Frost comes to Riverdale West less often than to 92% of Canadian towns
Peak summer warmth arrives in July, with afternoons near 25.5°C. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 32°C apart. The heating season runs November to April: each of those months averages under 10°C.
The nearest ECCC normals location to Riverdale West is Burlington Piers, 8.3 km north-west, and every figure on this page is its.
A year in Riverdale West at a glance
Each month’s typical high and low, in °C.
What stands out about Riverdale West’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Riverdale West feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 98 frosts a year
Frost comes from November to April, most of all in January (about 25 nights).
Frost days by month
Average days at 0°C or below
About 902 mm of rain and snow a year
The most falls in July, the least in February. On about 114 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
ECCC’s Burlington Piers normals leave precipitation out; the figures here come from Hamilton, 16 km away.
About 141 cm of snow a year
From November to April snow is likely; January is the peak, at about 44 cm.
Snowfall by month
Centimetres
ECCC’s Burlington Piers normals leave snowfall out; the figures here come from Welland-Pelham, 49 km away.
Living with Riverdale West’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Jul, Aug and Sep.
Parks & trails →Expect around 10 days a year when the wind chill sinks below −20.
Summer brings about 46 days when the humidex passes 30.
Storms, floods and heat waves sit outside these normals; Riverdale West’s hazards page covers them.
Flood & hazards →ECCC’s normals location: Burlington Piers
Burlington Piers is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 8.3 km north-west |
| Station altitude | 77 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Precipitation from | Hamilton, 16 km |
| Snowfall from | Welland-Pelham, 49 km |
| Coldest reading, 1991–2020 | −25.3°C |
| Hottest reading, 1991–2020 | 36.0°C |
| Average wind | 13.3 km/h on average, most often from the west |
| Next-nearest location | Hamilton, 16 km |
How Riverdale West 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
Nearby places read from a different ECCC location (places on Riverdale West’s own would show the same figures). Riverdale West has no close neighbour with figures; the nearest is 16 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Riverdale West Burlington Piers | 25.5°C | −6.3°C | 902 mm |
| Grimsby 16 km · Vineland | 27.1°C 1.6°C warmer | −6.8°C 0.5°C colder | 838 mm |
Riverdale West 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 | 0.1°C | −6.3°C | −3.1°C | 73 mm | 44 cm |
| February | 0.7°C | −5.9°C | −2.6°C | 53 mm | 24 cm |
| March | 4.7°C | −1.9°C | 1.4°C | 69 mm | 28 cm |
| April | 10.3°C | 3.3°C | 6.9°C | 81 mm | 5 cm |
| May | 16.7°C | 9.0°C | 12.9°C | 81 mm | 0 cm |
| June | 22.4°C | 15.1°C | 18.8°C | 78 mm | 0 cm |
| July | 25.5°C | 18.3°C | 21.9°C | 98 mm | 0 cm |
| August | 24.9°C | 18.3°C | 21.6°C | 67 mm | 0 cm |
| September | 21.4°C | 14.6°C | 18.1°C | 74 mm | 0 cm |
| October | 14.8°C | 8.3°C | 11.6°C | 84 mm | under 1 cm |
| November | 8.4°C | 2.7°C | 5.6°C | 78 mm | 9 cm |
| December | 2.9°C | −2.5°C | 0.2°C | 67 mm | 32 cm |
| Year | 12.7°C | 6.1°C | 9.4°C | 902 mm | 141 cm |
March has run from −21.2°C to 24.4°C in thirty years
Year to year, February varies most (a standard deviation of 2.7°C around −2.6°C) and August least (1.1°C).
Where Riverdale West’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the closest ECCC location with twelve months of temperature normals, Burlington Piers, 1991–2020.
- Other locations: precipitation and snowfall come from the nearest location that publishes all twelve months of them, as named above.
- 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, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Riverdale West’s climate
How warm does Riverdale West get in summer?
Afternoons average 25.5°C in July, the warmest time of year.
How cold does Riverdale West get in winter?
Winter bottoms out in January, with lows near −6.3°C.
How much rain and snow does Riverdale West get?
The year adds up to 902 mm. July is the peak month (98 mm) and February the low one (53 mm).
Are these figures for Riverdale West itself?
They describe Burlington Piers, the nearest normals location, rather than Riverdale West itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Riverdale West →
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).