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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 78°F, while the coldest is January averaging around 5°F at night. Precipitation is fairly even year-round, totalling about 37 inches. Snowfall is heavy (62 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)Fredericton climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 25 | 28 | 37 | 50 | 63 | 73 | 78 | 77 | 69 | 55 | 43 | — |
| Avg temp (°F) | 15 | 17 | 27 | 40 | 51 | 61 | 66 | 66 | 57 | 46 | 35 | — |
| Avg low (°F) | 5 | 6 | 16 | 29 | 39 | 49 | 55 | 54 | 46 | 36 | 28 | — |
| Precipitation (in) | 2.9 | 2.2 | 3.0 | 3.1 | 3.8 | 3.7 | 3.6 | 3.1 | 3.7 | 4.2 | 3.7 | — |
| Snowfall (in) | 20.0 | 16.4 | 16.8 | 4.6 | — | — | — | — | 0.0 | 0.2 | 3.6 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 25 | 28 | 37 | 50 | 63 | 73 |
| Avg temp (°F) | 15 | 17 | 27 | 40 | 51 | 61 |
| Avg low (°F) | 5 | 6 | 16 | 29 | 39 | 49 |
| Precipitation (in) | 2.9 | 2.2 | 3.0 | 3.1 | 3.8 | 3.7 |
| Snowfall (in) | 20.0 | 16.4 | 16.8 | 4.6 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 78 | 77 | 69 | 55 | 43 | — |
| Avg temp (°F) | 66 | 66 | 57 | 46 | 35 | — |
| Avg low (°F) | 55 | 54 | 46 | 36 | 28 | — |
| Precipitation (in) | 3.6 | 3.1 | 3.7 | 4.2 | 3.7 | — |
| Snowfall (in) | — | — | 0.0 | 0.2 | 3.6 | — |
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 (mph) | 0.6 | 0.7 | 0.8 | 0.6 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.4 |
| 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 (mph) | 0.6 | 0.7 | 0.8 | 0.6 | 0.3 | 0.3 |
| 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 (mph) | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.4 |
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.