Summer afternoons in West Centretown are warmer than in 78% of Canadian towns
On a normal January night the air cools to about −14.0°C. Precipitation is plentiful here, more than falls on 60% of Canadian towns. Winter and summer sit 41°C apart. Homes need heating from October to April, the months averaging under 10°C.
Read at Ottawa (City), 3.3 km south: ECCC’s normals for 1991–2020.
A year in West Centretown at a glance
Each month’s typical high and low, in °C.
What stands out about West Centretown’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in West Centretown feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 147 frosts and 121 warm days a year
The frost season runs October to April, and January freezes nearly every night. Some 15 nights a year drop under −20°C.
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
June brings the most rain and snow; February, the least. About 120 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 185 cm in a normal 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 West Centretown
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A day averaging 10 degrees under 18°C adds 10 to the total; warm days add nothing.
Living with West Centretown’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
On average the last spring frost comes around 30 April and the first autumn frost around 6 October: about 158 frost-free days between.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: May, Jun, Jul, Aug and Sep.
Parks & trails →Expect around 39 days a year when the wind chill sinks below −20.
The humidex tops 30 on about 50 days a year: muggy days to plan around.
What averages leave out, the floods and ice storms, is on West Centretown’s hazards page.
Flood & hazards →ECCC’s normals location: Ottawa (City)
Behind the 1991–2020 normals for Ottawa (City) are 2 stations, which ECCC combines into one record.
| Distance from the town | 3.3 km south |
| 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), 10 km |
How West Centretown 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
Places around West Centretown whose figures come from another normals location. The nearest places to West Centretown with figures are 17–24 km away.
West Centretown weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| 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 |
The most changeable month: January, give or take 3.1°C; the steadiest, June
Over 1991–2020, March saw both −28.5°C (2003) and 26.5°C (2012), the widest span of any month.
Where West Centretown’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Ottawa (City), the closest ECCC location with twelve months of temperature normals.
- Comparisons: every Canadian town and neighbourhood of 2,500 or more, each read from its own nearest location; city totals and reserves are left out.
- 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 West Centretown’s climate
How warm does West Centretown get in summer?
On a normal day in July the thermometer climbs to 26.7°C, the warmest of the year.
How cold does West Centretown get in winter?
Winter bottoms out in January, with lows near −14.0°C.
How much rain and snow does West Centretown get?
Precipitation totals 938 mm a year, with June the wettest month (95 mm) and February the driest (52 mm).
How long does snow stay on the ground?
Count on about 115 days of snow cover a year, 1 cm or deeper.
Are these figures for West Centretown itself?
Nearly: Ottawa (City), the location behind them, sits just beyond West Centretown’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for West Centretown →
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).