Photo: Greg Schechter from San Francisco, USA · CC BY 2.0January in Norfolk-Treherne bites harder than in 89% of Canadian towns
Peak summer warmth arrives in July, with afternoons near 25.9°C. From frozen January to warm July, readings climb 46°C. Its yearly rain and snow fall short of 75% of Canadian towns. Wet days, with 1 mm of rain or snow or more, come about 78 times a year.
The nearest ECCC normals location to Norfolk-Treherne is Cypress River, 29 km west, and every figure on this page is its.
A year in Norfolk-Treherne at a glance
Each month’s typical high and low, in °C.
What stands out about Norfolk-Treherne’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Manitoba beside it.
What a year in Norfolk-Treherne feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 194 frosts and 111 warm days a year
The frost season runs September to May, and December freezes nearly every night. On about 46 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
517 mm of precipitation in a typical year
June is the wettest month and February the driest.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
137 cm of snow in a typical year
Snow falls from October to May, most of all in December (about 34 cm). 9th snowiest of 188 towns of 2,500+ in Manitoba.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Norfolk-Treherne
91% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Think of it as a year’s worth of daily shortfalls below 18°C, added up. That means homes here need more heating than 83% of Canadian towns.
Living with Norfolk-Treherne’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The frost-free stretch runs from about 19 May to about 21 September, some 124 days in a normal year.
Afternoons of 17–27°C and nights of at least 8°C arrive in Jun, Jul and Aug.
Parks & trails →Thirty years of averages say little about one bad storm; Norfolk-Treherne’s hazards page does.
Flood & hazards →ECCC’s normals location: Cypress River
ECCC builds the Cypress River normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 29 km west |
| Station altitude | 374 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −41.2°C |
| Hottest reading, 1991–2020 | 38.2°C |
| Next-nearest location | Portage Southport, 43 km |
How Norfolk-Treherne 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 Manitoba.
Nearby towns’ climate
Places around Norfolk-Treherne whose figures come from another normals location. The nearest places to Norfolk-Treherne with figures are 29–45 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Norfolk-Treherne Cypress River | 25.9°C | −20.1°C | 517 mm |
| Long Plain 6 29 km · Portage Southport | 25.4°C 0.5°C cooler | −19.1°C 1.0°C milder | 493 mm |
| Pembina 45 km · Morden | 25.6°C about the same | −18.5°C 1.6°C milder | 528 mm |
Norfolk-Treherne 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 | −10.1°C | −20.1°C | −15.1°C | 20 mm | 23 cm |
| February | −7.4°C | −18.1°C | −12.8°C | 17 mm | 18 cm |
| March | 0.1°C | −10.4°C | −5.1°C | 21 mm | 16 cm |
| April | 10.5°C | −2.1°C | 4.2°C | 27 mm | 11 cm |
| May | 18.2°C | 4.6°C | 11.4°C | 70 mm | 6 cm |
| June | 23.2°C | 10.7°C | 17.0°C | 91 mm | 0 cm |
| July | 25.9°C | 13.1°C | 19.5°C | 75 mm | 0 cm |
| August | 25.7°C | 11.7°C | 18.7°C | 61 mm | 0 cm |
| September | 20.2°C | 7.0°C | 13.6°C | 45 mm | under 1 cm |
| October | 10.8°C | −0.1°C | 5.4°C | 38 mm | 8 cm |
| November | 0.4°C | −8.6°C | −4.1°C | 25 mm | 22 cm |
| December | −7.4°C | −16.5°C | −12.0°C | 27 mm | 34 cm |
| Year | 9.2°C | −2.4°C | 3.4°C | 517 mm | 137 cm |
February strays furthest from its normal year to year, by 4.2°C; June the least
Each bar spans a month’s coldest and warmest readings over thirty years; March’s run from −36.0°C in 1998 to 24.0°C in 2012.
Where Norfolk-Treherne’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, Cypress River: the nearest of its locations with every month’s temperatures.
- Comparisons: every Canadian town and neighbourhood of 2,500 or more, each read from its own nearest location; city totals and reserves are left out.
- 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 Norfolk-Treherne’s climate
How warm does Norfolk-Treherne get in summer?
July is the warmest month, with average highs of 25.9°C.
How cold does Norfolk-Treherne get in winter?
Overnight lows average −20.1°C in January, the coldest month.
How much rain and snow does Norfolk-Treherne get?
The yearly total is about 517 mm. June gets 91 mm, the most of any month; February gets 17 mm, the least.
Are these figures for Norfolk-Treherne itself?
No: Norfolk-Treherne has no normals location, so the figures come from Cypress River, the nearest with 1991–2020 normals.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Norfolk-Treherne →
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).