Frost comes to Guernsey less often than to 92% of Canadian towns
The warmest part of a July day comes in at 25.5°C on average. A year here swings 32°C from midwinter lows to midsummer highs. About 114 days a year bring 1 mm of precipitation or more.
No ECCC station in Guernsey has 1991–2020 normals; the page reads Burlington Piers, 11 km north-west, instead.
A year in Guernsey at a glance
Each month’s typical high and low, in °C.
What stands out about Guernsey’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Guernsey feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on about 98 days a year
Frost comes from November to April, most of all in January (about 25 nights).
Frost days by month
Average days at 0°C or below
902 mm of precipitation in a typical year
The most falls in July, the least in February.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Precipitation: Hamilton, 19 km away (Burlington Piers records no complete year of it).
Snowfall: about 141 cm in a normal year
Expect snow from November to April, with about 44 cm in January, the snowiest month.
Snowfall by month
Centimetres
Burlington Piers publishes no full year of snowfall, so these figures come from Welland-Pelham, 45 km away.
Living with Guernsey’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Plan time outside for Jun, Jul, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →The wind chill passes −20 on about 10 days in a normal year.
Count on some 46 humid days a year with the humidex past 30.
Thirty-year normals hide the storms and the extremes: the hazards page has Guernsey’s risks.
Flood & hazards →ECCC’s normals location: Burlington Piers
The page’s figures are ECCC’s 1991–2020 normals for Burlington Piers, one of its 450 normals locations.
| Distance from the town | 11 km north-west |
| Station altitude | 77 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Precipitation from | Hamilton, 19 km |
| Snowfall from | Welland-Pelham, 45 km |
| Coldest reading, 1991–2020 | −25.3°C |
| Hottest reading, 1991–2020 | 36.0°C |
| Average wind | 13.3 km/h on average, most often from the west |
| Next-nearest location | Hamilton, 19 km |
How Guernsey 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
The nearest places on a normals location of their own: those that share Guernsey’s would only repeat its figures. The nearest place to Guernsey with figures is 12 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Guernsey Burlington Piers | 25.5°C | −6.3°C | 902 mm |
| Grimsby 12 km · Vineland | 27.1°C 1.6°C warmer | −6.8°C 0.5°C colder | 838 mm |
Guernsey 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 | 0.1°C | −6.3°C | −3.1°C | 73 mm | 44 cm |
| February | 0.7°C | −5.9°C | −2.6°C | 53 mm | 24 cm |
| March | 4.7°C | −1.9°C | 1.4°C | 69 mm | 28 cm |
| April | 10.3°C | 3.3°C | 6.9°C | 81 mm | 5 cm |
| May | 16.7°C | 9.0°C | 12.9°C | 81 mm | 0 cm |
| June | 22.4°C | 15.1°C | 18.8°C | 78 mm | 0 cm |
| July | 25.5°C | 18.3°C | 21.9°C | 98 mm | 0 cm |
| August | 24.9°C | 18.3°C | 21.6°C | 67 mm | 0 cm |
| September | 21.4°C | 14.6°C | 18.1°C | 74 mm | 0 cm |
| October | 14.8°C | 8.3°C | 11.6°C | 84 mm | under 1 cm |
| November | 8.4°C | 2.7°C | 5.6°C | 78 mm | 9 cm |
| December | 2.9°C | −2.5°C | 0.2°C | 67 mm | 32 cm |
| Year | 12.7°C | 6.1°C | 9.4°C | 902 mm | 141 cm |
From −21.2°C to 24.4°C: March’s coldest and warmest days since 1991
Year to year, February varies most (a standard deviation of 2.7°C around −2.6°C) and August least (1.1°C).
Where Guernsey’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Burlington Piers, 1991–2020, chosen as the nearest location with a full temperature record.
- 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: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- 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 Guernsey’s climate
How warm does Guernsey get in summer?
A normal July afternoon tops out at about 25.5°C, the year’s high point.
How cold does Guernsey get in winter?
Winter bottoms out in January, with lows near −6.3°C.
How much rain and snow does Guernsey get?
July is the wettest month at 98 mm and February the driest at 53 mm, for 902 mm over the year.
Are these figures for Guernsey itself?
Not as such: Burlington Piers is the nearest normals location, and Guernsey has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Guernsey →
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).