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Dieppe, New Brunswick climate
Dfb Warm-summer humid continental
Dieppe has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 76°F, while the coldest is January averaging around 8°F at night. Precipitation is fairly even year-round, totalling about 48 inches. Snowfall is heavy (123 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)Dieppe climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 25 | 27 | 36 | 48 | 61 | 70 | 76 | 76 | 68 | 55 | 44 | 32 |
| Avg temp (°F) | 16 | 18 | 27 | 39 | 50 | 60 | 66 | 65 | 57 | 46 | 36 | 24 |
| Avg low (°F) | 8 | 9 | 19 | 30 | 39 | 49 | 56 | 54 | 47 | 37 | 28 | 17 |
| Precipitation (in) | 4.0 | 3.5 | 4.6 | 3.6 | 3.8 | 3.7 | 3.6 | 3.2 | 4.0 | 5.0 | 4.1 | 4.6 |
| Snowfall (in) | 28.7 | 25.6 | 24.6 | 11.6 | 0.9 | — | — | — | — | 0.7 | 7.1 | 24.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 25 | 27 | 36 | 48 | 61 | 70 |
| Avg temp (°F) | 16 | 18 | 27 | 39 | 50 | 60 |
| Avg low (°F) | 8 | 9 | 19 | 30 | 39 | 49 |
| Precipitation (in) | 4.0 | 3.5 | 4.6 | 3.6 | 3.8 | 3.7 |
| Snowfall (in) | 28.7 | 25.6 | 24.6 | 11.6 | 0.9 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 76 | 76 | 68 | 55 | 44 | 32 |
| Avg temp (°F) | 66 | 65 | 57 | 46 | 36 | 24 |
| Avg low (°F) | 56 | 54 | 47 | 37 | 28 | 17 |
| Precipitation (in) | 3.6 | 3.2 | 4.0 | 5.0 | 4.1 | 4.6 |
| Snowfall (in) | — | — | — | 0.7 | 7.1 | 24.3 |
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 4 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.