Shediac is wetter than 89% of Canadian towns: 1,203 mm of rain and snow a year
The depth of winter brings overnight lows near −13.3°C. Temperatures cover 38°C across the year, low to high. Warm coats and heating bills mark the months from October to April, when means dip under 10°C.
No ECCC station in Shediac has 1991–2020 normals; the page reads Moncton, 15 km south-west, instead.
A year in Shediac at a glance
Each month’s typical high and low, in °C.
What stands out about Shediac’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in New Brunswick beside it.
What a year in Shediac feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 170 days, 20°C on 98
Frost comes from October to May; in January almost every night freezes. Some 12 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
1,203 mm of precipitation in a typical year
October is the wettest month and August the driest. 9th wettest of 60 towns of 2,500+ in New Brunswick. About 129 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 310 cm in a normal year
From October to May snow is likely; January is the peak, at about 74 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Shediac
89% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Think of it as a year’s worth of daily shortfalls below 18°C, added up.
Living with Shediac’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
About 135 days a year pass without frost, from an average last frost of 19 May to a first of 2 October.
Plan time outside for Jun, Jul, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →Roughly 43 days a year feel colder than −20 in the wind.
Expect around 34 sticky days a year with the humidex above 30.
Ice storms, floods and heat waves are risks, not averages: they are on Shediac’s hazards page.
Flood & hazards →ECCC’s normals location: Moncton
ECCC builds the Moncton normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 15 km south-west |
| Station altitude | 71 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −31.4°C |
| Hottest reading, 1991–2020 | 35.6°C |
| Average wind | 16.7 km/h on average, most often from the south-west |
| Next-nearest location | Bouctouche, 27 km |
How Shediac 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 Shediac whose figures come from another normals location.
Shediac 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 | −3.5°C | −13.3°C | −8.4°C | 102 mm | 74 cm |
| February | −2.5°C | −12.7°C | −7.6°C | 88 mm | 65 cm |
| March | 2.2°C | −7.4°C | −2.6°C | 111 mm | 60 cm |
| April | 8.6°C | −1.5°C | 3.6°C | 94 mm | 29 cm |
| May | 16.1°C | 3.9°C | 10.0°C | 98 mm | 2 cm |
| June | 21.3°C | 9.2°C | 15.3°C | 95 mm | 0 cm |
| July | 25.1°C | 13.4°C | 19.3°C | 87 mm | 0 cm |
| August | 24.7°C | 12.7°C | 18.7°C | 77 mm | 0 cm |
| September | 20.2°C | 8.1°C | 14.2°C | 103 mm | 0 cm |
| October | 13.2°C | 2.9°C | 8.1°C | 124 mm | 2 cm |
| November | 6.3°C | −2.2°C | 2.1°C | 109 mm | 19 cm |
| December | 0.0°C | −8.7°C | −4.4°C | 115 mm | 59 cm |
| Year | 11.0°C | 0.4°C | 5.7°C | 1,203 mm | 310 cm |
From year to year, January moves by 2.5°C, more than any month, and August least
Each bar spans a month’s coldest and warmest readings over thirty years; March’s run from −24.5°C in 1992 to 26.1°C in 2012.
Where Shediac’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Moncton, the closest ECCC location with twelve months of temperature normals.
- Comparisons: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest location.
- 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 Shediac’s climate
How warm does Shediac get in summer?
Afternoons average 25.1°C in July, the warmest time of year.
How cold does Shediac get in winter?
Of all twelve months, January has the coldest nights, about −13.3°C.
How much rain and snow does Shediac get?
Around 1,203 mm a year in all, from 124 mm in October down to 77 mm in August.
How long does snow stay on the ground?
A layer of at least 1 cm stays down on about 120 days a year.
Are these figures for Shediac itself?
Not exactly. Shediac lacks a normals station, so Moncton supplies the figures.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Shediac →
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).