Greenly

Athens: frost dates

Greece

Last spring frostaround 12 February
First autumn frostnone in ten years

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

CropSow for seedlingsPlant out in a greenhouseOpen ground
Bell Pepper9 January24 March14 April
Chili Pepper23 January7 April28 April
Corn—2 Februarysow 23 February
Cucumber10 February24 March14 April
Eggplant13 January24 March14 April
Green Beans27 December2 February23 February
Melon31 January24 March14 April
Peas—1 Januarysow 22 January
Physalis27 January13 March3 April
Pumpkin4 February13 March3 April
Sweet Corn—2 Februarysow 23 February
Tomato15 January13 March3 April
Watermelon20 February24 March14 April
Zucchini9 February13 March3 April

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

CropPlant around
Crocus1 October
Daffodil1 October
Garlic1 October
Hyacinth1 October
Lily1 October
Tulip1 October

A month before the first autumn frost, so the roots grow before winter.