>>Thunder Bay average temperature
>>Thunder Bay Weather by month // weather averages
The climate is cold and temperate. The rainfall in Thunder Bay is significant, with precipitation even during the driest month. According to Köppen and Geiger, this climate is classified as Dfb. The temperature here averages 2.5 °C. The average annual rainfall is 717 mm.
Climate graph // Weather by Month Thunder Bay
The driest month is February, with 29 mm of rain. In August, the precipitation reaches its peak, with an average of 86 mm.
average temperature Thunder Bay
July is the warmest month of the year. The temperature in July averages 17.8 °C. At -15.1 °C on average, January is the coldest month of the year.
Thunder Bay Weather by month // weather averages
|Avg. Temperature (°C)||Avg. Temperature (°F)||Precipitation / Rainfall (mm)|
|Avg. Temperature (°C)||-15.1||-12.5||-6.2||2.4||9||14.2||17.8||16.7||11.4||5.9||-2.4||-10.9|
|Min. Temperature (°C)||-21.3||-19.3||-12.4||-3.5||2.3||7.6||11.1||10.1||5.5||0.6||-6.6||-16.1|
|Max. Temperature (°C)||-8.9||-5.7||0.1||8.4||15.7||20.9||24.6||23.3||17.4||11.2||1.9||-5.7|
|Avg. Temperature (°F)||4.8||9.5||20.8||36.3||48.2||57.6||64.0||62.1||52.5||42.6||27.7||12.4|
|Min. Temperature (°F)||-6.3||-2.7||9.7||25.7||36.1||45.7||52.0||50.2||41.9||33.1||20.1||3.0|
|Max. Temperature (°F)||16.0||21.7||32.2||47.1||60.3||69.6||76.3||73.9||63.3||52.2||35.4||21.7|
|Precipitation / Rainfall (mm)||43||29||43||46||70||80||77||86||83||62||56||42|
There is a difference of 57 mm of precipitation between the driest and wettest months. The variation in annual temperature is around 32.9 °C.