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Moncton, New Brunswick climate
Dfb Warm-summer humid continental
Moncton has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 25°C, while the coldest is January averaging around −14°C at night. Precipitation is fairly even year-round, totalling about 1216 mm. Snowfall is heavy (314 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)Moncton climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −4 | −3 | 2 | 9 | 16 | 21 | 25 | 24 | 20 | 13 | 6 | 0 |
| Avg temp (°C) | −9 | −8 | −3 | 4 | 10 | 15 | 19 | 18 | 14 | 8 | 2 | −4 |
| Avg low (°C) | −14 | −13 | −7 | −1 | 4 | 9 | 13 | 12 | 8 | 3 | −2 | −9 |
| Precipitation (mm) | 100 | 88 | 116 | 92 | 98 | 94 | 92 | 82 | 102 | 128 | 105 | 118 |
| Snowfall (cm) | 73 | 65 | 63 | 29 | 2 | — | — | — | — | 2 | 18 | 62 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −4 | −3 | 2 | 9 | 16 | 21 |
| Avg temp (°C) | −9 | −8 | −3 | 4 | 10 | 15 |
| Avg low (°C) | −14 | −13 | −7 | −1 | 4 | 9 |
| Precipitation (mm) | 100 | 88 | 116 | 92 | 98 | 94 |
| Snowfall (cm) | 73 | 65 | 63 | 29 | 2 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 24 | 20 | 13 | 6 | 0 |
| Avg temp (°C) | 19 | 18 | 14 | 8 | 2 | −4 |
| Avg low (°C) | 13 | 12 | 8 | 3 | −2 | −9 |
| Precipitation (mm) | 92 | 82 | 102 | 128 | 105 | 118 |
| Snowfall (cm) | — | — | — | 2 | 18 | 62 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 68 | 66 | 68 | 70 | 68 | 64 | 61 | 60 | 66 | 72 | 70 |
| Relative humidity (%) | 90 | 90 | 85 | 81 | 81 | 81 | 82 | 81 | 81 | 82 | 85 | 88 |
| Wind speed (mph) | 2.7 | 2.7 | 2.6 | 2.1 | 1.8 | 1.7 | 1.7 | 2.0 | 2.4 | 2.8 | 2.6 | 2.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 68 | 66 | 68 | 70 | 68 |
| Relative humidity (%) | 90 | 90 | 85 | 81 | 81 | 81 |
| Wind speed (mph) | 2.7 | 2.7 | 2.6 | 2.1 | 1.8 | 1.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 61 | 60 | 66 | 72 | 70 |
| Relative humidity (%) | 82 | 81 | 81 | 82 | 85 | 88 |
| Wind speed (mph) | 1.7 | 2.0 | 2.4 | 2.8 | 2.6 | 2.7 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 21 years of daily observations at Moncton A, a weather station, about 9 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.