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Climate and Average Weather Year Round in Thunder Bay Ontario, Canada. In Thunder Bay, the summers are comfortable, the winters are frigid and snowy, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 0°F to 75°F and is rarely below -19°F or above 83°F.
- Days of Hot Weather in Thunder Bay
- When Thunder Bay Has Frosty Weather
- How Often Thunder Bay Has Cold Temperatures
The hottest days at Thunder Bay usually have temperatures peaking in the low-thirties Celsius. The city averages six days a year with thirty-degree weather, which can show up from May to September. The temperature does climb over 35 °C (95 °F), but that's uncommon, happening on average just once every three years.
Thunder Bay typically has 203 days a year when the minimum temperature is at 0 °C or below. The average date for the last frost in spring is May 30. Frost normally returns here on September 19. The frost-free period extends for 111 days on average between the final spring frost and the first fall frost.
Thunder Bay's chilliest winter nights have lows below -30 °C (-22 °F). The city averages eight nights a year, mainly in January and February, when the temperature gets that cold. From October to April, Thunder Bay can remain below freezing all day long. The city typically has 96 days a year during which the temperature never rises above 0 °C.
Feb 5, 2024 · The summer season in Thunder Bay, stretched from June through August, enjoys warm temperatures. The heat levels peak in July, with the mercury soaring to an average temperature of 24.3°C (75.7°F). Rainfall remains consistent throughout these months, hitting a high in August with 90mm (3.54").
The temperature here averages 3.7 °C | 38.6 °F. The annual rainfall is 698 mm | 27.5 inch. The given location is in the northern hemisphere. -> The particular spot is situated in the upper half of the planet. Summer begins at the end of June and ends in September. The months of summer are: June, July, August, September.
In Thunder Bay, Ontario, the coolest month is January, with an average daily high temperature of -7.8 °C and an average low of -19.0 °C.
Thunder Bay weather by month. Check out Thunder Bay weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures. Temperature; Rainfall; Sunshine & daylight; UV levels & humidity; Temperature in Thunder Bay (°C)
Jun 14, 2024 · Chart and data: Temperature - Annual data (25 years) for Thunder Bay for Thunder Bay, Ontario, Canada.
