Thunder Bay May Weather Averages Ontario, Canada

May Weather Averages for Thunder Bay

High Temp	12°C	54°F
Low Temp	4°C	40°F
Avg Temp	8°C	47°F
Sunshine Hours	184 hours
Rainfall	81.19 mm	3.20 In
Rain days	6 days
Pressure	1015 mb	30 In

Thunder Bay May Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	10°C / 51°F	3°C / 37°F	7°C / 44°F	163 hours	89.62 mm / 3.53 In	9 days	1012 mb / 30 In
2009	11°C / 52°F	3°C / 37°F	7°C / 45°F	193 hours	82.56 mm / 3.25 In	6 days	1014 mb / 30 In
2010	14°C / 57°F	6°C / 44°F	10°C / 50°F	227 hours	55.01 mm / 2.17 In	3 days	1015 mb / 30 In
2011	12°C / 53°F	4°C / 39°F	8°C / 46°F	162 hours	61.55 mm / 2.42 In	3 days	1015 mb / 30 In
2012	14°C / 57°F	6°C / 43°F	10°C / 50°F	169 hours	166.09 mm / 6.54 In	10 days	1013 mb / 30 In
2013	10°C / 51°F	3°C / 37°F	6°C / 43°F	198 hours	161.79 mm / 6.37 In	10 days	1018 mb / 31 In
2014	12°C / 54°F	4°C / 39°F	8°C / 46°F	178 hours	77.33 mm / 3.04 In	7 days	1014 mb / 30 In
2015	13°C / 55°F	4°C / 40°F	9°C / 47°F	220 hours	107.18 mm / 4.22 In	8 days	1017 mb / 31 In
2016	13°C / 55°F	5°C / 40°F	9°C / 48°F	191 hours	62.20 mm / 2.45 In	6 days	1015 mb / 30 In
2017	11°C / 52°F	4°C / 39°F	7°C / 45°F	156 hours	66.76 mm / 2.63 In	7 days	1013 mb / 30 In
2018	15°C / 59°F	5°C / 42°F	10°C / 50°F	250 hours	61.55 mm / 2.42 In	6 days	1014 mb / 30 In
2019	11°C / 52°F	3°C / 37°F	7°C / 44°F	196 hours	56.41 mm / 2.22 In	6 days	1016 mb / 30 In
2020	12°C / 54°F	4°C / 40°F	8°C / 47°F	188 hours	43.27 mm / 1.70 In	3 days	1017 mb / 31 In
2021	12°C / 54°F	5°C / 40°F	9°C / 47°F	112 hours	45.40 mm / 1.79 In	5 days	1019 mb / 31 In
2022	12°C / 54°F	4°C / 40°F	8°C / 46°F	160 hours	93.16 mm / 3.67 In	6 days	1013 mb / 30 In
2023	14°C / 57°F	5°C / 41°F	9°C / 49°F	179 hours	39.95 mm / 1.57 In	7 days	1019 mb / 31 In
2024	12°C / 54°F	5°C / 42°F	9°C / 47°F	158 hours	118.85 mm / 4.68 In	10 days	1011 mb / 30 In

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