Photo: P199 · CC BY-SA 3.0Few Canadian towns get more snow than Strong: about 312 cm a year
Peak summer warmth arrives in July, with afternoons near 24.3°C. Winter nights are cold: in January they are colder than in 81% of Canadian towns. The gap between a January night and a July afternoon is 42°C. The heating season runs October to April: each of those months averages under 10°C.
Strong has no ECCC normals station nearby: the figures come from North Bay, 70 km north, so read them as the wider area’s climate.
A year in Strong at a glance
Each month’s typical high and low, in °C.
What stands out about Strong’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Strong feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
176 frost days and 96 days above 20°C a year
From September to May frost is routine, and in January it comes on almost every night. Deep cold, under −20°C, comes on about 28 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 1,020 mm a year
The most falls in September, the least in February. Some 133 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
312 cm of snow in a typical year
Snow falls from October to May, most of all in December (about 71 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Strong
90% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
One degree below 18°C for one day makes one heating degree day; the year’s days are added together. That means homes here need more heating than 72% of Canadian towns.
Living with Strong’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Frost usually lets go around 15 May and returns near 29 September, about 135 days apart.
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 →A wind chill below −20 is part of about 61 days a year here.
About 25 days a year feel above 30 on the humidex.
Thirty years of averages say little about one bad storm; Strong’s hazards page does.
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 | 70 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, 85 km |
How Strong 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
The nearest places on a normals location of their own: those that share Strong’s would only repeat its figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Strong North Bay | 24.3°C | −17.3°C | 1,020 mm |
| Sundridge 5.5 km · North Bay | 24.3°C about the same | −17.3°C about the same | 1,020 mm |
| Burk's Falls 13 km · Muskoka | 25.3°C 1.0°C warmer | −15.3°C 2.0°C milder | 1,062 mm |
Strong weather by month
Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.
| 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 |
January varies most from one year to the next (3.4°C), June least
Each bar spans a month’s coldest and warmest readings over thirty years; March’s run from −33.1°C in 2003 to 25.2°C in 2012.
Where Strong’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for North Bay from ECCC’s climate data site, the nearest location with every month of temperature.
- 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: sunshine (no 1991–2020 normals exist for it) and any altitude adjustment, since there is no elevation for the town itself.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Strong’s climate
How warm does Strong get in summer?
July is the warmest month, with average highs of 24.3°C.
How cold does Strong get in winter?
Overnight lows average −17.3°C in January, the coldest month.
How much rain and snow does Strong get?
The yearly total is about 1,020 mm. September gets 114 mm, the most of any month; February gets 54 mm, the least.
How long does snow stay on the ground?
About 137 days a year have 1 cm of snow or more on the ground.
Are these figures for Strong itself?
No. The nearest normals are those of North Bay, a long way from Strong.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Strong →
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).