Photo: Fralambert · CC BY-SA 4.0More rain and snow fall on Yamaska than on 82% of Canadian towns: 1,109 mm a year
In January the night’s low is typically −14.8°C. The gap between a January night and a July afternoon is 41°C. Winter nights are cold: in January they are colder than in 71% of Canadian towns. Windshields need scraping on about 161 mornings a year, the days the air reaches 0°C or below.
ECCC publishes no normals for Yamaska itself; the figures are those of Fleury, 24 km south.
A year in Yamaska at a glance
Each month’s typical high and low, in °C.
What stands out about Yamaska’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Yamaska feels like
Each season’s and each month’s usual high and low, 1991–2020.
161 frost days and 115 days above 20°C a year
The frost season runs September to May, and January freezes nearly every night. Some 20 nights a year drop under −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
1,109 mm of precipitation in a typical year
August is the wettest month and February the driest. About 145 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 202 cm in a normal year
From October to April snow is likely; December is the peak, at about 49 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Yamaska
92% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Behind the figure: the degrees each day’s mean falls under 18°C, summed for the year.
Living with Yamaska’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
From about 12 May to 27 September the garden is usually clear of frost, some 136 days.
Plan time outside for Jun, Jul, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →Thirty-year normals hide the storms and the extremes: the hazards page has Yamaska’s risks.
Flood & hazards →ECCC’s normals location: Fleury
Fleury is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 24 km south |
| Station altitude | 31 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −39.0°C |
| Hottest reading, 1991–2020 | 35.1°C |
| Next-nearest location | Nicolet, 32 km |
How Yamaska 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
Nearby places read from a different ECCC location (places on Yamaska’s own would show the same figures).
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Yamaska Fleury | 26.0°C | −14.8°C | 1,109 mm |
| Saint-Robert 4.7 km · Fleury | 26.0°C about the same | −14.8°C about the same | 1,109 mm |
| Saint-François-du-Lac 9.8 km · Nicolet | 25.7°C about the same | −16.4°C 1.6°C colder | 948 mm |
Yamaska weather by month
Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.8°C | −14.8°C | −10.5°C | 81 mm | 45 cm |
| February | −3.8°C | −13.6°C | −8.6°C | 61 mm | 43 cm |
| March | 1.8°C | −7.3°C | −2.7°C | 71 mm | 38 cm |
| April | 10.5°C | 0.6°C | 5.8°C | 96 mm | 13 cm |
| May | 19.1°C | 7.4°C | 13.2°C | 98 mm | under 1 cm |
| June | 23.9°C | 12.7°C | 18.4°C | 102 mm | 0 cm |
| July | 26.0°C | 14.9°C | 20.2°C | 106 mm | 0 cm |
| August | 25.0°C | 13.7°C | 19.3°C | 114 mm | 0 cm |
| September | 20.7°C | 9.4°C | 15.1°C | 97 mm | 0 cm |
| October | 13.0°C | 3.6°C | 8.4°C | 108 mm | 2 cm |
| November | 5.5°C | −2.0°C | 1.9°C | 90 mm | 12 cm |
| December | −2.0°C | −9.3°C | −5.9°C | 85 mm | 49 cm |
| Year | 11.2°C | 1.3°C | 6.2°C | 1,109 mm | 202 cm |
In March, anything from −31.0°C to 25.5°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 (±3.1°C around −10.5°C), August the one that wanders least (±0.9°C).
Where Yamaska’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, Fleury: the nearest of its locations with every month’s temperatures.
- 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, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Yamaska’s climate
How warm does Yamaska get in summer?
Afternoons average 26.0°C in July, the warmest time of year.
How cold does Yamaska get in winter?
January nights average −14.8°C, the coldest of the year.
How much rain and snow does Yamaska get?
Over twelve months, rain and melted snow come to 1,109 mm; the range runs from 61 mm in February to 114 mm in August.
How long does snow stay on the ground?
Snow lies on the ground for about 106 days in a normal year.
Are these figures for Yamaska itself?
They come from Fleury, which ECCC uses as the nearest normals location for Yamaska.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Yamaska →
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).