July in Richmond runs hotter than in 86% of Canadian towns
The depth of winter brings overnight lows near −14.3°C. Winter nights are cold: in January they are colder than in 61% of Canadian towns. The gap between a January night and a July afternoon is 41°C. About 118 days a year bring 1 mm of precipitation or more.
Read at Ottawa (Airport), 19 km north-east: ECCC’s normals for 1991–2020.
A year in Richmond at a glance
Each month’s typical high and low, in °C.
What stands out about Richmond’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Richmond feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 154 frosts and 120 warm days a year
Frost comes from October to April; in January almost every night freezes. Deep cold, under −20°C, comes on about 16 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 930 mm a year
June brings the most rain and snow; February, the least.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
232 cm of snow in a typical year
Snow falls from October to April, most of all in January (about 59 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Richmond
93% 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.
Living with Richmond’s climate
What the normals mean for a garden, a day outside and the depth of winter.
The frost-free stretch runs from about 29 April to about 7 October, some 160 days in a normal year.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jun, Jul, Aug and Sep.
Parks & trails →Roughly 47 days a year feel colder than −20 in the wind.
Roughly 49 days a year feel hotter than 30 once humidity is counted.
What averages leave out, the floods and ice storms, is on Richmond’s hazards page.
Flood & hazards →ECCC’s normals location: Ottawa (Airport)
Ottawa (Airport) is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 19 km north-east |
| Station altitude | 114 m |
| Completeness | at least 25 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −33.1°C |
| Hottest reading, 1991–2020 | 36.9°C |
| Average wind | 13.5 km/h on average, most often from the west |
| Next-nearest location | Ottawa (City), 22 km |
How Richmond 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 Richmond’s would only repeat its figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Richmond Ottawa (Airport) | 27.0°C | −14.3°C | 930 mm |
| Munster - Ashton 7.1 km · Ottawa (Airport) | 27.0°C about the same | −14.3°C about the same | 930 mm |
| Stittsville East 8.7 km · Ottawa (City) | 26.7°C about the same | −14.0°C about the same | 938 mm |
Richmond 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 | −5.5°C | −14.3°C | −10.0°C | 70 mm | 59 cm |
| February | −3.6°C | −13.2°C | −8.5°C | 50 mm | 49 cm |
| March | 2.4°C | −7.1°C | −2.4°C | 66 mm | 39 cm |
| April | 11.3°C | 0.5°C | 5.9°C | 81 mm | 12 cm |
| May | 19.6°C | 7.5°C | 13.6°C | 75 mm | under 1 cm |
| June | 24.4°C | 12.9°C | 18.7°C | 97 mm | 0 cm |
| July | 27.0°C | 15.4°C | 21.2°C | 89 mm | 0 cm |
| August | 25.8°C | 14.3°C | 20.1°C | 79 mm | 0 cm |
| September | 21.0°C | 9.6°C | 15.3°C | 90 mm | 0 cm |
| October | 13.0°C | 3.4°C | 8.2°C | 87 mm | 3 cm |
| November | 5.8°C | −2.4°C | 1.7°C | 74 mm | 21 cm |
| December | −1.9°C | −9.6°C | −5.8°C | 72 mm | 50 cm |
| Year | 11.6°C | 1.4°C | 6.5°C | 930 mm | 232 cm |
In March, anything from −29.0°C to 27.4°C
January is the least predictable month: about two years in three its average lands within 3.2°C of the normal, −10.0°C. August is the steadiest, within 1.1°C.
Where Richmond’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Ottawa (Airport), the closest ECCC location with twelve months of temperature normals.
- 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: 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 Richmond’s climate
How warm does Richmond get in summer?
Highs reach 27.0°C on an average July day; no month is warmer.
How cold does Richmond get in winter?
At its coldest, in January, the normal low is −14.3°C.
How much rain and snow does Richmond get?
Precipitation totals 930 mm a year, with June the wettest month (97 mm) and February the driest (50 mm).
How long does snow stay on the ground?
Count on about 118 days of snow cover a year, 1 cm or deeper.
Are these figures for Richmond itself?
They are the normals for Ottawa (Airport), measured just outside Richmond itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Richmond →
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).