Climate and weather averages
What Winnipeg's weather is normally like, month by month, from the official Environment Canada climate normals.
A climate normal is a thirty-year average, not a forecast and not last year. Comparing a normal against today’s weather is how you tell whether a day is unusual for the time of year. This page uses the 1981-2010 normals for WINNIPEG RICHARDSON INT'L A (Winnipeg Richardson International Airport).
The year at a glance
Month by month
| Month | Mean °C | Daily high °C | Daily low °C | Rain mm | Snow cm | Precip mm |
|---|---|---|---|---|---|---|
| January | -16.4 | -11.3 | -21.4 | 0 | 24 | 20 |
| February | -13.2 | -8.1 | -18.3 | 3 | 12 | 14 |
| March | -5.8 | -0.8 | -10.7 | 10 | 16 | 24 |
| April | 4.4 | 10.9 | -2.0 | 19 | 11 | 30 |
| May | 11.6 | 18.6 | 4.5 | 54 | 3 | 57 |
| June | 17.0 | 23.2 | 10.7 | 90 | 0 | 90 |
| July | 19.7 | 25.9 | 13.4 | 80 | 0 | 80 |
| August | 18.8 | 25.4 | 12.1 | 77 | 0 | 77 |
| September | 12.7 | 19.0 | 6.4 | 46 | 0 | 46 |
| October | 5.0 | 10.5 | -0.5 | 33 | 5 | 38 |
| November | -4.8 | -0.5 | -9.2 | 7 | 20 | 25 |
| December | -13.2 | -8.5 | -17.8 | 1 | 23 | 21 |
The same station records an average of 2,353 hours of bright sunshine a year, and 125 days a year with measurable precipitation. Sunshine is measured with a recorder rather than estimated from cloud cover, which is why some stations — Halifax among them — do not publish it.
Frost and the growing season
The frost-free period averages 121 days a year at this station. The last frost of spring falls around day 143 of the year and the first frost of autumn around day 265. Days are counted from 1 January.
Official sources
- Canadian Climate Normals 1981-2010 — WINNIPEG RICHARDSON INT'L A
- Environment Canada — current conditions and forecast
Details such as fares, fees, hours and program rules change. Always confirm against the official source before acting on anything time-sensitive.