Photo: Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center · Public domainSouthampton is wetter than 86% of Canadian towns: 1,161 mm of rain and snow a year
In July the day’s top temperature is typically 25.3°C. Precipitation peaks in December and eases off in April. By January nights alone, it runs colder than 72% of Canadian towns. Expect about 180 frosty starts a year, days when the air falls to freezing.
These are not Southampton’s own readings: ECCC keeps no normals there, so the page uses Woodstock/Newbridge, 25 km north-west.
A year in Southampton at a glance
Each month’s typical high and low, in °C.
What stands out about Southampton’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in New Brunswick beside it.
What a year in Southampton feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 180 frosts and 101 warm days a year
Frost comes from September to May; in January almost every night freezes. On about 22 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
1,161 mm of precipitation in a typical year
Some 125 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
292 cm of snow in a typical year
The snow season runs October to April; January brings the most, about 69 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Southampton
90% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Warm days count for nothing; each colder day adds how far its mean sits below 18°C.
Living with Southampton’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Gardens get from about 18 May to 22 September without frost, around 126 days in all.
Afternoons of 17–27°C and nights of at least 8°C arrive in Jun, Jul and Aug.
Parks & trails →Bad-weather days, from blizzards to floods, get their own page for Southampton: the hazards page.
Flood & hazards →ECCC’s normals location: Woodstock/Newbridge
ECCC builds the Woodstock/Newbridge normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 25 km north-west |
| Station altitude | 153 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | Yes |
| Coldest reading, 1991–2020 | −43.5°C |
| Hottest reading, 1991–2020 | 37.0°C |
| Next-nearest location | Fredericton (Airport), 61 km |
How Southampton 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 Southampton’s own would show the same figures). No closer place has figures: this one lies 25 km from Southampton.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Southampton Woodstock/Newbridge | 25.3°C | −15.3°C | 1,161 mm |
| Queensbury 25 km · Fredericton (Airport) | 25.9°C 0.6°C warmer | −14.6°C 0.7°C milder | 1,022 mm |
Southampton weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.5°C | −15.3°C | −10.4°C | 101 mm | 69 cm |
| February | −3.6°C | −14.7°C | −9.2°C | 84 mm | 64 cm |
| March | 2.0°C | −8.4°C | −3.2°C | 93 mm | 53 cm |
| April | 9.3°C | −1.6°C | 3.9°C | 84 mm | 19 cm |
| May | 17.2°C | 4.6°C | 11.0°C | 92 mm | 1 cm |
| June | 22.3°C | 9.9°C | 16.2°C | 104 mm | 0 cm |
| July | 25.3°C | 13.4°C | 19.4°C | 100 mm | 0 cm |
| August | 24.6°C | 12.4°C | 18.6°C | 88 mm | 0 cm |
| September | 19.9°C | 7.9°C | 13.9°C | 93 mm | under 1 cm |
| October | 12.1°C | 2.2°C | 7.2°C | 105 mm | 3 cm |
| November | 4.7°C | −3.2°C | 0.7°C | 101 mm | 22 cm |
| December | −2.0°C | −10.1°C | −6.1°C | 115 mm | 61 cm |
| Year | 10.5°C | −0.3°C | 5.2°C | 1,161 mm | 292 cm |
March has run from −35.0°C to 26.0°C in thirty years
Year to year, February varies most (a standard deviation of 2.9°C around −9.2°C) and August least (1.0°C).
Where Southampton’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Woodstock/Newbridge, its nearest location with complete temperatures.
- Comparisons: a pool of Canadian towns and neighbourhoods of 2,500 or more, read alike; whole cities and reserves stay out of it.
- Not on this page: sunshine (no 1991–2020 normals exist for it) and any altitude adjustment, since there is no elevation for the town itself.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Southampton’s climate
How warm does Southampton get in summer?
Afternoons average 25.3°C in July, the warmest time of year.
How cold does Southampton get in winter?
Expect nights around −15.3°C in January; no month is colder.
How much rain and snow does Southampton get?
Rain and snow add up to about 1,161 mm of water a year; December brings the most (115 mm), April the least (84 mm).
How long does snow stay on the ground?
Snow covers the ground, 1 cm or more, on about 125 days a year.
Are these figures for Southampton itself?
They describe Woodstock/Newbridge, the nearest normals location, rather than Southampton itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Southampton →
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).