Frost dates in Milan: last spring frost and first autumn frost
When is it safe to plant out in Milan, and when does the first frost come? Dates from 45 years of nightly minimum temperatures (1981–2025), with how early or late they can fall.
Frost dates in Milan and how sure they are
| Early year (1 in 10) | Typical (median) | Late year (1 in 10) | |
|---|---|---|---|
| Last spring frost | 3 February | 12 March | 31 March |
| First autumn frost | 11 November | 29 November | 20 December |
In a typical year the last frost in Milan falls around 12 March and the first one around 29 November, leaving about 268 frost-free days (between 236 and 295 in 8 years out of 10). To be safe, plant tender crops after 31 March: by then the last frost has passed in 9 years out of 10. Bring them in before 11 November: in 1 year in 10 the first frost comes earlier.
Frost month by month in Milan
| Month | Average low | Coldest night (avg) | Record low | Frost nights | Years with frost |
|---|---|---|---|---|---|
| January | 0.4 °C | -4 °C | -14.4 °C | 13.3 | 100% |
| February | 1.3 °C | -3.2 °C | -11.6 °C | 9.4 | 89% |
| March | 4.3 °C | -1 °C | -5.9 °C | 3.5 | 67% |
| April | 7.8 °C | 2.6 °C | -1.9 °C | 0.1 | 9% |
| May | 12.3 °C | 7.8 °C | 3.3 °C | 0 | 0% |
| June | 16.3 °C | 11.4 °C | 7.5 °C | 0 | 0% |
| July | 18.8 °C | 14.4 °C | 10.9 °C | 0 | 0% |
| August | 18.8 °C | 13.9 °C | 9.2 °C | 0 | 0% |
| September | 14.8 °C | 9.8 °C | 5.6 °C | 0 | 0% |
| October | 10.4 °C | 5.2 °C | -0.9 °C | 0 | 2% |
| November | 5.1 °C | -0.5 °C | -3.9 °C | 2.5 | 56% |
| December | 1.5 °C | -3.5 °C | -10.3 °C | 9.8 | 98% |
Frost here means a night minimum at or below 0 °C at 2 m. Frost nights is the average count per month; years with frost is how many years had at least one.
Frost alerts for your garden or field
LayEarth Business Agro sends an alert when the forecast low at your saved site drops below your threshold (0 °C by default), with frost risk, hours below zero and white or black frost for each forecast day. LayEarth Pro, from 9 USD a month, adds alerts for the places you follow.
Temperature map around Milan
The live temperature layer of the map (NOAA GFS forecast): watch the cold nights coming hour by hour.
More for Milan
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Questions
- When is the last frost in Milan?
- On average around 12 March. In an early year the last frost comes by 3 February, in a late one (1 year in 10) after 31 March.
- When is the first frost in Milan?
- On average around 29 November. In 1 year in 10 it comes before 11 November, in a mild year not until 20 December.
- How long is the growing season in Milan?
- About 268 frost-free days between the last spring frost and the first autumn frost, from 236 in a short year to 295 in a long one.
- When can I plant tomatoes in Milan?
- Frost-tender plants such as tomatoes, peppers, beans and courgettes go out after the last frost: after 31 March the risk is down to 1 year in 10. Hardy crops can go earlier.
- How cold does it get in Milan?
- The coldest night of winter averages -5.5 °C; the lowest since 1981 was -14.4 °C in 1985.
Frost dates nearby
How these dates are computed
Daily minimum temperature at 2 m from NASA POWER (MERRA-2 reanalysis, public domain), 1981–2025, corrected from the ~50 km grid to the real altitude of Milan (6.5 °C per km). For each year: the last night at or below 0 °C before midsummer and the first one after it; the dates are the median and the 10% / 90% of those years. A garden in a frost pocket or a city centre can differ by days. Live temperatures: the temperature layer of the map.