Last Frost Date Trois-Rivières: Frost Dates, Late Frost Risk & Growing Season
When is the last spring frost and the first autumn frost in Trois-Rivières? Frost dates from 30 years of data, the risk of late frost, frost-free days and planting dates.
The frost season in Trois-Rivières
- Last frost (average): May 11
- In 1 year out of 10 it still freezes on May 23.
- First frost: October 6
- Frost-free season: 150 days
- Frost after 15 May: in 33 % of years
Frost days per month in Trois-Rivières
- January: 30.6 · -20 °C
- February: 28.1 · -18 °C
- March: 30 · -11 °C
- April: 20.1 · -2 °C
- May: 2.8 · 6 °C
- June: 0 · 12 °C
- July: 0 · 15 °C
- August: 0 · 14 °C
- September: 0.3 · 9 °C
- October: 9.2 · 3 °C
- November: 24.2 · -4 °C
- December: 30.6 · -13 °C
- No weather station nearby: plain grid values, which are often a little too cold – dates may therefore be late.
- Daily minimum temperatures 2 m above ground over 30 years (1991–2020), NASA POWER; station data: Deutscher Wetterdienst (CC BY 4.0). Ground frost can form while the air at 2 m is still +2 to +3 °C.