Photo: P199 · CC BY-SA 3.0Saint-Léonard is among the snowiest of Canadian towns: about 329 cm a year
On a normal January night the air cools to about −17.9°C. Precipitation is plentiful here, more than falls on 83% of Canadian towns. Some 42°C separates winter nights from summer afternoons. Homes need heating from October to April, the months averaging under 10°C.
Environment and Climate Change Canada’s 1991–2020 normals at its St. Leonard station, 7.0 km east.
A year in Saint-Léonard at a glance
Each month’s typical high and low, in °C.
What stands out about Saint-Léonard’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in New Brunswick beside it.
What a year in Saint-Léonard feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on 192 days, 20°C on 93
From September to May frost is routine, and in January it comes on almost every night. Some 33 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
Rain and melted snow: about 1,128 mm a year
July brings the most rain and snow; February, the least. Some 131 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 329 cm in a normal year
From October to May snow is likely; February is the peak, at about 70 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Saint-Léonard
88% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A day averaging 10 degrees under 18°C adds 10 to the total; warm days add nothing. Homes here need more heating than 82% of Canadian towns.
Living with Saint-Léonard’s climate
What the normals mean for a garden, a day outside and the depth of winter.
On average the last spring frost comes around 21 May and the first autumn frost around 15 September: about 116 frost-free days between.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Jul and Aug.
Parks & trails →Count on some 57 days a year when the wind makes it feel below −20.
Muggy heat with a humidex over 30 arrives on about 24 days a year.
Storms, floods and heat waves sit outside these normals; Saint-Léonard’s hazards page covers them.
Flood & hazards →ECCC’s normals location: St. Leonard
ECCC builds the St. Leonard normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 7.0 km east |
| Station altitude | 242 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −38.8°C |
| Hottest reading, 1991–2020 | 34.6°C |
| Average wind | 11.4 km/h on average, most often from the north-west |
| Next-nearest location | Edmundston, 41 km |
How Saint-Léonard compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in New Brunswick.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Saint-Léonard’s would only repeat its figures. The nearest places to Saint-Léonard with figures are 39–47 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Saint-Léonard | 24.2°C | −17.9°C | 1,128 mm |
| Edmundston 39 km · Edmundston | 25.0°C 0.8°C warmer | −19.1°C 1.2°C colder | 1,012 mm |
| Gordon 45 km · Aroostook | 25.7°C 1.5°C warmer | −17.5°C about the same | 1,149 mm |
Saint-Léonard 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 | −17.9°C | −12.5°C | 85 mm | 70 cm |
| February | −5.4°C | −16.8°C | −11.1°C | 73 mm | 70 cm |
| March | 0.6°C | −10.5°C | −4.9°C | 83 mm | 64 cm |
| April | 8.0°C | −2.9°C | 2.6°C | 83 mm | 26 cm |
| May | 16.6°C | 3.6°C | 10.1°C | 95 mm | 2 cm |
| June | 21.7°C | 8.6°C | 15.2°C | 108 mm | 0 cm |
| July | 24.2°C | 11.9°C | 18.1°C | 115 mm | 0 cm |
| August | 23.5°C | 10.6°C | 17.1°C | 102 mm | 0 cm |
| September | 18.8°C | 6.1°C | 12.5°C | 96 mm | 0 cm |
| October | 10.7°C | 0.6°C | 5.7°C | 103 mm | 7 cm |
| November | 3.6°C | −4.8°C | −0.6°C | 92 mm | 25 cm |
| December | −3.3°C | −12.3°C | −7.8°C | 93 mm | 66 cm |
| Year | 9.3°C | −2.0°C | 3.7°C | 1,128 mm | 329 cm |
The most changeable month: January, give or take 2.7°C; the steadiest, August
The thirty-year records stretch furthest in March: a low of −33.6°C in 2001 and a high of 24.1°C in 2012.
Where Saint-Léonard’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, St. Leonard: the nearest of its locations with every month’s temperatures.
- 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 Saint-Léonard’s climate
How warm does Saint-Léonard get in summer?
Afternoons average 24.2°C in July, the warmest time of year.
How cold does Saint-Léonard get in winter?
Expect nights around −17.9°C in January; no month is colder.
How much rain and snow does Saint-Léonard get?
1,128 mm a year counting snow as water. The wettest month is July (115 mm); the driest, February (73 mm).
How long does snow stay on the ground?
Snow covers the ground, 1 cm or more, on about 151 days a year.
Are these figures for Saint-Léonard itself?
Almost: ECCC’s St. Leonard location, which gives these figures, lies a short way outside Saint-Léonard.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Saint-Léonard →
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).