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

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

The frost season in Harrisonburg

Last frost (average): April 18
In 1 year out of 10 it still freezes on May 4.
First frost: October 26
Frost-free season: 186 days
Frost after 15 May: in 0 % of years

Frost days per month in Harrisonburg

January: 27.4 · -6 °C
February: 24.8 · -5 °C
March: 19.4 · -1 °C
April: 5.5 · 5 °C
May: 0.2 · 10 °C
June: 0 · 15 °C
July: 0 · 18 °C
August: 0 · 17 °C
September: 0 · 13 °C
October: 2.2 · 6 °C
November: 15.5 · 1 °C
December: 25.1 · -3 °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.