July in Kemptville runs hotter than in 83% of Canadian towns
January mornings start at about −14.0°C. Precipitation peaks in July and eases off in February. Garden chairs stay out from June to September, the months with highs of 21–27°C.
Measured at Kemptville, 2.2 km east: ECCC’s normals for 1991–2020.
A year in Kemptville at a glance
Each month’s typical high and low, in °C.
What stands out about Kemptville’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Kemptville feels like
Each season’s and each month’s usual high and low, 1991–2020.
157 frost days and 121 days above 20°C a year
The frost season runs October to May, and January freezes nearly every night. On about 17 nights a year the air falls below −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 925 mm of rain and snow a year
On about 116 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
232 cm of snow in a typical year
Snow falls from October to April, most of all in January (about 59 cm).
Snowfall by month
Centimetres
ECCC’s Kemptville normals leave snowfall out; the figures here come from Ottawa (Airport), 36 km away.
Heating a home in Kemptville
92% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
The total grows by a degree for every degree a day’s mean sits under 18°C.
Living with Kemptville’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Jul, Aug and Sep.
Parks & trails →A wind chill below −20 is part of about 32 days a year here.
The air feels heavier than 30 on the humidex for about 53 days a year.
For blizzards, floods and wildfire, turn to Kemptville’s hazards page.
Flood & hazards →ECCC’s normals location: Kemptville
Behind the 1991–2020 normals for Kemptville are 2 stations, which ECCC combines into one record.
| Distance from the town | 2.2 km east |
| Station altitude | 99 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Ottawa (Airport), 36 km |
| Coldest reading, 1991–2020 | −35.0°C |
| Hottest reading, 1991–2020 | 36.7°C |
| Average wind | 8.3 km/h on average, most often from the south-west |
| Next-nearest location | Ottawa (Airport), 36 km |
How Kemptville 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 Kemptville whose figures come from another normals location. Distances here run 25–39 km: that is how far the nearest places with figures are from Kemptville.
Kemptville weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −4.3°C | −14.0°C | −9.1°C | 70 mm | 59 cm |
| February | −2.4°C | −12.9°C | −7.7°C | 52 mm | 49 cm |
| March | 3.4°C | −7.0°C | −1.8°C | 62 mm | 39 cm |
| April | 11.4°C | 0.3°C | 5.9°C | 88 mm | 12 cm |
| May | 19.3°C | 6.9°C | 13.1°C | 73 mm | under 1 cm |
| June | 24.3°C | 12.3°C | 18.3°C | 82 mm | 0 cm |
| July | 26.8°C | 14.8°C | 20.8°C | 98 mm | 0 cm |
| August | 25.6°C | 13.7°C | 19.7°C | 75 mm | 0 cm |
| September | 21.3°C | 9.4°C | 15.4°C | 83 mm | 0 cm |
| October | 13.6°C | 3.6°C | 8.6°C | 92 mm | 3 cm |
| November | 6.3°C | −2.3°C | 2.0°C | 79 mm | 21 cm |
| December | −0.9°C | −8.8°C | −4.9°C | 72 mm | 50 cm |
| Year | 12.0°C | 1.3°C | 6.7°C | 925 mm | 232 cm |
In March, anything from −28.3°C to 26.3°C
Bars run from each month’s record low to its record high over 1991–2020; January is the month whose average wanders most from year to year (±3.0°C around −9.1°C), June the one that wanders least (±1.1°C).
Where Kemptville’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Kemptville, 1991–2020, chosen as the nearest location with a full temperature record.
- Other locations: precipitation and snowfall come from the nearest location that publishes all twelve months of them, as named above.
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- 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 Kemptville’s climate
How warm does Kemptville get in summer?
Expect highs near 26.8°C in July, the hottest month on average.
How cold does Kemptville get in winter?
The year’s coldest nights belong to January, at about −14.0°C.
How much rain and snow does Kemptville get?
About 925 mm a year, rain and melted snow together. July is the wettest month (98 mm) and February the driest (52 mm).
Are these figures for Kemptville itself?
They are: the normals station that gives them stands in Kemptville.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Kemptville →
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).