Last Frost Date Irondequoit: Frost Dates, Late Frost Risk & Growing Season
When is the last spring frost and the first autumn frost in Irondequoit? Frost dates from 30 years of data, the risk of late frost, frost-free days and planting dates.
The frost season in Irondequoit
- Last frost (average): April 24
- In 1 year out of 10 it still freezes on April 29.
- First frost: October 30
- Frost-free season: 189 days
- Frost after 15 May: in 0 % of years
Frost days per month in Irondequoit
- January: 28 · -7 °C
- February: 25.8 · -7 °C
- March: 22.5 · -3 °C
- April: 8.1 · 3 °C
- May: 0.1 · 9 °C
- June: 0 · 14 °C
- July: 0 · 17 °C
- August: 0 · 16 °C
- September: 0 · 12 °C
- October: 1.4 · 6 °C
- November: 13.2 · 1 °C
- December: 25 · -4 °C
- Matched to the average lows of a weather station 11 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.