Last Frost Date South Bend: Frost Dates, Late Frost Risk & Growing Season

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

The frost season in South Bend

  • Last frost (average): April 26
  • In 1 year out of 10 it still freezes on May 8.
  • First frost: October 26
  • Frost-free season: 185 days
  • Frost after 15 May: in 3 % of years

Frost days per month in South Bend

  • January: 29 · -8 °C
  • February: 26.7 · -7 °C
  • March: 23.7 · -3 °C
  • April: 9 · 3 °C
  • May: 0.3 · 9 °C
  • June: 0 · 15 °C
  • July: 0 · 17 °C
  • August: 0 · 16 °C
  • September: 0 · 12 °C
  • October: 2.3 · 6 °C
  • November: 16.8 · 0 °C
  • December: 26.9 · -5 °C
  • Matched to the average lows of a weather station 2 km away – accurate to about ±1–2 weeks.
  • 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.