Photo: Umbra Lab, Inc. · CC BY 4.0Weather without surprises: Frontenac Islands keeps close to the norm for Canadian towns
A typical year brings 984 mm of rain and melted snow, with July afternoons around 25.4°C and January nights around −11.5°C. Seasons differ by 37°C, from the coldest nights to the warmest afternoons. Counting rain and snow together, it is wetter than 67% of Canadian towns. Homes need heating from October to April, the months averaging under 10°C.
ECCC publishes no normals for Frontenac Islands itself; the figures are those of Kingston, 20 km west.
A year in Frontenac Islands at a glance
Each month’s typical high and low, in °C.
What stands out about Frontenac Islands’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Frontenac Islands feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 984 mm of rain and snow a year
September is the wettest month and February the driest. About 128 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
ECCC’s Kingston normals leave out precipitation and snow; both come from Centreville here, 50 km away.
About 158 cm of snow a year
Snow falls from October to April, most of all in January (about 45 cm).
Snowfall by month
Centimetres
Living with Frontenac Islands’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark Jun, Jul, Aug and Sep.
Parks & trails →Bad-weather days, from blizzards to floods, get their own page for Frontenac Islands: the hazards page.
Flood & hazards →ECCC’s normals location: Kingston
Behind the 1991–2020 normals for Kingston are 2 stations, which ECCC combines into one record.
| Distance from the town | 20 km west |
| Station altitude | 93 m |
| Completeness | at least 15 years |
| WMO standard normals | No |
| Precipitation from | Centreville, 50 km |
| Coldest reading, 1991–2020 | −32.8°C |
| Hottest reading, 1991–2020 | 33.7°C |
| Average wind | 14.8 km/h on average, most often from the south |
| Next-nearest location | Centreville, 50 km |
How Frontenac Islands 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 Frontenac Islands’s own would show the same figures). Distances here run 32–50 km: that is how far the nearest places with figures are from Frontenac Islands.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Frontenac Islands Kingston | 25.4°C | −11.5°C | 984 mm |
| Leeds and the Thousand Islands 32 km · Brockville | 26.1°C 0.7°C warmer | −11.3°C about the same | 1,017 mm |
| Stone Mills 48 km · Centreville | 27.2°C 1.8°C warmer | −12.4°C 0.9°C colder | 984 mm |
Frontenac Islands 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 | −2.6°C | −11.5°C | −7.0°C | 86 mm | 45 cm |
| February | −1.8°C | −10.9°C | −6.4°C | 61 mm | 34 cm |
| March | 3.2°C | −5.5°C | −1.1°C | 65 mm | 24 cm |
| April | 10.0°C | 0.9°C | 5.4°C | 88 mm | 7 cm |
| May | 17.6°C | 7.3°C | 12.4°C | 84 mm | under 1 cm |
| June | 22.1°C | 12.5°C | 17.3°C | 90 mm | 0 cm |
| July | 25.4°C | 16.1°C | 20.8°C | 68 mm | 0 cm |
| August | 24.6°C | 15.3°C | 20.0°C | 75 mm | 0 cm |
| September | 20.5°C | 10.7°C | 15.6°C | 100 mm | 0 cm |
| October | 13.8°C | 5.1°C | 9.5°C | 96 mm | 1 cm |
| November | 7.5°C | −0.6°C | 3.5°C | 88 mm | 12 cm |
| December | 1.6°C | −6.0°C | −2.2°C | 83 mm | 35 cm |
| Year | 11.8°C | 2.8°C | 7.3°C | 984 mm | 158 cm |
A January here can run from −32.8°C to 13.5°C
Bars run from each month’s record low to its record high over 1991–2020; February is the month whose average wanders most from year to year (±3.2°C around −6.4°C), June the one that wanders least (±0.9°C).
Where Frontenac Islands’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Kingston, the closest ECCC location with twelve months of temperature normals.
- 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: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- 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 Frontenac Islands’s climate
How warm does Frontenac Islands get in summer?
On a normal day in July the thermometer climbs to 25.4°C, the warmest of the year.
How cold does Frontenac Islands get in winter?
Deep winter means January, when nights average −11.5°C.
How much rain and snow does Frontenac Islands get?
Over twelve months, rain and melted snow come to 984 mm; the range runs from 61 mm in February to 100 mm in September.
Are these figures for Frontenac Islands itself?
The figures are ECCC’s for Kingston; Frontenac Islands has no normals station.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Frontenac Islands →
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).