Last Frost Date Saskatoon: Frost Dates, Late Frost Risk & Growing Season

When is the last spring frost and the first autumn frost in Saskatoon? Frost dates from 30 years of data, the risk of late frost, frost-free days and planting dates.

The frost season in Saskatoon

  • Last frost (average): May 13
  • In 1 year out of 10 it still freezes on May 22.
  • First frost: September 27
  • Frost-free season: 136 days
  • Frost after 15 May: in 30 % of years

Frost days per month in Saskatoon

  • January: 30.9 · -20 °C
  • February: 28.2 · -17 °C
  • March: 29.8 · -9 °C
  • April: 19.3 · -1 °C
  • May: 4.2 · 5 °C
  • June: 0 · 10 °C
  • July: 0 · 13 °C
  • August: 0 · 12 °C
  • September: 1.9 · 7 °C
  • October: 16.9 · 0 °C
  • November: 28.8 · -8 °C
  • December: 31 · -16 °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.