Photo: Veillg1 · CC BY-SA 4.0Sainte-Julie has colder winter nights than 75% of Canadian towns
Midsummer highs settle at about 26.6°C. Precipitation peaks in October and eases off in February. Rain and snow together come to more here than on 74% of Canadian towns. Expect about 161 frosty starts a year, days when the air falls to freezing.
These are not Sainte-Julie’s own readings: ECCC keeps no normals there, so the page uses L'Assomption, 26 km north.
A year in Sainte-Julie at a glance
Each month’s typical high and low, in °C.
What stands out about Sainte-Julie’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Sainte-Julie feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
161 frost days and 119 days above 20°C a year
The frost season runs October to May, and January freezes nearly every night. Deep cold, under −20°C, comes on about 24 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
1,041 mm of precipitation in a typical year
Some 122 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
L'Assomption publishes no full year of precipitation or snowfall, so these figures, and the snow below, come from Montréal Trudeau (Airport), 35 km away.
About 217 cm of snow a year
Snow falls from October to April, most of all in January (about 52 cm).
Snowfall by month
Centimetres
Heating a home in Sainte-Julie
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Warm days count for nothing; each colder day adds how far its mean sits below 18°C.
Living with Sainte-Julie’s climate
What the normals mean for a garden, a day outside and the depth of winter.
For long days outdoors, Jun, Jul, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →Winter brings about 44 days with a wind chill below −20.
A humidex above 30 marks about 49 days in a normal year.
The normals describe a typical year, not its worst days; the hazards page covers Sainte-Julie’s.
Flood & hazards →ECCC’s normals location: L'Assomption
L'Assomption is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 26 km north |
| Station altitude | 21 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Precipitation from | Montréal Trudeau (Airport), 35 km |
| Coldest reading, 1991–2020 | −40.0°C |
| Hottest reading, 1991–2020 | 36.2°C |
| Average wind | 10.0 km/h on average, most often from the south-west |
| Next-nearest location | L'Acadie, 33 km |
How Sainte-Julie 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 Sainte-Julie’s would only repeat its figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Sainte-Julie L'Assomption | 26.6°C | −16.0°C | 1,041 mm |
| Saint-Bruno-de-Montarville 6.8 km · L'Acadie | 26.6°C about the same | −13.6°C 2.4°C milder | 1,041 mm |
| Saint-Mathieu-de-Beloeil 6.9 km · L'Assomption | 26.6°C about the same | −16.0°C about the same | 1,109 mm |
Sainte-Julie weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.9°C | −16.0°C | −10.9°C | 86 mm | 52 cm |
| February | −4.0°C | −14.8°C | −9.4°C | 66 mm | 47 cm |
| March | 1.8°C | −8.3°C | −3.2°C | 77 mm | 37 cm |
| April | 10.8°C | 0.1°C | 5.5°C | 90 mm | 15 cm |
| May | 19.2°C | 7.2°C | 13.2°C | 86 mm | 0 cm |
| June | 24.3°C | 12.4°C | 18.4°C | 84 mm | 0 cm |
| July | 26.6°C | 14.8°C | 20.7°C | 91 mm | 0 cm |
| August | 25.5°C | 13.7°C | 19.6°C | 94 mm | 0 cm |
| September | 21.1°C | 9.2°C | 15.2°C | 89 mm | 0 cm |
| October | 13.0°C | 3.2°C | 8.1°C | 103 mm | 1 cm |
| November | 5.4°C | −2.7°C | 1.3°C | 84 mm | 16 cm |
| December | −1.9°C | −10.2°C | −6.1°C | 92 mm | 48 cm |
| Year | 11.3°C | 0.7°C | 6.0°C | 1,041 mm | 217 cm |
A January here can run warm or cold, its average moving by about 3.1°C; the steadiest month is June
Each bar spans a month’s coldest and warmest readings over thirty years; March’s run from −29.5°C in 1992 to 26.0°C in 2012.
Where Sainte-Julie’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for L'Assomption, its nearest location with complete temperatures.
- Other locations: ECCC blanks a month that fails its completeness rule, so the precipitation or snowfall here comes from the next location with all twelve months.
- 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-Julie’s climate
How warm does Sainte-Julie get in summer?
July is the warmest month, with average highs of 26.6°C.
How cold does Sainte-Julie get in winter?
The year’s coldest nights belong to January, at about −16.0°C.
How much rain and snow does Sainte-Julie get?
Rain and snow add up to about 1,041 mm of water a year; October brings the most (103 mm), February the least (66 mm).
Are these figures for Sainte-Julie itself?
They are the closest available: the normals for L'Assomption, since Sainte-Julie has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Sainte-Julie →
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).