Ontario May Weather Averages California, United States of America

May Weather Averages for Ontario

High Temp	25°C	77°F
Low Temp	13°C	55°F
Avg Temp	19°C	65°F
Sunshine Hours	320 hours
Rainfall	7.35 mm	0.29 In
Rain days	1 days
Pressure	1013 mb	30 In

Ontario May Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	27°C / 81°F	12°C / 54°F	19°C / 67°F	356 hours	0.40 mm / 0.02 In	0 days	1012 mb / 30 In
2010	23°C / 74°F	9°C / 49°F	16°C / 61°F	347 hours	1.10 mm / 0.04 In	1 days	1013 mb / 30 In
2011	23°C / 73°F	11°C / 51°F	16°C / 62°F	320 hours	6.40 mm / 0.25 In	2 days	1013 mb / 30 In
2012	26°C / 79°F	13°C / 56°F	19°C / 67°F	367 hours	0.10 mm / 0.00 In	0 days	1012 mb / 30 In
2013	27°C / 80°F	14°C / 56°F	20°C / 68°F	331 hours	5.60 mm / 0.22 In	1 days	1013 mb / 30 In
2014	28°C / 82°F	14°C / 57°F	20°C / 69°F	349 hours	0.50 mm / 0.02 In	0 days	1013 mb / 30 In
2015	23°C / 73°F	12°C / 54°F	17°C / 63°F	259 hours	30.00 mm / 1.18 In	2 days	1012 mb / 30 In
2016	23°C / 74°F	13°C / 55°F	18°C / 64°F	322 hours	8.70 mm / 0.34 In	1 days	1013 mb / 30 In
2017	26°C / 78°F	14°C / 57°F	19°C / 67°F	295 hours	11.40 mm / 0.45 In	1 days	1012 mb / 30 In
2018	24°C / 76°F	15°C / 59°F	19°C / 66°F	311 hours	3.30 mm / 0.13 In	0 days	1013 mb / 30 In
2019	22°C / 71°F	13°C / 56°F	17°C / 63°F	284 hours	29.00 mm / 1.14 In	3 days	1012 mb / 30 In
2020	28°C / 82°F	17°C / 62°F	22°C / 71°F	342 hours	5.30 mm / 0.21 In	1 days	1012 mb / 30 In
2021	25°C / 78°F	14°C / 58°F	20°C / 67°F	337 hours	0.70 mm / 0.03 In	0 days	1013 mb / 30 In
2022	27°C / 81°F	13°C / 56°F	19°C / 67°F	356 hours	0.00 mm / 0.00 In	0 days	1012 mb / 30 In
2023	24°C / 75°F	12°C / 54°F	17°C / 63°F	285 hours	16.70 mm / 0.66 In	1 days	1013 mb / 30 In
2024	25°C / 77°F	12°C / 54°F	18°C / 64°F	342 hours	2.76 mm / 0.11 In	0 days	1013 mb / 30 In
2025	25°C / 77°F	13°C / 56°F	19°C / 65°F	234 hours	3.02 mm / 0.12 In	1 days	1013 mb / 30 In

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