Photo: Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center · Public domainFrost comes to Saint-Joseph more often than to 90% of Canadian towns
On a normal July day the thermometer tops out near 25.0°C. Winter and summer sit 44°C apart. By precipitation alone, it ranks wetter than 68% of Canadian towns. Plan time outside for July and August, when highs sit at 24–25°C.
Measured at Edmundston, 3.6 km south: ECCC’s normals for 1991–2020.
A year in Saint-Joseph at a glance
Each month’s typical high and low, in °C.
What stands out about Saint-Joseph’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in New Brunswick beside it.
What a year in Saint-Joseph feels like
Each season’s and each month’s usual high and low, 1991–2020.
198 frost days and 98 days above 20°C a year
Frost comes from September to June; in January almost every night freezes. Some 40 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 1,012 mm a year
The most falls in July, the least in February. About 122 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
About 329 cm of snow a year
From October to May snow is likely; February is the peak, at about 70 cm.
Snowfall by month
Centimetres
Edmundston publishes no full year of snowfall, so these figures come from St. Leonard, 50 km away.
Heating a home in Saint-Joseph
88% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Behind the figure: the degrees each day’s mean falls under 18°C, summed for the year. That means homes here need more heating than 82% of Canadian towns.
Living with Saint-Joseph’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The outdoor season by the averages is Jul and Aug, with 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-Joseph’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: Edmundston
ECCC builds the Edmundston normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 3.6 km south |
| Station altitude | 154 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | St. Leonard, 50 km |
| Coldest reading, 1991–2020 | −43.6°C |
| Hottest reading, 1991–2020 | 36.0°C |
| Next-nearest location | St. Leonard, 50 km |
How Saint-Joseph 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 New Brunswick.
Nearby towns’ climate
Places around Saint-Joseph whose figures come from another normals location. The nearest places to Saint-Joseph with figures are 44–68 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Saint-Joseph Edmundston | 25.0°C | −19.1°C | 1,012 mm |
| Saint-Léonard 44 km · St. Leonard | 24.2°C 0.8°C cooler | −17.9°C 1.2°C milder | 1,128 mm |
| Saint-Louis-du-Ha! Ha! 56 km · Rivière-du-Loup/St-Antonin | 22.5°C 2.5°C cooler | −15.5°C 3.6°C milder | 1,012 mm |
Saint-Joseph weather by month
Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −6.9°C | −19.1°C | −13.0°C | 71 mm | 70 cm |
| February | −4.8°C | −18.7°C | −11.8°C | 63 mm | 70 cm |
| March | 1.2°C | −11.9°C | −5.5°C | 64 mm | 64 cm |
| April | 8.5°C | −3.6°C | 2.4°C | 67 mm | 26 cm |
| May | 17.2°C | 2.9°C | 10.1°C | 85 mm | 2 cm |
| June | 22.1°C | 7.8°C | 15.0°C | 101 mm | 0 cm |
| July | 25.0°C | 11.0°C | 18.1°C | 107 mm | 0 cm |
| August | 24.1°C | 9.8°C | 17.0°C | 86 mm | 0 cm |
| September | 19.2°C | 5.3°C | 12.3°C | 89 mm | 0 cm |
| October | 11.5°C | 0.2°C | 5.8°C | 103 mm | 7 cm |
| November | 4.0°C | −4.9°C | −0.5°C | 87 mm | 25 cm |
| December | −2.8°C | −12.5°C | −7.7°C | 89 mm | 66 cm |
| Year | 9.9°C | −2.8°C | 3.5°C | 1,012 mm | 329 cm |
The most changeable month: January, give or take 2.7°C; the steadiest, July
The thirty-year records stretch furthest in March: a low of −36.2°C in 2008 and a high of 25.0°C in 2012.
Where Saint-Joseph’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the closest ECCC location with twelve months of temperature normals, Edmundston, 1991–2020.
- Other locations: a location missing months of precipitation or snow is filled from the nearest that has them all, never mixed month by month.
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- Not on this page: sunshine, absent from every 1991–2020 location, and an altitude correction, for want of the town’s own elevation.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Saint-Joseph’s climate
How warm does Saint-Joseph get in summer?
In July, the warmest month, the typical high is 25.0°C.
How cold does Saint-Joseph get in winter?
Lows sink to −19.1°C on an average January night.
How much rain and snow does Saint-Joseph get?
July is the wettest month at 107 mm and February the driest at 63 mm, for 1,012 mm over the year.
Are these figures for Saint-Joseph itself?
Yes: ECCC’s 1991–2020 normals for Edmundston, which is in Saint-Joseph.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Saint-Joseph →
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).