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North Bay, Ontario climate
Dfb Warm-summer humid continental
North Bay has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 75°F, while the coldest is January averaging around 1°F at night. Precipitation is fairly even year-round, totalling about 41 inches. Snowfall is heavy (122 inches of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)North Bay climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 18 | 23 | 34 | 48 | 63 | 72 | 75 | 74 | 65 | 51 | 38 | 25 |
| Avg temp (°F) | 10 | 13 | 25 | 39 | 53 | 62 | 66 | 64 | 56 | 44 | 31 | 18 |
| Avg low (°F) | 1 | 4 | 15 | 30 | 43 | 53 | 57 | 55 | 47 | 36 | 25 | 11 |
| Precipitation (in) | 3.0 | 2.5 | 2.4 | 2.9 | 3.5 | 3.6 | 3.9 | 3.4 | 4.4 | 4.2 | 4.0 | 3.1 |
| Snowfall (in) | 27.6 | 25.5 | 14.9 | 6.9 | 1.4 | 0.1 | — | — | 0.1 | 3.4 | 15.1 | 27.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 18 | 23 | 34 | 48 | 63 | 72 |
| Avg temp (°F) | 10 | 13 | 25 | 39 | 53 | 62 |
| Avg low (°F) | 1 | 4 | 15 | 30 | 43 | 53 |
| Precipitation (in) | 3.0 | 2.5 | 2.4 | 2.9 | 3.5 | 3.6 |
| Snowfall (in) | 27.6 | 25.5 | 14.9 | 6.9 | 1.4 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 74 | 65 | 51 | 38 | 25 |
| Avg temp (°F) | 66 | 64 | 56 | 44 | 31 | 18 |
| Avg low (°F) | 57 | 55 | 47 | 36 | 25 | 11 |
| Precipitation (in) | 3.9 | 3.4 | 4.4 | 4.2 | 4.0 | 3.1 |
| Snowfall (in) | — | — | 0.1 | 3.4 | 15.1 | 27.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 66 | 62 | 65 | 66 | 64 | 60 | 61 | 63 | 73 | 76 | 73 |
| Relative humidity (%) | 97 | 97 | 89 | 79 | 77 | 78 | 79 | 78 | 79 | 81 | 86 | 93 |
| Wind speed (mph) | 2.8 | 3.2 | 2.9 | 1.9 | 1.1 | 1.0 | 1.1 | 1.2 | 1.3 | 1.5 | 1.7 | 2.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 66 | 62 | 65 | 66 | 64 |
| Relative humidity (%) | 97 | 97 | 89 | 79 | 77 | 78 |
| Wind speed (mph) | 2.8 | 3.2 | 2.9 | 1.9 | 1.1 | 1.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 61 | 63 | 73 | 76 | 73 |
| Relative humidity (%) | 79 | 78 | 79 | 81 | 86 | 93 |
| Wind speed (mph) | 1.1 | 1.2 | 1.3 | 1.5 | 1.7 | 2.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 22 years of daily observations at North Bay A, a weather station, about 6 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.