Sainte-Croix is wetter than 84% of Canadian towns: 1,138 mm of rain and snow a year
The depth of winter brings overnight lows near −16.9°C. Winter and summer sit 42°C apart. By January nights alone, it runs colder than 81% of Canadian towns. Homes need heating from October to April, the months averaging under 10°C.
No ECCC station in Sainte-Croix has 1991–2020 normals; the page reads Fortierville, 29 km south-west, instead.
A year in Sainte-Croix at a glance
Each month’s typical high and low, in °C.
What stands out about Sainte-Croix’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Sainte-Croix feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 175 frosts and 107 warm days a year
Frost comes from September to May; in January almost every night freezes. On about 29 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
1,138 mm of precipitation in a typical year
The most falls in July, the least in February. About 141 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 253 cm in a normal year
Snow falls from October to April, most of all in December (about 59 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Sainte-Croix
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. Over a year, a home here needs more heating than 61% of Canadian towns.
Living with Sainte-Croix’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 →For blizzards, floods and wildfire, turn to Sainte-Croix’s hazards page.
Flood & hazards →ECCC’s normals location: Fortierville
The page’s figures are ECCC’s 1991–2020 normals for Fortierville, one of its 450 normals locations.
| Distance from the town | 29 km south-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), 34 km |
How Sainte-Croix 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
The nearest places on a normals location of their own: those that share Sainte-Croix’s would only repeat its figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Sainte-Croix Fortierville | 25.5°C | −16.9°C | 1,138 mm |
| Donnacona 6.6 km · Québec Jean Lesage (Airport) | 25.0°C 0.5°C cooler | −16.7°C about the same | 1,173 mm |
| Saint-Édouard-de-Lotbinière 8.6 km · Fortierville | 25.5°C about the same | −16.9°C about the same | 1,138 mm |
Sainte-Croix 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 | −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 Sainte-Croix’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Fortierville, the closest ECCC location with twelve months of temperature normals.
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- 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 Sainte-Croix’s climate
How warm does Sainte-Croix get in summer?
At its warmest, in July, the normal high is 25.5°C.
How cold does Sainte-Croix get in winter?
Midwinter means January, when a typical night reaches −16.9°C.
How much rain and snow does Sainte-Croix get?
Around 1,138 mm a year in all, from 133 mm in July down to 69 mm in February.
How long does snow stay on the ground?
Roughly 134 days a year start with snow cover of 1 cm or more.
Are these figures for Sainte-Croix itself?
Not exactly. Sainte-Croix 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 Sainte-Croix →
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).