Photo: Larry from Charlottetown, PEI, Canada · CC BY 2.0Charlottetown is wetter than 83% of Canadian towns: 1,136 mm of rain and snow a year
Midsummer highs settle at about 23.6°C. Winter and summer sit 35°C apart. Summers stay cool: July afternoons here are cooler than in 72% of Canadian towns. Windshields need scraping on about 159 mornings a year, the days the air reaches 0°C or below.
1991–2020 normals from ECCC’s Charlottetown (Airport) station, 3.3 km north.
A year in Charlottetown at a glance
Each month’s typical high and low, in °C.
What stands out about Charlottetown’s climate
Compared with Canadian towns, with its place among towns of 2,500+ on Prince Edward Island beside it.
What a year in Charlottetown feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on 159 days, 20°C on 83
Frost comes from October to May; in January almost every night freezes. Some 6 nights a year drop under −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 1,136 mm a year
October is the wettest month and April the driest. 6th wettest of 12 towns of 2,500+ on Prince Edward Island. About 135 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 285 cm in a normal year
From October to May snow is likely; January is the peak, at about 73 cm. 6th snowiest of 12 towns of 2,500+ on Prince Edward Island.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Charlottetown
88% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
Degree days add up how far each day’s mean temperature falls below 18°C over a year.
Living with Charlottetown’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Frost usually lets go around 17 May and returns near 18 October, about 153 days apart.
The outdoor season by the averages is Jun, Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →Count on some 29 days a year when the wind makes it feel below −20.
About 25 days a year turn sultry, with the humidex past 30.
For the weather that does damage, from ice storms to floods, see Charlottetown’s hazards page.
Flood & hazards →ECCC’s normals location: Charlottetown (Airport)
Charlottetown (Airport) is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 3.3 km north |
| Station altitude | 49 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −29.8°C |
| Hottest reading, 1991–2020 | 33.0°C |
| Average wind | 16.4 km/h on average, most often from the west |
| Next-nearest location | Elmwood, 15 km |
How Charlottetown compares
Placed among 2,611 Canadian towns and neighbourhoods of 2,500+, each on its nearest normals location; each dot is another location used on Prince Edward Island.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Charlottetown’s own would show the same figures). The nearest places to Charlottetown with figures are 13–29 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Charlottetown Charlottetown (Airport) | 23.6°C | −11.5°C | 1,136 mm |
| Kingston 13 km · Elmwood | 23.7°C about the same | −11.0°C 0.5°C milder | 1,290 mm |
| New Glasgow 19 km · New Glasgow | 23.9°C about the same | −11.1°C about the same | 1,252 mm |
| Belfast 29 km · Alliston | 24.3°C 0.7°C warmer | −9.7°C 1.8°C milder | 1,263 mm |
Charlottetown weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −3.0°C | −11.5°C | −7.3°C | 101 mm | 73 cm |
| February | −2.9°C | −11.6°C | −7.3°C | 85 mm | 62 cm |
| March | 1.4°C | −6.5°C | −2.6°C | 84 mm | 42 cm |
| April | 7.3°C | −1.4°C | 3.0°C | 75 mm | 21 cm |
| May | 14.2°C | 3.9°C | 9.1°C | 78 mm | 2 cm |
| June | 19.5°C | 9.6°C | 14.6°C | 91 mm | 0 cm |
| July | 23.6°C | 14.4°C | 19.0°C | 82 mm | 0 cm |
| August | 23.3°C | 14.1°C | 18.8°C | 96 mm | 0 cm |
| September | 19.1°C | 10.0°C | 14.6°C | 95 mm | 0 cm |
| October | 12.6°C | 4.6°C | 8.6°C | 122 mm | 2 cm |
| November | 6.7°C | −0.2°C | 3.2°C | 110 mm | 21 cm |
| December | 0.9°C | −6.3°C | −2.7°C | 115 mm | 63 cm |
| Year | 10.2°C | 1.6°C | 5.9°C | 1,136 mm | 285 cm |
March: −23.3°C at its coldest, 24.5°C at its warmest
Year to year, January varies most (a standard deviation of 2.4°C around −7.3°C) and August least (1.0°C).
Where Charlottetown’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Charlottetown (Airport) (the closest location with all twelve months of temperatures).
- Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- Not on this page: sunshine, absent from every 1991–2020 location, and an altitude correction, for want of the town’s own elevation.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Charlottetown’s climate
How warm does Charlottetown get in summer?
On a normal day in July the thermometer climbs to 23.6°C, the warmest of the year.
How cold does Charlottetown get in winter?
At its coldest, in February, the normal low is −11.6°C.
How much rain and snow does Charlottetown get?
Some 1,136 mm falls in a year. Most of it comes in October (122 mm), the least in April (75 mm).
How long does snow stay on the ground?
On about 113 days a year the ground keeps at least 1 cm of snow.
Are these figures for Charlottetown itself?
Yes: they are ECCC’s 1991–2020 normals for Charlottetown (Airport), a location inside Charlottetown.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Charlottetown →
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).