GreenlySantiago: frost dates
Chile
| Last spring frost | around 9 August |
|---|---|
| First autumn frost | around 18 June |
| Frost-free days | 313 days |
Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.
When to sow and plant
| Crop | Sow for seedlings | Plant out in a greenhouse | Open ground |
|---|---|---|---|
| Bell Pepper | 11 July | 23 September | 14 October |
| Chili Pepper | 24 July | 6 October | 27 October |
| Corn | — | 10 August | sow 31 August |
| Cucumber | 12 August | 23 September | 14 October |
| Eggplant | 15 July | 23 September | 14 October |
| Green Beans | 4 July | 10 August | 31 August |
| Melon | 2 August | 23 September | 14 October |
| Peas | — | 28 June | sow 19 July |
| Physalis | 19 July | 2 September | 23 September |
| Pumpkin | 27 July | 2 September | 23 September |
| Sweet Corn | — | 10 August | sow 31 August |
| Tomato | 7 July | 2 September | 23 September |
| Watermelon | 22 August | 23 September | 14 October |
| Zucchini | 1 August | 2 September | 23 September |
Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day.
Planted in autumn
A month before the first autumn frost, so the roots grow before winter.