Photo: P199 · CC BY-SA 3.0The climate in Keswick sits close to the middle of Canadian towns
A typical January night drops to −11.7°C and a July afternoon reaches 26.3°C; 883 mm of rain and snow falls in a year. Its July heat outdoes that of 63% of Canadian towns. Seasons differ by 38°C, from the coldest nights to the warmest afternoons. Plan for rain or snow on about 129 days a year, the days with 1 mm or more.
No ECCC station in Keswick has 1991–2020 normals; the page reads Udora, 21 km east, instead.
A year in Keswick at a glance
Each month’s typical high and low, in °C.
What stands out about Keswick’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Keswick feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 159 days, 20°C on 121
The frost season runs October to May, and January freezes nearly every night. Deep cold, under −20°C, comes on about 10 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
883 mm of precipitation in a typical year
June brings the most rain and snow; March, the least.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 167 cm of snow a year
Snow falls from October to April, most of all in January (about 42 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Keswick
92% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Measured against 18°C: each day’s shortfall in mean temperature, added over twelve months. That means homes here need less heating than 67% of Canadian towns.
Living with Keswick’s climate
What the normals mean for a garden, a day outside and the depth of winter.
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 typical year is calm by definition; Keswick’s hazards page covers the exceptions.
Flood & hazards →ECCC’s normals location: Udora
Udora is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 21 km east |
| Station altitude | 262 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | Yes |
| Coldest reading, 1991–2020 | −34.0°C |
| Hottest reading, 1991–2020 | 36.0°C |
| Next-nearest location | Egbert, 29 km |
How Keswick 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
The nearest places on a normals location of their own: those that share Keswick’s would only repeat its figures. Distances here run 12–25 km: that is how far the nearest places with figures are from Keswick.
Keswick weather by month
Month by month, 1991–2020: the usual high, low and mean, the rain and snow, and the snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −3.1°C | −11.7°C | −7.2°C | 67 mm | 42 cm |
| February | −1.8°C | −11.2°C | −6.5°C | 51 mm | 36 cm |
| March | 3.9°C | −6.1°C | −1.0°C | 50 mm | 21 cm |
| April | 11.4°C | 0.2°C | 5.8°C | 69 mm | 8 cm |
| May | 19.0°C | 6.5°C | 12.8°C | 80 mm | under 1 cm |
| June | 24.0°C | 11.8°C | 17.9°C | 103 mm | 0 cm |
| July | 26.3°C | 14.2°C | 20.3°C | 86 mm | 0 cm |
| August | 25.4°C | 13.4°C | 19.5°C | 82 mm | 0 cm |
| September | 21.5°C | 9.7°C | 15.6°C | 80 mm | 0 cm |
| October | 13.7°C | 4.2°C | 9.0°C | 78 mm | 2 cm |
| November | 6.5°C | −1.5°C | 2.5°C | 73 mm | 19 cm |
| December | 0.1°C | −7.1°C | −3.5°C | 64 mm | 40 cm |
| Year | 12.2°C | 1.9°C | 7.1°C | 883 mm | 167 cm |
March has run from −33.0°C to 27.0°C in thirty years
The month to count on least is January: one year in three its average strays more than 3.0°C from −7.2°C. June moves least, typically by 1.2°C.
Where Keswick’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Udora (the closest location with all twelve months of temperatures).
- 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: sunshine, which none of ECCC’s 450 locations publishes for 1991–2020, and the town’s own height above sea level, so no figure is adjusted for altitude.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Keswick’s climate
How warm does Keswick get in summer?
Afternoons average 26.3°C in July, the warmest time of year.
How cold does Keswick get in winter?
Winter bottoms out in January, with lows near −11.7°C.
How much rain and snow does Keswick get?
Rain and snow add up to about 883 mm of water a year; June brings the most (103 mm), March the least (50 mm).
How long does snow stay on the ground?
Count on about 98 days of snow cover a year, 1 cm or deeper.
Are these figures for Keswick itself?
They describe Udora, the nearest normals location, rather than Keswick itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Keswick →
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).