Photo: P199 · CC BY-SA 3.0Hardly any Canadian towns see more snow than Wiarton, with about 385 cm a year
Midwinter brings lows of about −9.9°C. Its yearly rain and snow top those of 80% of Canadian towns. Winter and summer sit 35°C apart. Frost comes on about 148 days a year, so leave time to clear the car.
Read at Wiarton, 13 km north-east: ECCC’s normals for 1991–2020.
A year in Wiarton at a glance
Each month’s typical high and low, in °C.
What stands out about Wiarton’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Wiarton feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 148 frosts and 102 warm days a year
Frost comes from October to May; in January almost every night freezes. Deep cold, under −20°C, comes on about 6 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
1,074 mm of precipitation in a typical year
January is the wettest month and March the driest. On about 147 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 385 cm in a normal year
The snow season runs October to April; January brings the most, about 111 cm. The snowiest of 854 towns of 2,500+ in Ontario.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Wiarton
89% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
The count adds up, day by day, how far the mean temperature falls short of 18°C. By this count, homes here need less heating than 66% of Canadian towns.
Living with Wiarton’s climate
What the normals mean for a garden, a day outside and the depth of winter.
From about 12 May to 10 October the garden is usually clear of frost, some 151 days.
Plan time outside for Jun, Jul, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →About 24 days a year bring a wind chill under −20, when bare skin chills fast.
About 36 days a year feel above 30 on the humidex.
A typical year is calm by definition; Wiarton’s hazards page covers the exceptions.
Flood & hazards →ECCC’s normals location: Wiarton
Wiarton is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 13 km north-east |
| Station altitude | 222 m |
| Completeness | at least 25 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −34.3°C |
| Hottest reading, 1991–2020 | 34.2°C |
| Average wind | 13.1 km/h on average, most often from the west |
| Next-nearest location | Collingwood, 80 km |
How Wiarton 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
Places around Wiarton whose figures come from another normals location. Distances here run 43–60 km: that is how far the nearest places with figures are from Wiarton.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Wiarton | 24.3°C | −9.9°C | 1,074 mm |
| Meaford 43 km · Collingwood | 25.3°C 1.0°C warmer | −8.7°C 1.2°C milder | 1,074 mm |
| Walkerton 56 km · Mount Forest | 25.1°C 0.8°C warmer | −10.9°C 1.0°C colder | 1,035 mm |
| Kincardine 57 km · Goderich | 24.4°C about the same | −7.8°C 2.1°C milder | 1,074 mm |
Wiarton weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −2.2°C | −9.9°C | −6.1°C | 111 mm | 111 cm |
| February | −1.7°C | −10.2°C | −6.0°C | 77 mm | 74 cm |
| March | 2.7°C | −6.2°C | −1.8°C | 66 mm | 38 cm |
| April | 10.0°C | 0.1°C | 5.0°C | 84 mm | 18 cm |
| May | 16.9°C | 5.5°C | 11.2°C | 82 mm | 1 cm |
| June | 21.8°C | 10.5°C | 16.2°C | 79 mm | 0 cm |
| July | 24.3°C | 13.6°C | 18.9°C | 70 mm | 0 cm |
| August | 23.6°C | 13.1°C | 18.3°C | 83 mm | 0 cm |
| September | 20.1°C | 9.5°C | 14.8°C | 99 mm | 0 cm |
| October | 13.2°C | 4.6°C | 8.9°C | 110 mm | 5 cm |
| November | 6.5°C | −0.5°C | 3.0°C | 110 mm | 48 cm |
| December | 1.0°C | −5.3°C | −2.2°C | 104 mm | 92 cm |
| Year | 11.3°C | 2.1°C | 6.7°C | 1,074 mm | 385 cm |
March: −30.5°C at its coldest, 27.2°C at its warmest
From one year to the next, January’s average typically shifts by 3.0°C around its normal of −6.1°C, the widest of any month, while August’s shifts by 1.1°C.
Where Wiarton’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Wiarton, 1991–2020, chosen as the nearest location with a full temperature record.
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- 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 Wiarton’s climate
How warm does Wiarton get in summer?
The warmest month is July, when afternoons average 24.3°C.
How cold does Wiarton get in winter?
Expect nights around −10.2°C in February; no month is colder.
How much rain and snow does Wiarton get?
January is the wettest month at 111 mm and March the driest at 66 mm, for 1,074 mm over the year.
How long does snow stay on the ground?
Snow covers the ground, 1 cm or more, on about 112 days a year.
Are these figures for Wiarton itself?
Almost: ECCC’s Wiarton location, which gives these figures, lies a short way outside Wiarton.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Wiarton →
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).