Photo: DXR · CC BY-SA 4.0The climate in Kingston sits close to the middle of Canadian towns
A typical July afternoon reaches 25.4°C, a January night drops to −11.5°C, and 984 mm of rain and snow falls in a year. It is a wet place: more rain and snow fall here than on 67% of Canadian towns. Seasons differ by 37°C, from the coldest nights to the warmest afternoons. Picnics, hikes and garden evenings come into their own from June to September, with highs of 21–25°C.
Environment and Climate Change Canada’s 1991–2020 normals, measured at Kingston, 6.8 km south-west.
A year in Kingston at a glance
Each month’s typical high and low, in °C.
What stands out about Kingston’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Kingston feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 984 mm of rain and snow a year
The most falls in September, the least in February. On about 128 days a year, 1 mm or more falls.
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, 35 km away.
Snowfall: about 158 cm in a normal year
From October to April snow is likely; January is the peak, at about 45 cm.
Snowfall by month
Centimetres
Living with Kingston’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The outdoor season by the averages is Jun, Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →Severe weather is a separate story from the averages: see Kingston’s hazards page.
Flood & hazards →ECCC’s normals location: Kingston
Kingston is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 6.8 km south-west |
| Station altitude | 93 m |
| Completeness | at least 15 years |
| WMO standard normals | No |
| Precipitation from | Centreville, 35 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, 35 km |
How Kingston 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 Kingston whose figures come from another normals location. Kingston has few close neighbours with figures, so the list reaches 34–42 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Kingston | 25.4°C | −11.5°C | 984 mm |
| Stone Mills 34 km · Centreville | 27.2°C 1.8°C warmer | −12.4°C 0.9°C colder | 984 mm |
| Leeds and the Thousand Islands 41 km · Brockville | 26.1°C 0.7°C warmer | −11.3°C about the same | 1,017 mm |
Kingston 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 February here can run warm or cold, its average moving by about 3.2°C; the steadiest month is June
Bars run from each month’s record low to its record high since 1991. January spans the most, from −32.8°C (2018) to 13.5°C (1995).
Where Kingston’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Kingston (the closest location with all twelve months of temperatures).
- 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: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- 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 Kingston’s climate
How warm does Kingston get in summer?
At its warmest, in July, the normal high is 25.4°C.
How cold does Kingston get in winter?
On a normal January night the air drops to −11.5°C, the coldest of the year.
How much rain and snow does Kingston get?
Rain and snow add up to about 984 mm of water a year; September brings the most (100 mm), February the least (61 mm).
Are these figures for Kingston itself?
Yes: ECCC’s normals station is inside Kingston itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Kingston →
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).