More rain and snow fall on Saint Stephen than on 83% of Canadian towns: 1,125 mm a year
Peak summer warmth arrives in July, with afternoons near 25.7°C. A year here swings 39°C from midwinter lows to midsummer highs. Plan for rain or snow on about 109 days a year, the days with 1 mm or more.
Environment and Climate Change Canada’s 1991–2020 normals, measured at St. Stephen, 4.8 km south-east.
A year in Saint Stephen at a glance
Each month’s typical high and low, in °C.
What stands out about Saint Stephen’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in New Brunswick beside it.
What a year in Saint Stephen feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
172 frost days a year
From September to May frost is routine, and in January it comes on almost every night. On about 16 nights a year the air falls below −20°C.
Frost days by month
Average days at 0°C or below
About 1,125 mm of rain and snow a year
October brings the most rain and snow; August, the least.
Rain and snow by month
Millimetres
ECCC’s St. Stephen normals leave precipitation out; the figures here come from Point Lepreau, 69 km away.
241 cm of snow in a typical year
Expect snow from November to April, with about 64 cm in January, the snowiest month.
Snowfall by month
Centimetres
ECCC’s St. Stephen normals leave snowfall out; the figures here come from Fredericton (Airport), 93 km away.
Living with Saint Stephen’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
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 →Count on some 26 days a year when the wind makes it feel below −20.
A humidex above 30 marks about 37 days in a normal year.
Bad-weather days, from blizzards to floods, get their own page for Saint Stephen: the hazards page.
Flood & hazards →ECCC’s normals location: St. Stephen
ECCC builds the St. Stephen normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 4.8 km south-east |
| Station altitude | 26 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Precipitation from | Point Lepreau, 69 km |
| Snowfall from | Fredericton (Airport), 93 km |
| Coldest reading, 1991–2020 | −33.0°C |
| Hottest reading, 1991–2020 | 35.2°C |
| Average wind | 7.5 km/h on average, most often from the west |
| Next-nearest location | Point Lepreau, 69 km |
How Saint Stephen 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
The nearest places on a normals location of their own: those that share Saint Stephen’s would only repeat its figures. Saint Stephen has no close neighbour with figures; the nearest is 39 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Saint Stephen | 25.7°C | −13.6°C | 1,125 mm |
| St. George 39 km · Point Lepreau | 19.9°C 5.8°C cooler | −9.5°C 4.1°C milder | 1,125 mm |
Saint Stephen 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 | −2.1°C | −13.6°C | −8.0°C | 82 mm | 64 cm |
| February | −0.5°C | −12.7°C | −6.6°C | 74 mm | 49 cm |
| March | 4.0°C | −7.3°C | −1.7°C | 94 mm | 46 cm |
| April | 10.7°C | −1.0°C | 4.8°C | 100 mm | 17 cm |
| May | 17.4°C | 4.2°C | 10.9°C | 96 mm | 1 cm |
| June | 22.1°C | 9.1°C | 15.6°C | 109 mm | 0 cm |
| July | 25.7°C | 12.7°C | 19.2°C | 76 mm | 0 cm |
| August | 25.3°C | 11.9°C | 18.6°C | 65 mm | 0 cm |
| September | 21.3°C | 7.5°C | 14.4°C | 99 mm | 0 cm |
| October | 14.0°C | 2.1°C | 8.1°C | 120 mm | 1 cm |
| November | 7.2°C | −2.6°C | 2.3°C | 103 mm | 13 cm |
| December | 1.2°C | −8.9°C | −3.9°C | 108 mm | 52 cm |
| Year | 12.2°C | 0.1°C | 6.2°C | 1,125 mm | 241 cm |
Two years in three, February’s average lands within 2.7°C of normal, against the steadier August
The thirty-year records stretch furthest in March: a low of −27.8°C in 2001 and a high of 28.6°C in 2012.
Where Saint Stephen’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for St. Stephen from ECCC’s climate data site, the nearest location with every month of temperature.
- Other locations: a location missing months of precipitation or snow is filled from the nearest that has them all, never mixed month by month.
- Comparisons: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- Not on this page: a sunshine figure (ECCC published none for 1991–2020) and any lapse-rate correction for height, as the town has no elevation here.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Saint Stephen’s climate
How warm does Saint Stephen get in summer?
Afternoons average 25.7°C in July, the warmest time of year.
How cold does Saint Stephen get in winter?
January nights average −13.6°C, the coldest of the year.
How much rain and snow does Saint Stephen get?
Some 1,125 mm falls in a year. Most of it comes in October (120 mm), the least in August (65 mm).
Are these figures for Saint Stephen itself?
Yes: ECCC’s normals station is inside Saint Stephen itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Saint Stephen →
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).