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	331 hours
Rainfall	9.45 mm	0.37 In
Rain days	2 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
2008	25°C / 77°F	10°C / 51°F	17°C / 63°F	333 hours	15.80 mm / 0.62 In	2 days	1012 mb / 30 In
2009	29°C / 83°F	13°C / 55°F	20°C / 68°F	359 hours	0.50 mm / 0.02 In	0 days	1012 mb / 30 In
2010	24°C / 76°F	9°C / 49°F	16°C / 61°F	342 hours	1.40 mm / 0.06 In	1 days	1013 mb / 30 In
2011	23°C / 73°F	10°C / 51°F	16°C / 61°F	324 hours	14.50 mm / 0.57 In	3 days	1013 mb / 30 In
2012	26°C / 79°F	13°C / 55°F	19°C / 67°F	359 hours	2.50 mm / 0.10 In	1 days	1012 mb / 30 In
2013	27°C / 80°F	14°C / 57°F	20°C / 68°F	327 hours	9.40 mm / 0.37 In	1 days	1013 mb / 30 In
2014	27°C / 81°F	14°C / 57°F	20°C / 69°F	352 hours	2.70 mm / 0.11 In	0 days	1013 mb / 30 In
2015	23°C / 73°F	12°C / 54°F	17°C / 63°F	294 hours	23.30 mm / 0.92 In	2 days	1012 mb / 30 In
2016	24°C / 75°F	13°C / 56°F	18°C / 64°F	321 hours	11.50 mm / 0.45 In	3 days	1013 mb / 30 In
2017	26°C / 79°F	14°C / 57°F	19°C / 67°F	316 hours	11.80 mm / 0.46 In	2 days	1012 mb / 30 In
2018	25°C / 76°F	15°C / 59°F	19°C / 67°F	336 hours	3.50 mm / 0.14 In	0 days	1013 mb / 30 In
2019	22°C / 71°F	13°C / 56°F	17°C / 63°F	285 hours	46.10 mm / 1.81 In	8 days	1012 mb / 30 In
2020	27°C / 81°F	16°C / 61°F	21°C / 71°F	347 hours	4.30 mm / 0.17 In	1 days	1012 mb / 30 In
2021	26°C / 78°F	14°C / 58°F	20°C / 67°F	343 hours	1.50 mm / 0.06 In	1 days	1013 mb / 30 In
2022	27°C / 81°F	13°C / 55°F	19°C / 67°F	352 hours	0.80 mm / 0.03 In	0 days	1012 mb / 30 In
2023	24°C / 75°F	11°C / 52°F	17°C / 62°F	291 hours	14.40 mm / 0.57 In	1 days	1014 mb / 30 In
2024	24°C / 75°F	11°C / 52°F	17°C / 63°F	350 hours	2.93 mm / 0.12 In	0 days	1013 mb / 30 In

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