Riverview has warmer summer afternoons than 78% of Canadian towns
Midwinter brings lows of about −14.0°C. Rain and snow together come to more here than on 60% of Canadian towns. Expect the most rain and snow in June and the least in February. Ice scrapers and block heaters earn their keep on roughly 147 days a year at 0°C or below.
Environment and Climate Change Canada’s 1991–2020 normals at its Ottawa (City) station, 6.4 km south-west.
A year in Riverview at a glance
Each month’s typical high and low, in °C.
What stands out about Riverview’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Riverview feels like
Each season’s and each month’s usual high and low, 1991–2020.
147 frost days and 121 days above 20°C a year
From October to April frost is routine, and in January it comes on almost every night. Deep cold, under −20°C, comes on about 15 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
938 mm of precipitation in a typical year
About 120 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
185 cm of snow in a typical year
Expect snow from October to April, with about 45 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 Riverview
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Degree days add up how far each day’s mean temperature falls below 18°C over a year.
Living with Riverview’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Gardens get from about 30 April to 6 October without frost, around 158 days in all.
The outdoor season by the averages is May, Jun, Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →Wind chill falls below −20 on about 39 days a year: cover skin and dress in layers.
About 50 days a year feel above 30 on the humidex.
For blizzards, floods and wildfire, turn to Riverview’s hazards page.
Flood & hazards →ECCC’s normals location: Ottawa (City)
ECCC builds the Ottawa (City) normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 6.4 km south-west |
| Station altitude | 79 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | Yes |
| Coldest reading, 1991–2020 | −32.2°C |
| Hottest reading, 1991–2020 | 37.3°C |
| Average wind | 11.5 km/h on average, most often from the west |
| Next-nearest location | Ottawa (Airport), 9.9 km |
How Riverview 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
Nearby places read from a different ECCC location (places on Riverview’s own would show the same figures). No closer places have figures: these lie 19–29 km from Riverview.
Riverview 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 | −5.2°C | −14.0°C | −9.6°C | 65 mm | 45 cm |
| February | −3.3°C | −12.9°C | −8.1°C | 52 mm | 41 cm |
| March | 2.5°C | −6.9°C | −2.2°C | 62 mm | 31 cm |
| April | 11.2°C | 1.1°C | 6.2°C | 81 mm | 8 cm |
| May | 19.4°C | 8.0°C | 13.8°C | 80 mm | 0 cm |
| June | 24.2°C | 13.3°C | 18.8°C | 95 mm | 0 cm |
| July | 26.7°C | 15.8°C | 21.3°C | 92 mm | 0 cm |
| August | 25.6°C | 14.6°C | 20.1°C | 87 mm | 0 cm |
| September | 21.1°C | 10.1°C | 15.6°C | 87 mm | 0 cm |
| October | 13.3°C | 4.1°C | 8.8°C | 90 mm | 2 cm |
| November | 5.8°C | −1.8°C | 2.0°C | 72 mm | 16 cm |
| December | −1.5°C | −8.7°C | −5.1°C | 74 mm | 43 cm |
| Year | 11.7°C | 1.9°C | 6.8°C | 938 mm | 185 cm |
March has run from −28.5°C to 26.5°C in thirty years
Year to year, January varies most (a standard deviation of 3.1°C around −9.6°C) and June least (1.1°C).
Where Riverview’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Ottawa (City) from ECCC’s climate data site, the nearest location with every month of temperature.
- Comparisons: the 2,500-plus towns and neighbourhoods of Canada, each read from its closest normals location; whole cities and reserves aren’t counted.
- 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 Riverview’s climate
How warm does Riverview get in summer?
In July, the warmest month, the typical high is 26.7°C.
How cold does Riverview get in winter?
A typical January night falls to −14.0°C, the year’s low point.
How much rain and snow does Riverview get?
The yearly total is about 938 mm. June gets 95 mm, the most of any month; February gets 52 mm, the least.
How long does snow stay on the ground?
About 115 days a year count as snow-covered, with 1 cm or more.
Are these figures for Riverview itself?
Nearly: Ottawa (City), the location behind them, sits just beyond Riverview’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Riverview →
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).