Photo: P199 · CC BY-SA 3.0July in Central Frontenac runs hotter than in 89% of Canadian towns
In January the night’s low is typically −12.4°C. Expect the most rain and snow in September and the least in February. It is a wet place: more rain and snow fall here than on 67% of Canadian towns. The outdoor season, with highs of 22–26°C, runs through June, August and September.
Borrowed figures: Central Frontenac has no normals station, so these come from Centreville, 41 km south.
A year in Central Frontenac at a glance
Each month’s typical high and low, in °C.
What stands out about Central Frontenac’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Central Frontenac feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 154 frosts and 124 warm days a year
Frost comes from October to May; in January almost every night freezes. Some 13 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
984 mm of precipitation in a typical year
On about 128 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 158 cm in a normal year
The snow season runs October to April; January brings the most, about 45 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Central Frontenac
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Each day the mean sits under 18°C adds its shortfall; a year’s total is its heating degree days. Homes here need less heating than 67% of Canadian towns.
Living with Central Frontenac’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, Aug and Sep.
Parks & trails →A normal year has no blizzard, flood or heat wave in it; Central Frontenac’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: Centreville
Centreville is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 41 km south |
| Station altitude | 150 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −37.0°C |
| Hottest reading, 1991–2020 | 37.5°C |
| Next-nearest location | Drummond Centre, 50 km |
How Central Frontenac compares
Placed among 2,611 Canadian towns and neighbourhoods of 2,500+, each on its nearest normals location; each dot is another location used in Ontario.
Nearby towns’ climate
Places around Central Frontenac whose figures come from another normals location. No closer places have figures: these lie 31–46 km from Central Frontenac.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Central Frontenac Centreville | 27.2°C | −12.4°C | 984 mm |
| Tay Valley 31 km · Drummond Centre | 27.1°C about the same | −14.2°C 1.8°C colder | 939 mm |
| South Frontenac 37 km · Kingston | 25.4°C 1.8°C cooler | −11.5°C 0.9°C milder | 984 mm |
| Rideau Lakes 46 km · Brockville | 26.1°C 1.1°C cooler | −11.3°C 1.1°C milder | 1,017 mm |
Central Frontenac weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −2.9°C | −12.4°C | −7.7°C | 86 mm | 45 cm |
| February | −1.4°C | −11.6°C | −6.5°C | 61 mm | 34 cm |
| March | 4.1°C | −6.3°C | −1.4°C | 65 mm | 24 cm |
| April | 11.9°C | 0.8°C | 6.3°C | 88 mm | 7 cm |
| May | 19.6°C | 7.2°C | 13.4°C | 84 mm | under 1 cm |
| June | 24.4°C | 12.2°C | 18.4°C | 90 mm | 0 cm |
| July | 27.2°C | 14.9°C | 21.1°C | 68 mm | 0 cm |
| August | 26.2°C | 13.9°C | 20.1°C | 75 mm | 0 cm |
| September | 21.9°C | 9.9°C | 15.9°C | 100 mm | 0 cm |
| October | 14.1°C | 3.9°C | 9.0°C | 96 mm | 1 cm |
| November | 6.9°C | −1.7°C | 2.6°C | 88 mm | 12 cm |
| December | 0.4°C | −7.5°C | −3.6°C | 83 mm | 35 cm |
| Year | 12.7°C | 1.9°C | 7.3°C | 984 mm | 158 cm |
January strays furthest from its normal year to year, by 3.1°C; June the least
Bars run from each month’s record low to its record high since 1991. March spans the most, from −28.0°C (2003) to 27.5°C (2012).
Where Central Frontenac’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Centreville, 1991–2020, chosen as the nearest location with a full temperature record.
- Comparisons: a pool of Canadian towns and neighbourhoods of 2,500 or more, read alike; whole cities and reserves stay out of it.
- Not on this page: a sunshine figure (ECCC published none for 1991–2020) and any lapse-rate correction for height, as the town has no elevation here.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Central Frontenac’s climate
How warm does Central Frontenac get in summer?
At its warmest, in July, the normal high is 27.2°C.
How cold does Central Frontenac get in winter?
The coldest nights come in January, averaging −12.4°C.
How much rain and snow does Central Frontenac get?
About 984 mm a year, rain and melted snow together. September is the wettest month (100 mm) and February the driest (61 mm).
Are these figures for Central Frontenac itself?
No. ECCC measures normals at Centreville, not in Central Frontenac; the page uses the nearest it has.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Central Frontenac →
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).