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

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

The frost season in Chilliwack

  • Last frost (average): May 1
  • In 1 year out of 10 it still freezes on May 12.
  • First frost: October 15
  • Frost-free season: 162 days
  • Frost after 15 May: in 7 % of years

Frost days per month in Chilliwack

  • January: 22.8 · -4 °C
  • February: 21.8 · -4 °C
  • March: 20.6 · -2 °C
  • April: 10.4 · 1 °C
  • May: 1.4 · 5 °C
  • June: 0 · 8 °C
  • July: 0 · 11 °C
  • August: 0 · 11 °C
  • September: 0.2 · 8 °C
  • October: 4.5 · 3 °C
  • November: 16.1 · -1 °C
  • December: 24.9 · -5 °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.