Stanstead is wetter than 91% of Canadian towns: 1,217 mm of rain and snow a year
Nights in January average −13.9°C. In July, afternoons here are cooler than in 66% of Canadian towns. June is the wettest month, February the driest. Expect about 163 frosty starts a year, days when the air falls to freezing.
The nearest ECCC normals location to Stanstead is Coaticook, 29 km east, and every figure on this page is its.
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.
About 163 frosts and 103 warm days 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
About 1,217 mm of rain and snow a year
Some 158 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 291 cm of snow a year
From October to May snow is likely; December is the peak, at 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.
The count adds up, day by day, how far the mean temperature falls short of 18°C.
Living with Stanstead’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
About 133 days a year pass without frost, from an average last frost of 19 May to a first of 30 September.
The outdoor season by the averages is Jun, Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →For the weather that does damage, from ice storms to floods, see Stanstead’s hazards page.
Flood & hazards →ECCC’s normals location: Coaticook
Coaticook is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 29 km 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 | Lennoxville, 38 km |
How Stanstead compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Quebec.
Nearby towns’ climate
Places around Stanstead whose figures come from another normals location.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Stanstead Coaticook | 24.7°C | −13.9°C | 1,217 mm |
| Ayer's Cliff 11 km · Coaticook | 24.7°C about the same | −13.9°C about the same | 1,217 mm |
| Magog 16 km · Lennoxville | 25.7°C 1.0°C warmer | −14.9°C 1.0°C colder | 1,015 mm |
| Bolton-Est 16 km · Sutton | 25.3°C 0.6°C warmer | −13.5°C about the same | 1,340 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 |
From year to year, January moves by 3.1°C, more than any month, and August least
February has the widest record range, −35.5°C in 1993 to 18.9°C in 2018; the tick on each bar is the month’s normal.
Where Stanstead’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Coaticook, the closest ECCC location with twelve months of temperature normals.
- Comparisons: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest location.
- 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 Stanstead’s climate
How warm does Stanstead get in summer?
The warmest month is July, when afternoons average 24.7°C.
How cold does Stanstead get in winter?
In January, the coldest month, the typical low is −13.9°C.
How much rain and snow does Stanstead get?
June is the wettest month at 130 mm and February the driest at 74 mm, for 1,217 mm over the year.
How long does snow stay on the ground?
A layer of at least 1 cm stays down on about 125 days a year.
Are these figures for Stanstead itself?
Not directly: Stanstead has no ECCC normals of its own, and Coaticook stands in for it.
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).