Photo: P199 · CC BY-SA 3.0More rain and snow fall on Central Manitoulin than on 80% of Canadian towns: 1,074 mm a year
January nights here settle around −13.6°C. The gap between a January night and a July afternoon is 38°C. By July afternoons alone, it runs cooler than 67% of Canadian towns. The outdoor season runs from June to September, with highs of 20–24°C.
ECCC publishes no normals for Central Manitoulin itself; the figures are those of Gore Bay, 33 km north-west.
A year in Central Manitoulin at a glance
Each month’s typical high and low, in °C.
What stands out about Central Manitoulin’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Central Manitoulin feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
153 frost days and 99 days above 20°C a year
Frost comes from October to May; in January almost every night freezes. Some 16 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
1,074 mm of precipitation in a typical year
January is the wettest month and March the driest. On about 147 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Gore Bay publishes no full year of precipitation, so these figures come from Wiarton, 140 km away.
Heating a home in Central Manitoulin
90% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Every day colder than 18°C on average adds its gap in degrees to the year’s heating total.
Living with Central Manitoulin’s climate
What the normals mean for a garden, a day outside and the depth of winter.
For long days outdoors, Jun, Jul, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →On some 40 days a year the wind chill drops past −20; mitts and a scarf earn their place.
Muggy heat with a humidex over 30 arrives on about 27 days a year.
A normal year has no blizzard, flood or heat wave in it; Central Manitoulin’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: Gore Bay
Behind the 1991–2020 normals for Gore Bay are 4 stations, which ECCC combines into one record.
| Distance from the town | 33 km north-west |
| Station altitude | 190 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Precipitation from | Wiarton, 140 km |
| Snowfall from | No location within 100 km |
| Coldest reading, 1991–2020 | −35.9°C |
| Hottest reading, 1991–2020 | 34.0°C |
| Average wind | 15.6 km/h on average, most often from the west |
| Next-nearest location | Killarney, 62 km |
How Central Manitoulin 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 Central Manitoulin whose figures come from another normals location. No closer place has figures: this one lies 29 km from Central Manitoulin.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Central Manitoulin Gore Bay | 24.4°C | −13.6°C | 1,074 mm |
| Assiginack 29 km · Killarney | 22.4°C 2.0°C cooler | −12.9°C 0.7°C milder | 912 mm |
Central Manitoulin weather by month
Average daily high and low, mean temperature and precipitation by month, 1991–2020.
| Month | High | Low | Mean | Rain & snow |
|---|---|---|---|---|
| January | −4.4°C | −13.6°C | −9.0°C | 111 mm |
| February | −3.6°C | −13.8°C | −8.7°C | 77 mm |
| March | 1.5°C | −8.5°C | −3.5°C | 66 mm |
| April | 9.0°C | −1.1°C | 4.0°C | 84 mm |
| May | 16.4°C | 5.4°C | 11.0°C | 82 mm |
| June | 21.9°C | 11.0°C | 16.5°C | 79 mm |
| July | 24.4°C | 14.3°C | 19.4°C | 70 mm |
| August | 24.0°C | 14.1°C | 19.1°C | 83 mm |
| September | 19.5°C | 10.2°C | 14.9°C | 99 mm |
| October | 12.2°C | 4.5°C | 8.3°C | 110 mm |
| November | 5.4°C | −1.1°C | 2.2°C | 110 mm |
| December | −0.3°C | −7.2°C | −3.8°C | 104 mm |
| Year | 10.5°C | 1.2°C | 5.9°C | 1,074 mm |
From year to year, January moves by 3.6°C, more than any month, and June least
Bars run from each month’s record low to its record high since 1991. March spans the most, from −32.3°C (2003) to 17.7°C (1995).
Where Central Manitoulin’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Gore Bay, 1991–2020, chosen as the nearest location with a full temperature record.
- Other locations: where a location publishes no full year of precipitation or snowfall, the nearest one that does supplies it, named beside those figures.
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- Not on this page: snow, with no complete snowfall normals within 100 km, sunshine, which ECCC published for no location, and any height adjustment.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Central Manitoulin’s climate
How warm does Central Manitoulin get in summer?
Summer peaks in July: a typical afternoon reaches 24.4°C.
How cold does Central Manitoulin get in winter?
Midwinter means February, when a typical night reaches −13.8°C.
How much rain and snow does Central Manitoulin get?
Precipitation totals 1,074 mm a year, with January the wettest month (111 mm) and March the driest (66 mm).
Are these figures for Central Manitoulin itself?
Not directly: Central Manitoulin has no ECCC normals of its own, and Gore Bay stands in for it.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Central Manitoulin →
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).