More rain and snow fall on Saint-Jean-Baptiste than on 82% of Canadian towns: 1,109 mm a year
In January the night’s low is typically −13.6°C. A year here swings 40°C from midwinter lows to midsummer highs. Its July heat outdoes that of 70% of Canadian towns. Homes need heating from October to April, the months averaging under 10°C.
Borrowed figures: Saint-Jean-Baptiste has no normals station, so these come from L'Acadie, 30 km south-west.
A year in Saint-Jean-Baptiste at a glance
Each month’s typical high and low, in °C.
What stands out about Saint-Jean-Baptiste’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Saint-Jean-Baptiste feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
149 frost days and 124 days above 20°C a year
Frost comes from October to April; in January almost every night freezes. On about 15 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 1,109 mm of rain and snow a year
August brings the most rain and snow; February, the least. About 145 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Precipitation and snowfall: Fleury, 34 km away (L'Acadie records no complete year of either).
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
Heating a home in Saint-Jean-Baptiste
93% 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-Jean-Baptiste’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jun, Jul, Aug and Sep.
Parks & trails →Bitter wind chill, under −20, comes on about 36 days a year.
Humid summer days, the humidex above 30, number about 50 a year.
For blizzards, floods and wildfire, turn to Saint-Jean-Baptiste’s hazards page.
Flood & hazards →ECCC’s normals location: L'Acadie
L'Acadie is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 30 km south-west |
| Station altitude | 44 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Precipitation from | Fleury, 34 km |
| Coldest reading, 1991–2020 | −32.5°C |
| Hottest reading, 1991–2020 | 36.1°C |
| Average wind | 11.4 km/h on average, most often from the west |
| Next-nearest location | Fleury, 34 km |
How Saint-Jean-Baptiste 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
The nearest places on a normals location of their own: those that share Saint-Jean-Baptiste’s would only repeat its figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Saint-Jean-Baptiste L'Acadie | 26.6°C | −13.6°C | 1,109 mm |
| Otterburn Park 6.7 km · L'Acadie | 26.6°C about the same | −13.6°C about the same | 1,109 mm |
| Mont-Saint-Hilaire 7.9 km · Fleury | 26.0°C 0.6°C cooler | −14.8°C 1.2°C colder | 1,109 mm |
| Saint-Damase 9.4 km · Granby | 25.6°C 1.0°C cooler | −13.4°C about the same | 1,226 mm |
Saint-Jean-Baptiste 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 | −4.3°C | −13.6°C | −9.0°C | 81 mm | 45 cm |
| February | −2.9°C | −12.7°C | −7.8°C | 61 mm | 43 cm |
| March | 2.6°C | −6.7°C | −2.1°C | 71 mm | 38 cm |
| April | 11.1°C | 0.7°C | 5.9°C | 96 mm | 13 cm |
| May | 19.5°C | 7.8°C | 13.7°C | 98 mm | under 1 cm |
| June | 24.2°C | 13.2°C | 18.7°C | 102 mm | 0 cm |
| July | 26.6°C | 15.5°C | 21.1°C | 106 mm | 0 cm |
| August | 25.3°C | 13.9°C | 19.6°C | 114 mm | 0 cm |
| September | 21.4°C | 9.7°C | 15.6°C | 97 mm | 0 cm |
| October | 13.6°C | 4.1°C | 8.9°C | 108 mm | 2 cm |
| November | 6.1°C | −1.7°C | 2.2°C | 90 mm | 12 cm |
| December | −0.7°C | −8.6°C | −4.7°C | 85 mm | 49 cm |
| Year | 11.9°C | 1.8°C | 6.8°C | 1,109 mm | 202 cm |
The month with the widest range: March, −28.7°C to 25.4°C
January is the least predictable month: about two years in three its average lands within 2.9°C of the normal, −9.0°C. August is the steadiest, within 1.0°C.
Where Saint-Jean-Baptiste’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, L'Acadie: the nearest of its locations with every month’s temperatures.
- 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: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- 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 Saint-Jean-Baptiste’s climate
How warm does Saint-Jean-Baptiste get in summer?
In July, the warmest month, the typical high is 26.6°C.
How cold does Saint-Jean-Baptiste get in winter?
Lows sink to −13.6°C on an average January night.
How much rain and snow does Saint-Jean-Baptiste get?
About 1,109 mm a year, rain and melted snow together. August is the wettest month (114 mm) and February the driest (61 mm).
Are these figures for Saint-Jean-Baptiste itself?
No: Saint-Jean-Baptiste has no normals location, so the figures come from L'Acadie, the nearest with 1991–2020 normals.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Saint-Jean-Baptiste →
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).