Photo: Eric Marshall · CC BY 3.0July in Smithville runs hotter than in 88% of Canadian towns
Deep winter brings January lows near −6.8°C. Precipitation peaks in April and eases off in February. Frost is rarer than in 86% of Canadian towns: about 117 nights a year drop below freezing. Comfortable outdoor weather, highs of 19–26°C, belongs to May, June, August and September.
These are not Smithville’s own readings: ECCC keeps no normals there, so the page uses Vineland, 14 km north-east.
A year in Smithville at a glance
Each month’s typical high and low, in °C.
What stands out about Smithville’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Smithville feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 117 days, 20°C on 124
Frosts fall from October to April; January has the most, about 27. Some 18 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
About 838 mm of rain and snow a year
About 112 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Snowfall: about 141 cm in a normal year
The snow season runs November to April; January brings the most, about 44 cm.
Snowfall by month
Centimetres
Snowfall: Welland-Pelham, 27 km away (Vineland records no complete year of it).
Heating a home in Smithville
93% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
A heating degree day is one degree of shortfall below 18°C for one day, summed over the year. That means homes here need less heating than 88% of Canadian towns.
Living with Smithville’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
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 →About 11 days a year bring a wind chill under −20, when bare skin chills fast.
Plan shade and water for about 61 days a year above 30 on the humidex.
A typical year is calm by definition; Smithville’s hazards page covers the exceptions.
Flood & hazards →ECCC’s normals location: Vineland
Vineland is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 14 km north-east |
| Station altitude | 95 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Welland-Pelham, 27 km |
| Coldest reading, 1991–2020 | −24.5°C |
| Hottest reading, 1991–2020 | 37.4°C |
| Average wind | 12.9 km/h on average, most often from the south-west |
| Next-nearest location | Welland-Pelham, 27 km |
How Smithville compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Ontario.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Smithville’s would only repeat its figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Smithville Vineland | 27.1°C | −6.8°C | 838 mm |
| Grimsby 11 km · Vineland | 27.1°C about the same | −6.8°C about the same | 838 mm |
| Fifty Point 16 km · Burlington Piers | 25.5°C 1.6°C cooler | −6.3°C 0.5°C milder | 838 mm |
Smithville 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 | 0.2°C | −6.8°C | −3.3°C | 71 mm | 44 cm |
| February | 0.8°C | −6.4°C | −2.9°C | 52 mm | 24 cm |
| March | 5.3°C | −2.6°C | 1.4°C | 62 mm | 28 cm |
| April | 11.6°C | 2.4°C | 7.0°C | 83 mm | 5 cm |
| May | 18.6°C | 8.0°C | 13.3°C | 70 mm | 0 cm |
| June | 24.1°C | 14.0°C | 19.1°C | 78 mm | 0 cm |
| July | 27.1°C | 17.2°C | 22.2°C | 74 mm | 0 cm |
| August | 26.1°C | 16.6°C | 21.4°C | 69 mm | 0 cm |
| September | 22.3°C | 12.9°C | 17.6°C | 69 mm | 0 cm |
| October | 15.5°C | 7.1°C | 11.3°C | 77 mm | under 1 cm |
| November | 8.9°C | 1.5°C | 5.2°C | 72 mm | 9 cm |
| December | 3.2°C | −3.0°C | 0.1°C | 62 mm | 32 cm |
| Year | 13.6°C | 5.1°C | 9.4°C | 838 mm | 141 cm |
March has run from −19.2°C to 27.0°C in thirty years
Year to year, February varies most (a standard deviation of 2.8°C around −2.9°C) and August least (1.2°C).
Where Smithville’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Vineland (the closest location with all twelve months of temperatures).
- Other locations: ECCC blanks a month that fails its completeness rule, so the precipitation or snowfall here comes from the next location with all twelve months.
- 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: a sunshine figure (ECCC published none for 1991–2020) and any lapse-rate correction for height, as the town has no elevation here.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Smithville’s climate
How warm does Smithville get in summer?
Of all twelve months, July has the warmest afternoons, about 27.1°C.
How cold does Smithville get in winter?
Winter bottoms out in January, with lows near −6.8°C.
How much rain and snow does Smithville get?
Rain and snow add up to about 838 mm of water a year; April brings the most (83 mm), February the least (52 mm).
Are these figures for Smithville itself?
Only indirectly: the readings are made at Vineland, outside Smithville.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Smithville →
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).