Last Frost Date Dublin: Frost Dates, Late Frost Risk & Growing Season
When is the last spring frost and the first autumn frost in Dublin? Frost dates from 30 years of data, the risk of late frost, frost-free days and planting dates.
The frost season in Dublin
- Last frost (average): March 3
- In 1 year out of 10 it still freezes on April 5.
- First frost: December 12
- Frost-free season: 280 days
- Frost after 15 May: in 0 % of years
Frost days per month in Dublin
- January: 3.7 · 2 °C
- February: 4.2 · 2 °C
- March: 2 · 3 °C
- April: 0.4 · 5 °C
- May: 0 · 7 °C
- June: 0 · 10 °C
- July: 0 · 12 °C
- August: 0 · 11 °C
- September: 0 · 10 °C
- October: 0 · 7 °C
- November: 0.5 · 4 °C
- December: 3.6 · 3 °C
- Matched to the average lows of a weather station 9 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.