Photo: Quintin Soloviev · CC BY 4.0Wet weather: 1,203 mm of rain and snow a year falls on Moncton, more than on 89% of Canadian towns
The warmest part of a July day comes in at 25.1°C on average. Expect the most rain and snow in October and the least in August. About 129 days a year bring 1 mm of precipitation or more.
Environment and Climate Change Canada’s 1991–2020 normals at its Moncton station, 10 km east.
A year in Moncton at a glance
Each month’s typical high and low, in °C.
What stands out about Moncton’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in New Brunswick beside it.
What a year in Moncton 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 98
The frost season runs October to May, and January freezes nearly every night. On about 12 nights a year the air falls below −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 1,203 mm of rain and snow a year
9th wettest of 60 towns of 2,500+ in New Brunswick.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 310 cm of snow a year
Snow falls from October to May, most of all in January (about 74 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Moncton
89% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
The total grows by a degree for every degree a day’s mean sits under 18°C.
Living with Moncton’s climate
What the normals mean for a garden, a day outside and the depth of winter.
From about 19 May to 2 October the garden is usually clear of frost, some 135 days.
The outdoor season by the averages is Jun, Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →The wind chill passes −20 on about 43 days in a normal year.
Roughly 34 days a year feel hotter than 30 once humidity is counted.
Bad-weather days, from blizzards to floods, get their own page for Moncton: the hazards page.
Flood & hazards →ECCC’s normals location: Moncton
Behind the 1991–2020 normals for Moncton are 2 stations, which ECCC combines into one record.
| Distance from the town | 10 km east |
| 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, 36 km |
How Moncton 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
Nearby places read from a different ECCC location (places on Moncton’s own would show the same figures). Distances here run 29–34 km: that is how far the nearest places with figures are from Moncton.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Moncton | 25.1°C | −13.3°C | 1,203 mm |
| Dundas 29 km · Bouctouche | 25.1°C about the same | −13.2°C about the same | 1,002 mm |
| Dorchester 32 km · Nappan | 24.3°C 0.8°C cooler | −11.7°C 1.6°C milder | 1,161 mm |
| Petitcodiac 34 km · Sussex/Four Corners | 25.7°C 0.6°C warmer | −13.2°C about the same | 1,152 mm |
Moncton 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 | −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
The thirty-year records stretch furthest in March: a low of −24.5°C in 1992 and a high of 26.1°C in 2012.
Where Moncton’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: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- Not on this page: hours of sunshine, missing from the 1991–2020 normals, and a height correction: the town has no elevation on file.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Moncton’s climate
How warm does Moncton get in summer?
The year’s warmest days come in July, with highs averaging 25.1°C.
How cold does Moncton get in winter?
Of all twelve months, January has the coldest nights, about −13.3°C.
How much rain and snow does Moncton get?
Count on roughly 1,203 mm a year, heaviest in October (124 mm) and lightest in August (77 mm).
How long does snow stay on the ground?
Count on about 120 days of snow cover a year, 1 cm or deeper.
Are these figures for Moncton itself?
Almost: ECCC’s Moncton location, which gives these figures, lies a short way outside Moncton.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Moncton →
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).