More rain and snow fall on Moncton than on 89% of Canadian towns: 1,203 mm a year
On a normal July day the thermometer tops out near 25.1°C. The seasons are far apart: from a winter night to a summer afternoon the average spans 38°C. Garden chairs stay out from June to September, the months with highs of 20–25°C.
Environment and Climate Change Canada’s 1991–2020 normals at its Moncton station, 15 km south-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
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
170 frost days and 98 days above 20°C a year
The frost season runs October to May, and January freezes nearly every night. Deep cold, under −20°C, comes on about 12 nights a year.
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
The most falls in October, the least in August. 9th wettest of 60 towns of 2,500+ in New Brunswick. On about 129 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 310 cm of snow a year
Expect snow from October to May, with about 74 cm in January, the snowiest month.
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.
One degree below 18°C for one day makes one heating degree day; the year’s days are added together.
Living with Moncton’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Tender plants are usually safe from around 19 May until frost returns near 2 October: about 135 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 →Plan for about 43 days a year with a wind chill below −20.
The air feels heavier than 30 on the humidex for about 34 days a year.
What averages leave out, the floods and ice storms, is on Moncton’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-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, 29 km |
How Moncton 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
Nearby places read from a different ECCC location (places on Moncton’s own would show the same figures). The nearest place to Moncton with figures is 22 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Moncton | 25.1°C | −13.3°C | 1,203 mm |
| Saint-Antoine 22 km · Bouctouche | 25.1°C about the same | −13.2°C about the same | 1,002 mm |
Moncton 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 |
In March, anything from −24.5°C to 26.1°C
Two years in three, January’s average falls within 2.5°C of its normal of −8.4°C; August keeps to within 1.0°C.
Where Moncton’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Moncton, its nearest location with complete temperatures.
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- 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 Moncton’s climate
How warm does Moncton get in summer?
Highs reach 25.1°C on an average July day; no month is warmer.
How cold does Moncton get in winter?
Expect nights around −13.3°C in January; no month is colder.
How much rain and snow does Moncton get?
About 1,203 mm a year, rain and melted snow together. October is the wettest month (124 mm) and August the driest (77 mm).
How long does snow stay on the ground?
There is 1 cm of snow or more on the ground on roughly 120 days a year.
Are these figures for Moncton itself?
Nearly: Moncton, the location behind them, sits just beyond Moncton’s boundary.
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).