Photo: Glenn Ford · CC BY-SA 3.0Midwinter lows in Petawawa sink below those of 83% of Canadian towns
Midsummer highs settle at about 26.3°C. Summer afternoons here are warmer than in 63% of Canadian towns. Temperatures cover 44°C across the year, low to high. The furnace earns its keep from October to April, the months that average under 10°C.
Environment and Climate Change Canada’s 1991–2020 normals, measured at Petawawa, 7.4 km north-west.
A year in Petawawa at a glance
Each month’s typical high and low, in °C.
What stands out about Petawawa’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Petawawa feels like
Each season’s and each month’s usual high and low, 1991–2020.
Rain and melted snow: about 932 mm a year
June is the wettest month and February the driest. On about 132 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
199 cm of snow in a typical year
From October to April snow is likely; January is the peak, at about 49 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Living with Petawawa’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Afternoons of 17–27°C and nights of at least 8°C arrive in Jun, Jul and Aug.
Parks & trails →Winter brings about 52 days with a wind chill below −20.
Muggy heat with a humidex over 30 arrives on about 46 days a year.
A normal year has no blizzard, flood or heat wave in it; Petawawa’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: Petawawa
ECCC builds the Petawawa normals from 3 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 7.4 km north-west |
| Station altitude | 130 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −39.8°C |
| Hottest reading, 1991–2020 | 36.9°C |
| Average wind | 9.6 km/h on average, most often from the south-east |
| Next-nearest location | Charteris, 70 km |
How Petawawa compares
Placed among 2,611 Canadian towns and neighbourhoods of 2,500+, each on its nearest normals location; each dot is another location used in Ontario.
Nearby towns’ climate
Places around Petawawa whose figures come from another normals location. Petawawa has no close neighbour with figures; the nearest is 37 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Petawawa | 26.3°C | −17.9°C | 932 mm |
| Whitewater Region 37 km · Charteris | 26.4°C about the same | −16.9°C 1.0°C milder | 932 mm |
Petawawa 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 | −6.1°C | −17.9°C | −11.9°C | 68 mm | 49 cm |
| February | −3.6°C | −16.6°C | −10.2°C | 51 mm | 38 cm |
| March | 2.7°C | −10.0°C | −3.7°C | 58 mm | 27 cm |
| April | 10.8°C | −2.0°C | 4.5°C | 79 mm | 11 cm |
| May | 19.2°C | 4.5°C | 12.0°C | 85 mm | 1 cm |
| June | 24.0°C | 10.0°C | 17.0°C | 96 mm | 0 cm |
| July | 26.3°C | 12.3°C | 19.3°C | 89 mm | 0 cm |
| August | 25.2°C | 11.6°C | 18.4°C | 90 mm | 0 cm |
| September | 20.6°C | 7.3°C | 14.0°C | 83 mm | 0 cm |
| October | 12.8°C | 2.1°C | 7.5°C | 83 mm | 3 cm |
| November | 4.8°C | −4.1°C | 0.3°C | 77 mm | 25 cm |
| December | −2.4°C | −11.9°C | −7.3°C | 72 mm | 45 cm |
| Year | 11.2°C | −1.2°C | 5.0°C | 932 mm | 199 cm |
December varies most from one year to the next (3.1°C), June least
Each bar spans a month’s coldest and warmest readings over thirty years; March’s run from −33.4°C in 2007 to 28.8°C in 2012.
Where Petawawa’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Petawawa (the closest location with all twelve months of temperatures).
- 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 Petawawa’s climate
How warm does Petawawa get in summer?
Midsummer means July, with afternoons near 26.3°C on a typical day.
How cold does Petawawa get in winter?
A typical January night falls to −17.9°C, the year’s low point.
How much rain and snow does Petawawa get?
About 932 mm a year, rain and melted snow together. June is the wettest month (96 mm) and February the driest (51 mm).
How long does snow stay on the ground?
Around 140 days a year see 1 cm of snow or more lying.
Are these figures for Petawawa itself?
They are: the normals station that gives them stands in Petawawa.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Petawawa →
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).