GreenlyAustin: frost dates
United States
In Austin the last spring frost usually comes around 19 February and the first autumn frost around 13 December, which leaves about 297 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground around 26 February.
| Last spring frost | around 19 February |
|---|---|
| First autumn frost | around 13 December |
| Frost-free days | 297 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 | 28 November | 10 February | 3 March |
| Chili Pepper | 15 December | 27 February | 20 March |
| Corn | — | 5 February | sow 26 February |
| Cucumber | 30 December | 10 February | 3 March |
| Eggplant | 2 December | 10 February | 3 March |
| Green Beans | 30 December | 5 February | 26 February |
| Melon | 20 December | 10 February | 3 March |
| Peas | — | 8 January | sow 29 January |
| Physalis | 22 December | 5 February | 26 February |
| Pumpkin | 30 December | 5 February | 26 February |
| Sweet Corn | — | 5 February | sow 26 February |
| Tomato | 10 December | 5 February | 26 February |
| Watermelon | 9 January | 10 February | 3 March |
| Zucchini | 4 January | 5 February | 26 February |
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.
Austin: weather for the next 7 days
Forecast by Open-Meteo. Nights at or below 0 °C are marked as frost.
Planted in autumn
| Crop | Plant around |
|---|---|
| Crocus | 13 November |
| Daffodil | 13 November |
| Garlic | 13 November |
| Hyacinth | 13 November |
| Lily | 13 November |
| Tulip | 13 November |
A month before the first autumn frost, so the roots grow before winter.