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Charlottetown, Prince Edward Island climate
Dfb Warm-summer humid continental
Charlottetown has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 23°C, while the coldest is January averaging around −12°C at night. Precipitation is fairly even year-round, totalling about 1128 mm. Snowfall is heavy (286 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)Charlottetown climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −3 | −3 | 1 | 7 | 14 | 20 | 23 | 23 | 19 | 12 | 7 | 1 |
| Avg temp (°C) | −7 | −7 | −3 | 3 | 9 | 15 | 19 | 18 | 14 | 9 | 3 | −3 |
| Avg low (°C) | −12 | −12 | −7 | −1 | 4 | 10 | 14 | 14 | 10 | 5 | 0 | −6 |
| Precipitation (mm) | 101 | 88 | 85 | 75 | 78 | 85 | 81 | 95 | 90 | 125 | 107 | 118 |
| Snowfall (cm) | 72 | 63 | 41 | 22 | 2 | — | — | — | — | 1 | 18 | 65 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −3 | −3 | 1 | 7 | 14 | 20 |
| Avg temp (°C) | −7 | −7 | −3 | 3 | 9 | 15 |
| Avg low (°C) | −12 | −12 | −7 | −1 | 4 | 10 |
| Precipitation (mm) | 101 | 88 | 85 | 75 | 78 | 85 |
| Snowfall (cm) | 72 | 63 | 41 | 22 | 2 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 23 | 19 | 12 | 7 | 1 |
| Avg temp (°C) | 19 | 18 | 14 | 9 | 3 | −3 |
| Avg low (°C) | 14 | 14 | 10 | 5 | 0 | −6 |
| Precipitation (mm) | 81 | 95 | 90 | 125 | 107 | 118 |
| Snowfall (cm) | — | — | — | 1 | 18 | 65 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 84 | 78 | 75 | 75 | 73 | 69 | 64 | 61 | 62 | 73 | 81 | 86 |
| Relative humidity (%) | 89 | 89 | 86 | 85 | 85 | 84 | 83 | 80 | 80 | 81 | 83 | 86 |
| Wind speed (km/h) | 22.5 | 20.2 | 19.8 | 17.7 | 15.5 | 14.9 | 14.6 | 15.5 | 17.8 | 20.4 | 21.5 | 23.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 84 | 78 | 75 | 75 | 73 | 69 |
| Relative humidity (%) | 89 | 89 | 86 | 85 | 85 | 84 |
| Wind speed (km/h) | 22.5 | 20.2 | 19.8 | 17.7 | 15.5 | 14.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 61 | 62 | 73 | 81 | 86 |
| Relative humidity (%) | 83 | 80 | 80 | 81 | 83 | 86 |
| Wind speed (km/h) | 14.6 | 15.5 | 17.8 | 20.4 | 21.5 | 23.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 22 years of daily observations at Charlottetown 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.