Photo: Verne Equinox · CC BY 3.0Precipitation in Petitcodiac tops that of 84% of Canadian towns: 1,152 mm a year
On a normal January night the air cools to about −13.2°C. Of all months, January brings the most precipitation and August the least. The furnace earns its keep from October to April, the months that average under 10°C.
Borrowed figures: Petitcodiac has no normals station, so these come from Sussex/Four Corners, 37 km south-west.
A year in Petitcodiac at a glance
Each month’s typical high and low, in °C.
What stands out about Petitcodiac’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in New Brunswick beside it.
What a year in Petitcodiac feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 166 frosts and 108 warm days a year
The frost season runs September to May, and January freezes nearly every night. 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
Rain and melted snow: about 1,152 mm a year
About 129 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 248 cm of snow a year
From November to May snow is likely; January is the peak, at about 66 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Petitcodiac
90% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Degree days add up how far each day’s mean temperature falls below 18°C over a year.
Living with Petitcodiac’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Tender plants are usually safe from around 20 May until frost returns near 26 September: about 128 days.
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 →The normals describe a typical year, not its worst days; the hazards page covers Petitcodiac’s.
Flood & hazards →ECCC’s normals location: Sussex/Four Corners
Sussex/Four Corners is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 37 km south-west |
| Station altitude | 21 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −34.0°C |
| Hottest reading, 1991–2020 | 35.0°C |
| Next-nearest location | Alma/Fundy Park, 41 km |
How Petitcodiac 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 New Brunswick.
Nearby towns’ climate
Places around Petitcodiac whose figures come from another normals location.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Petitcodiac Sussex/Four Corners | 25.7°C | −13.2°C | 1,152 mm |
| Salisbury 7.6 km · Moncton | 25.1°C 0.6°C cooler | −13.3°C about the same | 1,203 mm |
| Elgin 14 km · Alma/Fundy Park | 22.4°C 3.3°C cooler | −11.8°C 1.4°C milder | 1,529 mm |
| Havelock 17 km · Sussex/Four Corners | 25.7°C about the same | −13.2°C about the same | 1,152 mm |
Petitcodiac 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 | −2.5°C | −13.2°C | −7.9°C | 116 mm | 66 cm |
| February | −0.9°C | −12.1°C | −6.5°C | 82 mm | 46 cm |
| March | 3.4°C | −6.6°C | −1.6°C | 109 mm | 51 cm |
| April | 10.2°C | −0.5°C | 4.9°C | 81 mm | 19 cm |
| May | 17.3°C | 4.8°C | 11.1°C | 90 mm | 2 cm |
| June | 22.6°C | 10.1°C | 16.4°C | 90 mm | 0 cm |
| July | 25.7°C | 13.7°C | 19.7°C | 71 mm | 0 cm |
| August | 25.3°C | 12.8°C | 19.1°C | 64 mm | 0 cm |
| September | 20.8°C | 8.6°C | 14.7°C | 110 mm | 0 cm |
| October | 13.8°C | 3.1°C | 8.5°C | 113 mm | under 1 cm |
| November | 7.1°C | −1.6°C | 2.8°C | 112 mm | 14 cm |
| December | 1.0°C | −8.3°C | −3.6°C | 113 mm | 50 cm |
| Year | 12.0°C | 0.9°C | 6.5°C | 1,152 mm | 248 cm |
A January here can run warm or cold, its average moving by about 2.5°C; the steadiest month is August
Each bar spans a month’s coldest and warmest readings over thirty years; March’s run from −27.0°C in 1995 to 24.5°C in 1998.
Where Petitcodiac’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Sussex/Four Corners from ECCC’s climate data site, the nearest location with every month of temperature.
- Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- 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 Petitcodiac’s climate
How warm does Petitcodiac get in summer?
July is the warmest month, with average highs of 25.7°C.
How cold does Petitcodiac get in winter?
Lows sink to −13.2°C on an average January night.
How much rain and snow does Petitcodiac get?
Over twelve months, rain and melted snow come to 1,152 mm; the range runs from 64 mm in August to 116 mm in January.
Are these figures for Petitcodiac itself?
No, they come from Sussex/Four Corners; ECCC keeps no 1991–2020 normals in Petitcodiac itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Petitcodiac →
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).