Photo: P199 · CC BY-SA 3.0LaSalle 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. By frosts alone, it ranks gentler than 86% of Canadian towns. Precipitation peaks in July and eases off in February. Frost comes on about 115 days a year, so leave time to clear the car.
These are not LaSalle’s own readings: ECCC keeps no normals there, so the page uses Windsor, 10 km north-east.
A year in LaSalle at a glance
Each month’s typical high and low, in °C.
What stands out about LaSalle’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in LaSalle 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. Some 24 days a year climb past 30°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 954 mm a year
About 110 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 140 cm in a normal year
From November to April snow is likely; January is the peak, at about 43 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in LaSalle
95% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
Heating degree days total each day’s gap between its mean temperature and 18°C. Homes here need less heating than 93% of Canadian towns.
Living with LaSalle’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Between the last frost, near 17 April, and the first, near 1 November, lie about 197 frost-free days.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: May, Jun, Aug and Sep.
Parks & trails →About 13 days a year bring a wind chill under −20, when bare skin chills fast.
Plan shade and water for about 74 days a year above 30 on the humidex.
Bad-weather days, from blizzards to floods, get their own page for LaSalle: the hazards page.
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 | 10 km north-east |
| 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, 16 km |
How LaSalle 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 LaSalle’s would only repeat its figures. The nearest places to LaSalle with figures are 14–29 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| LaSalle Windsor | 28.3°C | −7.1°C | 954 mm |
| Amherstburg 14 km · Harrow | 27.6°C 0.7°C cooler | −7.0°C about the same | 827 mm |
| Tecumseh 18 km · Windsor Riverside | 29.2°C 0.9°C warmer | −6.3°C 0.8°C milder | 935 mm |
LaSalle weather by month
Month by month, 1991–2020: the usual high, low and mean, the rain and snow, and the snowfall.
| 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
March has the widest record range, −22.0°C in 2015 to 28.4°C in 2012; the tick on each bar is the month’s normal.
Where LaSalle’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Windsor, its nearest location with complete temperatures.
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- Not on this page: sunshine, which none of ECCC’s 450 locations publishes for 1991–2020, and the town’s own height above sea level, so no figure is adjusted for altitude.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about LaSalle’s climate
How warm does LaSalle get in summer?
A normal July afternoon tops out at about 28.3°C, the year’s high point.
How cold does LaSalle get in winter?
At its coldest, in January, the normal low is −7.1°C.
How much rain and snow does LaSalle get?
Rain and snow add up to about 954 mm of water a year; July brings the most (99 mm), February the least (60 mm).
How long does snow stay on the ground?
There is 1 cm of snow or more on the ground on roughly 53 days a year.
Are these figures for LaSalle itself?
Only indirectly: the readings are made at Windsor, outside LaSalle.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for LaSalle →
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).