Last Frost Date Eau Claire: Frost Dates, Late Frost Risk & Growing Season
When is the last spring frost and the first autumn frost in Eau Claire? Frost dates from 30 years of data, the risk of late frost, frost-free days and planting dates.
The frost season in Eau Claire
- Last frost (average): May 4
- In 1 year out of 10 it still freezes on May 17.
- First frost: October 7
- Frost-free season: 153 days
- Frost after 15 May: in 20 % of years
Frost days per month in Eau Claire
- January: 30.9 · -17 °C
- February: 27.8 · -14 °C
- March: 27.2 · -6 °C
- April: 15.6 · 0 °C
- May: 1.9 · 7 °C
- June: 0 · 13 °C
- July: 0 · 15 °C
- August: 0 · 15 °C
- September: 0.3 · 10 °C
- October: 9.1 · 3 °C
- November: 24.6 · -4 °C
- December: 30.5 · -12 °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.