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Fredericton, New Brunswick climate
Dfb Warm-summer humid continental
Fredericton has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 26°C, while the coldest is January averaging around −15°C at night. Precipitation is fairly even year-round, totalling about 941 mm. Snowfall is heavy (157 cm 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)Fredericton climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −4 | −2 | 3 | 10 | 17 | 23 | 26 | 25 | 20 | 13 | 6 | — |
| Avg temp (°C) | −9 | −8 | −3 | 4 | 11 | 16 | 19 | 19 | 14 | 8 | 2 | — |
| Avg low (°C) | −15 | −15 | −9 | −1 | 4 | 9 | 13 | 12 | 8 | 2 | −2 | — |
| Precipitation (mm) | 74 | 56 | 75 | 78 | 97 | 95 | 92 | 79 | 94 | 106 | 94 | — |
| Snowfall (cm) | 51 | 42 | 43 | 12 | — | — | — | — | 0 | 1 | 9 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −4 | −2 | 3 | 10 | 17 | 23 |
| Avg temp (°C) | −9 | −8 | −3 | 4 | 11 | 16 |
| Avg low (°C) | −15 | −15 | −9 | −1 | 4 | 9 |
| Precipitation (mm) | 74 | 56 | 75 | 78 | 97 | 95 |
| Snowfall (cm) | 51 | 42 | 43 | 12 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 26 | 25 | 20 | 13 | 6 | — |
| Avg temp (°C) | 19 | 19 | 14 | 8 | 2 | — |
| Avg low (°C) | 13 | 12 | 8 | 2 | −2 | — |
| Precipitation (mm) | 92 | 79 | 94 | 106 | 94 | — |
| Snowfall (cm) | — | — | 0 | 1 | 9 | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 65 | 64 | 67 | 70 | 68 | 64 | 59 | 59 | 65 | 70 | 67 |
| Relative humidity (%) | 93 | 95 | 88 | 81 | 81 | 82 | 84 | 84 | 84 | 86 | 88 | 91 |
| Wind speed (m/s) | 0.3 | 0.3 | 0.4 | 0.3 | 0.2 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 65 | 64 | 67 | 70 | 68 |
| Relative humidity (%) | 93 | 95 | 88 | 81 | 81 | 82 |
| Wind speed (m/s) | 0.3 | 0.3 | 0.4 | 0.3 | 0.2 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 59 | 59 | 65 | 70 | 67 |
| Relative humidity (%) | 84 | 84 | 84 | 86 | 88 | 91 |
| Wind speed (m/s) | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 23 years of daily observations at Mactaquac Prov Park, a weather station, about 18 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.