Photo: Roncanada · CC BY-SA 4.0More rain and snow fall on L'Ancienne-Lorette than on 87% of Canadian towns: 1,173 mm a year
The coldest hours of a January night bottom out at −16.7°C on average. Its January nights bite harder than in 80% of Canadian towns. A year here swings 42°C from midwinter lows to midsummer highs. Plan for rain or snow on about 135 days a year, the days with 1 mm or more.
L'Ancienne-Lorette has no ECCC normals station of its own: every figure here comes from Québec Jean Lesage (Airport), 2.2 km west.
A year in L'Ancienne-Lorette at a glance
Each month’s typical high and low, in °C.
What stands out about L'Ancienne-Lorette’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in L'Ancienne-Lorette feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 170 days, 20°C on 100
The frost season runs October to May, and January freezes nearly every night. Deep cold, under −20°C, comes on about 27 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 1,173 mm of rain and snow a year
July is the wettest month and February the driest.
Rain and snow by month
Millimetres
Snowfall: about 299 cm in a normal year
Snow falls from October to April, most of all in December (about 77 cm).
Snowfall by month
Centimetres
Snowfall: Lauzon, 19 km away (Québec Jean Lesage (Airport) records no complete year of it).
Heating a home in L'Ancienne-Lorette
91% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Each day the mean sits under 18°C adds its shortfall; a year’s total is its heating degree days. Over a year, a home here needs more heating than 64% of Canadian towns.
Living with L'Ancienne-Lorette’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
A normal year gives the garden about 148 frost-free days, roughly 10 May to 5 October.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Jul, Aug and Sep.
Parks & trails →Winter brings about 56 days with a wind chill below −20.
The humidex tops 30 on about 34 days a year: muggy days to plan around.
The normals describe a typical year, not its worst days; the hazards page covers L'Ancienne-Lorette’s.
Flood & hazards →ECCC’s normals location: Québec Jean Lesage (Airport)
ECCC builds the Québec Jean Lesage (Airport) normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 2.2 km west |
| Station altitude | 74 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Lauzon, 19 km |
| Coldest reading, 1991–2020 | −36.7°C |
| Hottest reading, 1991–2020 | 34.2°C |
| Average wind | 13.2 km/h on average, most often from the west |
| Next-nearest location | Ste-Foy (U. Laval), 3.7 km |
How L'Ancienne-Lorette 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
Places around L'Ancienne-Lorette whose figures come from another normals location.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| L'Ancienne-Lorette Québec Jean Lesage (Airport) | 25.0°C | −16.7°C | 1,173 mm |
| L'Aéroport 3.1 km · Québec Jean Lesage (Airport) | 25.0°C about the same | −16.7°C about the same | 1,173 mm |
| Duberger—Les Saules 3.5 km · Ste-Foy (U. Laval) | 25.1°C about the same | −15.6°C 1.1°C milder | 1,173 mm |
L'Ancienne-Lorette 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 | −7.1°C | −16.7°C | −11.9°C | 87 mm | 62 cm |
| February | −5.0°C | −15.7°C | −10.4°C | 66 mm | 71 cm |
| March | 0.4°C | −9.3°C | −4.5°C | 78 mm | 51 cm |
| April | 8.3°C | −1.2°C | 3.5°C | 94 mm | 12 cm |
| May | 17.5°C | 5.6°C | 11.6°C | 92 mm | 0 cm |
| June | 22.5°C | 10.8°C | 16.7°C | 115 mm | 0 cm |
| July | 25.0°C | 13.9°C | 19.5°C | 119 mm | 0 cm |
| August | 24.0°C | 12.8°C | 18.4°C | 109 mm | 0 cm |
| September | 19.1°C | 8.3°C | 13.7°C | 111 mm | 0 cm |
| October | 11.3°C | 2.4°C | 6.8°C | 116 mm | 2 cm |
| November | 3.6°C | −3.8°C | −0.1°C | 91 mm | 24 cm |
| December | −3.3°C | −11.4°C | −7.3°C | 96 mm | 77 cm |
| Year | 9.7°C | −0.4°C | 4.7°C | 1,173 mm | 299 cm |
From year to year, January moves by 2.9°C, more than any month, and August least
The thirty-year records stretch furthest in January: a low of −36.7°C in 2015 and a high of 17.7°C in 1996.
Where L'Ancienne-Lorette’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the closest ECCC location with twelve months of temperature normals, Québec Jean Lesage (Airport), 1991–2020.
- 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: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- Not on this page: a sunshine figure (ECCC published none for 1991–2020) and any lapse-rate correction for height, as the town has no elevation here.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about L'Ancienne-Lorette’s climate
How warm does L'Ancienne-Lorette get in summer?
Midsummer means July, with afternoons near 25.0°C on a typical day.
How cold does L'Ancienne-Lorette get in winter?
Lows sink to −16.7°C on an average January night.
How much rain and snow does L'Ancienne-Lorette get?
A normal year brings 1,173 mm, snow included as water: July is wettest at 119 mm, February driest at 66 mm.
Are these figures for L'Ancienne-Lorette itself?
Not as such: Québec Jean Lesage (Airport) is the nearest normals location, and L'Ancienne-Lorette has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for L'Ancienne-Lorette →
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).