Photo: Gabriel Picard · CC BY-SA 4.0Saint-Janvier-de-Joly is wetter than 84% of Canadian towns: 1,138 mm of rain and snow a year
January nights here settle around −16.9°C. Of all months, July brings the most precipitation and February the least. Winter nights are cold: in January they are colder than in 81% of Canadian towns. Long walks are most pleasant from June to September, when afternoons reach 20–26°C.
The nearest ECCC normals location to Saint-Janvier-de-Joly is Fortierville, 28 km west, and every figure on this page is its.
A year in Saint-Janvier-de-Joly at a glance
Each month’s typical high and low, in °C.
What stands out about Saint-Janvier-de-Joly’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Saint-Janvier-de-Joly feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 175 frosts and 107 warm days a year
Frost comes from September to May; in January almost every night freezes. Some 29 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
About 1,138 mm of rain and snow a year
About 141 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 253 cm of snow a year
The snow season runs October to April; December brings the most, about 59 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Saint-Janvier-de-Joly
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. In heating terms, homes need more heating than 61% of Canadian towns.
Living with Saint-Janvier-de-Joly’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
For long days outdoors, Jun, Jul, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →A normal year has no blizzard, flood or heat wave in it; Saint-Janvier-de-Joly’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: Fortierville
Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for Fortierville.
| Distance from the town | 28 km west |
| Station altitude | 53 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −41.0°C |
| Hottest reading, 1991–2020 | 35.9°C |
| Next-nearest location | Québec Jean Lesage (Airport), 41 km |
How Saint-Janvier-de-Joly 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 Saint-Janvier-de-Joly’s own would show the same figures). No closer places have figures: these lie 8–21 km from Saint-Janvier-de-Joly.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Saint-Janvier-de-Joly Fortierville | 25.5°C | −16.9°C | 1,138 mm |
| Saint-Flavien 8.2 km · Québec Jean Lesage (Airport) | 25.0°C 0.5°C cooler | −16.7°C about the same | 1,173 mm |
| Saint-Agapit 20 km · Beauséjour | 25.5°C about the same | −16.8°C about the same | 1,299 mm |
Saint-Janvier-de-Joly weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −6.9°C | −16.9°C | −12.0°C | 81 mm | 56 cm |
| February | −4.9°C | −15.9°C | −10.5°C | 69 mm | 55 cm |
| March | 1.2°C | −9.0°C | −4.0°C | 79 mm | 47 cm |
| April | 9.5°C | −1.0°C | 4.4°C | 94 mm | 15 cm |
| May | 18.4°C | 5.8°C | 12.1°C | 92 mm | 1 cm |
| June | 23.3°C | 11.1°C | 17.2°C | 108 mm | 0 cm |
| July | 25.5°C | 14.0°C | 19.6°C | 133 mm | 0 cm |
| August | 24.5°C | 12.9°C | 18.6°C | 103 mm | 0 cm |
| September | 20.0°C | 8.3°C | 14.2°C | 95 mm | 0 cm |
| October | 12.1°C | 2.5°C | 7.4°C | 105 mm | 3 cm |
| November | 4.6°C | −3.2°C | 0.9°C | 82 mm | 19 cm |
| December | −2.9°C | −10.9°C | −6.9°C | 100 mm | 59 cm |
| Year | 10.4°C | −0.2°C | 5.1°C | 1,138 mm | 253 cm |
The most changeable month: January, give or take 3.2°C; the steadiest, June
Over 1991–2020, March saw both −32.0°C (1995) and 23.5°C (2012), the widest span of any month.
Where Saint-Janvier-de-Joly’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, Fortierville: the nearest of its locations with every month’s temperatures.
- Comparisons: a pool of Canadian towns and neighbourhoods of 2,500 or more, read alike; whole cities and reserves stay out of it.
- 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 Saint-Janvier-de-Joly’s climate
How warm does Saint-Janvier-de-Joly get in summer?
In July, the warmest month, the typical high is 25.5°C.
How cold does Saint-Janvier-de-Joly get in winter?
On a normal January night the air drops to −16.9°C, the coldest of the year.
How much rain and snow does Saint-Janvier-de-Joly get?
The yearly total is about 1,138 mm. July gets 133 mm, the most of any month; February gets 69 mm, the least.
How long does snow stay on the ground?
About 134 days a year count as snow-covered, with 1 cm or more.
Are these figures for Saint-Janvier-de-Joly itself?
Not exactly. Saint-Janvier-de-Joly lacks a normals station, so Fortierville supplies the figures.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Saint-Janvier-de-Joly →
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).