Precipitation in Saint-Simon tops that of 82% of Canadian towns: 1,109 mm a year
On a normal January night the air cools to about −14.8°C. In January, nights here are colder than in 71% of Canadian towns. Of all months, August brings the most precipitation and February the least. Picnics, hikes and garden evenings come into their own from June to September, with highs of 21–26°C.
Borrowed figures: Saint-Simon has no normals station, so these come from Fleury, 16 km north-west.
A year in Saint-Simon at a glance
Each month’s typical high and low, in °C.
What stands out about Saint-Simon’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Saint-Simon feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on 161 days, 20°C on 115
Frost comes from September to May; in January almost every night freezes. Deep cold, under −20°C, comes on about 20 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 1,109 mm a year
Some 145 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 202 cm of snow a year
Expect snow from October to April, with about 49 cm in December, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Saint-Simon
92% 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 Saint-Simon’s climate
What the normals mean for a garden, a day outside and the depth of winter.
A normal year gives the garden about 136 frost-free days, roughly 12 May to 27 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 →What averages leave out, the floods and ice storms, is on Saint-Simon’s hazards page.
Flood & hazards →ECCC’s normals location: Fleury
The page’s figures are ECCC’s 1991–2020 normals for Fleury, one of its 450 normals locations.
| Distance from the town | 16 km north-west |
| 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 | Drummondville, 34 km |
How Saint-Simon 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 Quebec.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Saint-Simon’s would only repeat its figures. The nearest places to Saint-Simon with figures are 16–22 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Saint-Simon Fleury | 26.0°C | −14.8°C | 1,109 mm |
| Saint-Dominique 16 km · Granby | 25.6°C about the same | −13.4°C 1.4°C milder | 1,226 mm |
| Saint-Eugène 16 km · Drummondville | 26.0°C about the same | −14.2°C 0.6°C milder | 1,070 mm |
Saint-Simon 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 | −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 |
The month with the widest range: March, −31.0°C to 25.5°C
January is the least predictable month: about two years in three its average lands within 3.1°C of the normal, −10.5°C. August is the steadiest, within 0.9°C.
Where Saint-Simon’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Fleury, 1991–2020, chosen as the nearest location with a full temperature record.
- 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, absent from every 1991–2020 location, and an altitude correction, for want of the town’s own elevation.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Saint-Simon’s climate
How warm does Saint-Simon get in summer?
The warmest month is July, when afternoons average 26.0°C.
How cold does Saint-Simon get in winter?
January nights average −14.8°C, the coldest of the year.
How much rain and snow does Saint-Simon get?
Rain and snow, with snow counted as water, total 1,109 mm a year; August leads with 114 mm and February trails with 61 mm.
How long does snow stay on the ground?
Count on about 106 days of snow cover a year, 1 cm or deeper.
Are these figures for Saint-Simon itself?
They come from Fleury, which ECCC uses as the nearest normals location for Saint-Simon.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Saint-Simon →
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).