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

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

The frost season in Bend

Last frost (average): May 30
In 1 year out of 10 it still freezes on June 17.
First frost: September 21
Frost-free season: 115 days
Frost after 15 May: in 83 % of years

Frost days per month in Bend

January: 26.2 · -4 °C
February: 24.3 · -4 °C
March: 24.1 · -2 °C
April: 18.6 · -1 °C
May: 6.6 · 3 °C
June: 0.9 · 6 °C
July: 0 · 9 °C
August: 0.1 · 8 °C
September: 2 · 5 °C
October: 13.8 · 1 °C
November: 22.9 · -3 °C
December: 28.5 · -5 °C

Matched to the average lows of a weather station 21 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.