Photo: Quintin Soloviev · CC BY 4.0No extremes in Fredericton: its weather tracks the middle of Canadian towns
A typical July afternoon reaches 25.9°C, a January night drops to −14.6°C, and 1,022 mm of rain and snow falls in a year. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 41°C apart. It is a wet place: more rain and snow fall here than on 70% of Canadian towns. The outdoor season runs from June to August, with highs of 23–26°C.
Environment and Climate Change Canada’s 1991–2020 normals at its Fredericton (Airport) station, 14 km south-east.
A year in Fredericton at a glance
Each month’s typical high and low, in °C.
What stands out about Fredericton’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in New Brunswick beside it.
What a year in Fredericton feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 172 frosts and 108 warm days a year
The frost season runs September to May, and January freezes nearly every night. Some 17 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
About 1,022 mm of rain and snow a year
October brings the most rain and snow; February, the least. Some 108 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 241 cm of snow a year
The snow season runs November to April; January brings the most, about 64 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Fredericton
90% 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 Fredericton’s climate
What the normals mean for a garden, a day outside and the depth of winter.
The growing season between frosts lasts about 135 days, roughly 14 May to 27 September.
The outdoor season by the averages is Jun, Jul and Aug, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →Expect around 41 days a year when the wind chill sinks below −20.
On some 37 days a year the humidex climbs past 30.
What averages leave out, the floods and ice storms, is on Fredericton’s hazards page.
Flood & hazards →ECCC’s normals location: Fredericton (Airport)
Fredericton (Airport) is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 14 km south-east |
| Station altitude | 21 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −34.5°C |
| Hottest reading, 1991–2020 | 36.4°C |
| Average wind | 12.2 km/h on average, most often from the south |
| Next-nearest location | Woodstock/Newbridge, 73 km |
How Fredericton 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
The nearest places on a normals location of their own: those that share Fredericton’s would only repeat its figures. Distances here run 46–66 km: that is how far the nearest places with figures are from Fredericton.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Fredericton Fredericton (Airport) | 25.9°C | −14.6°C | 1,022 mm |
| Nackawic 46 km · Woodstock/Newbridge | 25.3°C 0.6°C cooler | −15.3°C 0.7°C colder | 1,161 mm |
| Chipman 65 km · Doaktown | 25.8°C about the same | −16.0°C 1.4°C colder | 1,210 mm |
| Greenwich 66 km · Saint John | 23.0°C 2.9°C cooler | −13.2°C 1.4°C milder | 1,271 mm |
Fredericton weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −3.8°C | −14.6°C | −9.2°C | 86 mm | 64 cm |
| February | −2.3°C | −13.9°C | −8.1°C | 63 mm | 49 cm |
| March | 3.3°C | −7.8°C | −2.1°C | 88 mm | 46 cm |
| April | 10.2°C | −1.1°C | 4.6°C | 77 mm | 17 cm |
| May | 17.6°C | 4.7°C | 11.2°C | 79 mm | 1 cm |
| June | 22.8°C | 9.9°C | 16.4°C | 83 mm | 0 cm |
| July | 25.9°C | 13.4°C | 19.7°C | 94 mm | 0 cm |
| August | 25.3°C | 12.3°C | 18.9°C | 66 mm | 0 cm |
| September | 20.7°C | 7.6°C | 14.2°C | 90 mm | 0 cm |
| October | 13.5°C | 1.9°C | 7.7°C | 106 mm | 1 cm |
| November | 6.3°C | −2.9°C | 1.7°C | 97 mm | 13 cm |
| December | −0.3°C | −9.6°C | −5.0°C | 93 mm | 52 cm |
| Year | 11.6°C | 0.0°C | 5.8°C | 1,022 mm | 241 cm |
The month with the widest range: March, −27.4°C to 27.2°C
Two years in three, January’s average falls within 2.5°C of its normal of −9.2°C; August keeps to within 0.9°C.
Where Fredericton’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Fredericton (Airport), the nearest location with a full year of 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, 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 Fredericton’s climate
How warm does Fredericton get in summer?
Of all twelve months, July has the warmest afternoons, about 25.9°C.
How cold does Fredericton get in winter?
Expect nights around −14.6°C in January; no month is colder.
How much rain and snow does Fredericton get?
Rain and snow, with snow counted as water, total 1,022 mm a year; October leads with 106 mm and February trails with 63 mm.
How long does snow stay on the ground?
There is 1 cm of snow or more on the ground on roughly 109 days a year.
Are these figures for Fredericton itself?
Almost: ECCC’s Fredericton (Airport) location, which gives these figures, lies a short way outside Fredericton.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Fredericton →
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).