 hours	243.77 mm / 9.60 In	11 days	1012 mb / 30 In
2018	21°C / 69°F	9°C / 48°F	15°C / 59°F	219 hours	74.47 mm / 2.93 In	11 days	1016 mb / 30 In
2019	16°C / 60°F	6°C / 43°F	11°C / 52°F	99 hours	140.06 mm / 5.51 In	10 days	1014 mb / 30 In
2020	17°C / 63°F	7°C / 44°F	12°C / 54°F	129 hours	59.31 mm / 2.34 In	8 days	1015 mb / 30 In
2021	17°C / 63°F	7°C / 45°F	12°C / 54°F	140 hours	29.90 mm / 1.18 In	3 days	1018 mb / 31 In
2022	20°C / 69°F	9°C / 48°F	15°C / 58°F	155 hours	112.50 mm / 4.43 In	10 days	1017 mb / 30 In
2023	19°C / 66°F	6°C / 43°F	12°C / 54°F	226 hours	106.60 mm / 4.20 In	6 days	1016 mb / 30 In
2024	18°C / 65°F	10°C / 50°F	14°C / 57°F	93 hours	85.42 mm / 3.36 In	5 days	1012 mb / 30 In

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