Sundridge sits near the top of Canadian towns for snow: about 312 cm a year
The warmest part of a July day comes in at 24.3°C on average. Winter nights are cold: in January they are colder than in 81% of Canadian towns. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 42°C apart. Plan for rain or snow on about 133 days a year, the days with 1 mm or more.
Far-off figures: ECCC’s closest normals for Sundridge come from North Bay, 65 km north, so take them as the area’s climate.
A year in Sundridge at a glance
Each month’s typical high and low, in °C.
What stands out about Sundridge’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Sundridge feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 176 days, 20°C on 96
Frost comes from September to May; in January almost every night freezes. Some 28 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
Rain and melted snow: about 1,020 mm a year
September brings the most rain and snow; February, the least.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 312 cm of snow a year
From October to May snow is likely; December is the peak, at about 71 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Sundridge
90% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Measured against 18°C: each day’s shortfall in mean temperature, added over twelve months. In heating terms, homes need more heating than 72% of Canadian towns.
Living with Sundridge’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Seedlings can go out once the average last frost, around 15 May, has passed; autumn’s first, near 29 September, ends a season of about 135 days.
Highs of 17–27°C with nights of 8°C or more come in Jun, Jul, Aug and Sep.
Parks & trails →Plan for about 61 days a year with a wind chill below −20.
Humid summer days, the humidex above 30, number about 25 a year.
For the weather that does damage, from ice storms to floods, see Sundridge’s hazards page.
Flood & hazards →ECCC’s normals location: North Bay
North Bay is a composite: ECCC joins 3 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 65 km north |
| Station altitude | 370 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −39.3°C |
| Hottest reading, 1991–2020 | 35.3°C |
| Average wind | 14.0 km/h on average, most often from the south-west |
| Next-nearest location | Muskoka, 90 km |
How Sundridge compares
Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in Ontario.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Sundridge’s own would show the same figures). No closer place has figures: this one lies 17 km from Sundridge.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Sundridge North Bay | 24.3°C | −17.3°C | 1,020 mm |
| Burk's Falls 17 km · Muskoka | 25.3°C 1.0°C warmer | −15.3°C 2.0°C milder | 1,062 mm |
Sundridge 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 | −7.4°C | −17.3°C | −12.3°C | 70 mm | 70 cm |
| February | −5.6°C | −15.9°C | −10.8°C | 54 mm | 63 cm |
| March | 0.7°C | −9.6°C | −4.5°C | 60 mm | 39 cm |
| April | 8.6°C | −1.8°C | 3.4°C | 72 mm | 18 cm |
| May | 17.0°C | 5.7°C | 11.4°C | 89 mm | 4 cm |
| June | 22.0°C | 11.1°C | 16.6°C | 91 mm | under 1 cm |
| July | 24.3°C | 13.7°C | 19.0°C | 98 mm | 0 cm |
| August | 23.1°C | 12.8°C | 18.0°C | 93 mm | 0 cm |
| September | 18.5°C | 8.3°C | 13.4°C | 114 mm | under 1 cm |
| October | 10.6°C | 2.3°C | 6.5°C | 109 mm | 9 cm |
| November | 3.1°C | −4.3°C | −0.6°C | 97 mm | 38 cm |
| December | −3.8°C | −11.7°C | −7.8°C | 73 mm | 71 cm |
| Year | 9.3°C | −0.6°C | 4.4°C | 1,020 mm | 312 cm |
In March, anything from −33.1°C to 25.2°C
January is the least predictable month: about two years in three its average lands within 3.4°C of the normal, −12.3°C. June is the steadiest, within 1.3°C.
Where Sundridge’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for North Bay, the nearest location with a full year 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, absent from every 1991–2020 location, and an altitude correction, for want of the town’s own elevation.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Sundridge’s climate
How warm does Sundridge get in summer?
The year’s warmest days come in July, with highs averaging 24.3°C.
How cold does Sundridge get in winter?
At its coldest, in January, the normal low is −17.3°C.
How much rain and snow does Sundridge get?
Count on roughly 1,020 mm a year, heaviest in September (114 mm) and lightest in February (54 mm).
How long does snow stay on the ground?
A layer of at least 1 cm stays down on about 137 days a year.
Are these figures for Sundridge itself?
No: they come from North Bay, the nearest ECCC normals location, and far enough away to describe the wider area more than Sundridge.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Sundridge →
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).