Fontainebleau has some of the warmest summer afternoons among Canadian towns
The coldest hours of a January night bottom out at −7.1°C on average. Winter and summer sit 35°C apart. Only about 115 nights a year bring a frost, fewer than in 86% of Canadian towns. Comfortable outdoor weather, highs of 21–27°C, belongs to May, June, August and September.
Environment and Climate Change Canada’s 1991–2020 normals at its Windsor station, 2.3 km south.
A year in Fontainebleau at a glance
Each month’s typical high and low, in °C.
What stands out about Fontainebleau’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Fontainebleau feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 115 days, 20°C on 141
The frost season runs November to April, and January freezes nearly every night. About 24 days a year top 30°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 954 mm of rain and snow a year
July brings the most rain and snow; February, the least. On about 110 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
140 cm of snow in a typical year
Expect snow from November to April, with about 43 cm in January, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Fontainebleau
95% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
Warm days count for nothing; each colder day adds how far its mean sits below 18°C. By this count, homes here need less heating than 93% of Canadian towns.
Living with Fontainebleau’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Frost usually lets go around 17 April and returns near 1 November, about 197 days apart.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to May, Jun, Aug and Sep.
Parks & trails →Bitter wind chill, under −20, comes on about 13 days a year.
Muggy heat with a humidex over 30 arrives on about 74 days a year.
The normals describe a typical year, not its worst days; the hazards page covers Fontainebleau’s.
Flood & hazards →ECCC’s normals location: Windsor
ECCC builds the Windsor normals from 3 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 2.3 km south |
| Station altitude | 190 m |
| Completeness | at least 25 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −29.1°C |
| Hottest reading, 1991–2020 | 38.3°C |
| Average wind | 15.6 km/h on average, most often from the south-west |
| Next-nearest location | Windsor Riverside, 4.2 km |
How Fontainebleau compares
Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in Ontario.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Fontainebleau’s would only repeat its figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Fontainebleau Windsor | 28.3°C | −7.1°C | 954 mm |
| East Windsor 2.4 km · Windsor Riverside | 29.2°C 0.9°C warmer | −6.3°C 0.8°C milder | 935 mm |
| South Walkerville 3.2 km · Windsor | 28.3°C about the same | −7.1°C about the same | 954 mm |
Fontainebleau weather by month
Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | 0.0°C | −7.1°C | −3.6°C | 71 mm | 43 cm |
| February | 1.3°C | −6.4°C | −2.6°C | 60 mm | 33 cm |
| March | 6.8°C | −2.1°C | 2.4°C | 71 mm | 23 cm |
| April | 14.0°C | 3.5°C | 8.8°C | 92 mm | 6 cm |
| May | 20.7°C | 9.8°C | 15.3°C | 97 mm | 0 cm |
| June | 26.0°C | 15.5°C | 20.8°C | 83 mm | 0 cm |
| July | 28.3°C | 18.0°C | 23.2°C | 99 mm | 0 cm |
| August | 27.0°C | 17.1°C | 22.1°C | 76 mm | 0 cm |
| September | 23.1°C | 13.0°C | 18.1°C | 88 mm | 0 cm |
| October | 16.1°C | 6.9°C | 11.6°C | 74 mm | under 1 cm |
| November | 8.9°C | 1.4°C | 5.2°C | 73 mm | 5 cm |
| December | 2.7°C | −3.5°C | −0.4°C | 69 mm | 30 cm |
| Year | 14.6°C | 5.5°C | 10.1°C | 954 mm | 140 cm |
A January here can run warm or cold, its average moving by about 2.8°C; the steadiest month is June
Each bar spans a month’s coldest and warmest readings over thirty years; March’s run from −22.0°C in 2015 to 28.4°C in 2012.
Where Fontainebleau’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Windsor, the nearest location with a full year of temperatures.
- Comparisons: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- Not on this page: hours of sunshine, missing from the 1991–2020 normals, and a height correction: the town has no elevation on file.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Fontainebleau’s climate
How warm does Fontainebleau get in summer?
Midsummer means July, with afternoons near 28.3°C on a typical day.
How cold does Fontainebleau get in winter?
The year’s coldest nights belong to January, at about −7.1°C.
How much rain and snow does Fontainebleau get?
Count on roughly 954 mm a year, heaviest in July (99 mm) and lightest in February (60 mm).
How long does snow stay on the ground?
About 53 days a year have 1 cm of snow or more on the ground.
Are these figures for Fontainebleau itself?
Almost: ECCC’s Windsor location, which gives these figures, lies a short way outside Fontainebleau.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Fontainebleau →
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).