Summer afternoons in Stittsville North are warmer than in 78% of Canadian towns
The depth of winter brings overnight lows near −14.0°C. Seasons differ by 41°C, from the coldest nights to the warmest afternoons. Counting rain and snow together, it is wetter than 60% of Canadian towns. Long walks are most pleasant from May to September, when afternoons reach 19–27°C.
Figures: ECCC’s 1991–2020 normals for Ottawa (City) (20 km north-east).
A year in Stittsville North at a glance
Each month’s typical high and low, in °C.
What stands out about Stittsville North’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Stittsville North feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
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
About 938 mm of rain and snow a year
June is the wettest month and February the driest. 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
The snow season runs October to April; January brings the most, about 45 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Stittsville North
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A heating degree day is one degree of shortfall below 18°C for one day, summed over the year.
Living with Stittsville North’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Between the last frost, near 30 April, and the first, near 6 October, lie about 158 frost-free days.
Highs of 17–27°C with nights of 8°C or more come in May, Jun, Jul, Aug and Sep.
Parks & trails →Plan for about 39 days a year with a wind chill below −20.
Muggy heat with a humidex over 30 arrives on about 50 days a year.
For the weather that does damage, from ice storms to floods, see Stittsville North’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 | 20 km north-east |
| 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), 21 km |
How Stittsville North 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 Stittsville North’s would only repeat its figures. No closer places have figures: these lie 22–24 km from Stittsville North.
Stittsville North 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 month with the widest range: March, −28.5°C to 26.5°C
January is the least predictable month: about two years in three its average lands within 3.1°C of the normal, −9.6°C. June is the steadiest, within 1.1°C.
Where Stittsville North’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Ottawa (City), the nearest location with a full year of temperatures.
- 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 Stittsville North’s climate
How warm does Stittsville North get in summer?
The warmest month is July, when afternoons average 26.7°C.
How cold does Stittsville North get in winter?
Of all twelve months, January has the coldest nights, about −14.0°C.
How much rain and snow does Stittsville North get?
938 mm a year counting snow as water. The wettest month is June (95 mm); the driest, February (52 mm).
How long does snow stay on the ground?
On about 115 days a year the ground keeps at least 1 cm of snow.
Are these figures for Stittsville North itself?
Almost: ECCC’s Ottawa (City) location, which gives these figures, lies a short way outside Stittsville North.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Stittsville North →
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).