Photo: Chicoutimi · CC BY-SA 3.0Wet weather: 1,217 mm of rain and snow a year falls on Stanstead, more than on 91% of Canadian towns
In January the night’s low is typically −13.9°C. Its July afternoons stay fresher than in 66% of Canadian towns. Winter and summer sit 39°C apart. Plan for rain or snow on about 158 days a year, the days with 1 mm or more.
ECCC publishes no normals for Stanstead itself; the figures are those of Coaticook, 29 km north-east.
A year in Stanstead at a glance
Each month’s typical high and low, in °C.
What stands out about Stanstead’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Stanstead feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
163 frost days and 103 days above 20°C a year
From September to May frost is routine, and in January it comes on almost every night. On about 18 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
Rain and melted snow: about 1,217 mm a year
The most falls in June, the least in February.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 291 cm of snow a year
The snow season runs October to May; December brings the most, about 71 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Stanstead
91% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Heating degree days total each day’s gap between its mean temperature and 18°C.
Living with Stanstead’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Between the last frost, near 19 May, and the first, near 30 September, lie about 133 frost-free days.
For long days outdoors, Jun, Jul, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →Thirty-year normals hide the storms and the extremes: the hazards page has Stanstead’s risks.
Flood & hazards →ECCC’s normals location: Coaticook
The page’s figures are ECCC’s 1991–2020 normals for Coaticook, one of its 450 normals locations.
| Distance from the town | 29 km north-east |
| Station altitude | 259 m |
| Completeness | at least 15 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −35.5°C |
| Hottest reading, 1991–2020 | 33.0°C |
| Next-nearest location | Sutton, 46 km |
How Stanstead 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 Quebec.
Nearby towns’ climate
Places around Stanstead whose figures come from another normals location. Distances here run 25–29 km: that is how far the nearest places with figures are from Stanstead.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Stanstead Coaticook | 24.7°C | −13.9°C | 1,217 mm |
| Potton 25 km · Sutton | 25.3°C 0.6°C warmer | −13.5°C about the same | 1,340 mm |
| Sainte-Catherine-de-Hatley 28 km · Lennoxville | 25.7°C 1.0°C warmer | −14.9°C 1.0°C colder | 1,015 mm |
Stanstead weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −4.8°C | −13.9°C | −9.5°C | 85 mm | 59 cm |
| February | −3.2°C | −12.8°C | −8.2°C | 74 mm | 61 cm |
| March | 2.0°C | −7.2°C | −2.7°C | 80 mm | 52 cm |
| April | 9.7°C | −0.1°C | 5.0°C | 90 mm | 15 cm |
| May | 17.7°C | 6.7°C | 12.1°C | 108 mm | 1 cm |
| June | 22.3°C | 11.8°C | 17.1°C | 130 mm | 0 cm |
| July | 24.7°C | 14.5°C | 19.4°C | 120 mm | 0 cm |
| August | 23.7°C | 13.5°C | 18.6°C | 120 mm | 0 cm |
| September | 19.5°C | 9.3°C | 14.4°C | 104 mm | 0 cm |
| October | 12.0°C | 3.5°C | 7.8°C | 110 mm | 5 cm |
| November | 4.9°C | −2.5°C | 1.4°C | 91 mm | 26 cm |
| December | −1.5°C | −9.2°C | −5.5°C | 106 mm | 71 cm |
| Year | 10.6°C | 1.1°C | 5.8°C | 1,217 mm | 291 cm |
The month with the widest range: February, −35.5°C to 18.9°C
Two years in three, January’s average falls within 3.1°C of its normal of −9.5°C; August keeps to within 1.0°C.
Where Stanstead’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Coaticook, the nearest location with a full year of temperatures.
- Comparisons: every Canadian town and neighbourhood of 2,500 or more, each read from its own nearest location; city totals and reserves are left out.
- Not on this page: hours of sunshine, missing from the 1991–2020 normals, and a height correction: the town has no elevation on file.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Stanstead’s climate
How warm does Stanstead get in summer?
Highs reach 24.7°C on an average July day; no month is warmer.
How cold does Stanstead get in winter?
Winter bottoms out in January, with lows near −13.9°C.
How much rain and snow does Stanstead get?
1,217 mm a year counting snow as water. The wettest month is June (130 mm); the driest, February (74 mm).
How long does snow stay on the ground?
There is 1 cm of snow or more on the ground on roughly 125 days a year.
Are these figures for Stanstead itself?
They describe Coaticook, the nearest normals location, rather than Stanstead itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Stanstead →
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).