GreenlyZaragoza: frost dates
Spain
In Zaragoza the last spring frost usually comes around 28 January and the first autumn frost around 20 December, which leaves about 326 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground around 2 April.
| Last spring frost | around 28 January |
|---|---|
| First autumn frost | around 20 December |
| Frost-free days | 326 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 |
|---|---|---|---|
| Achocha | 16 December | 25 January | 15 February |
| Arugula | — | 17 December | sow 7 January |
| Basil | 2 March | 9 April | 30 April |
| Beet | — | 17 December | sow 7 January |
| Bell Pepper | 25 January | 9 April | 30 April |
| Black-eyed Susan | 15 December | — | 15 February |
| Bok Choy | 21 December | 25 January | 15 February |
| Broad bean | — | 17 December | sow 7 January |
| Broccoli | — | 17 December | sow 7 January |
| Brussels Sprouts | 2 November | 17 December | 7 January |
| Cabbage | — | 17 December | sow 7 January |
| Calendula | — | 17 December | sow 7 January |
| Carrot | — | — | sow 7 January |
| Cauliflower | 5 November | 17 December | 7 January |
| Celeriac | 9 November | 25 January | 15 February |
| Celery | 9 November | 25 January | 15 February |
| Celosia | 10 February | 27 March | 17 April |
| Chamomile | — | 17 December | sow 7 January |
| Chayote | 19 November | 15 February | 8 March |
| Chickpea | — | — | sow 7 January |
| Chili Pepper | 6 February | 21 April | 12 May |
| China aster | 16 February | 9 April | 30 April |
| Chives | — | — | sow 7 January |
| Cilantro | — | 17 December | sow 7 January |
| Corn | — | 15 February | sow 8 March |
| Cosmos | 10 February | 27 March | 17 April |
| Cucumber | 26 February | 9 April | 30 April |
| Daikon | — | 17 December | sow 7 January |
| Delphinium | 9 November | — | 7 January |
| Dill | — | 17 December | sow 7 January |
| Eggplant | 29 January | 9 April | 30 April |
| Florence fennel | 11 December | 25 January | 15 February |
| Garden sorrel | — | 17 December | sow 7 January |
| Green Beans | 9 January | 15 February | 8 March |
| Hyssop | — | — | sow 7 January |
| Kale | — | 17 December | sow 7 January |
| Kiwano | 8 February | 12 March | 2 April |
| Kohlrabi | — | 17 December | sow 7 January |
| Leek | 8 October | 17 December | 7 January |
| Lemon balm | — | 17 December | sow 7 January |
| Lettuce | — | 17 December | sow 7 January |
| Lisianthus | 21 September | 17 December | 7 January |
| Lovage | — | — | sow 7 January |
| Luffa | 26 February | 9 April | 30 April |
| Marigold | 14 December | 25 January | 15 February |
| Melon | 16 February | 9 April | 30 April |
| Microgreens | — | 27 March | sow 17 April |
| Moringa | 25 February | 21 April | 12 May |
| Mustard greens | — | 17 December | sow 7 January |
| Napa cabbage | 23 December | 25 January | 15 February |
| Nasturtium | 18 December | 25 January | 15 February |
| Okra | 26 February | 9 April | 30 April |
| Oregano | 18 October | 17 December | 7 January |
| Pansy | 22 October | 17 December | 7 January |
| Parsley | — | 17 December | sow 7 January |
| Parsnip | — | — | sow 7 January |
| Peanut | 3 March | 9 April | 30 April |
| Peas | — | 17 December | sow 7 January |
| Petunia | 5 February | 9 April | 30 April |
| Physalis | 26 January | 12 March | 2 April |
| Pumpkin | 3 February | 12 March | 2 April |
| Purple coneflower | 6 November | — | 7 January |
| Radish | — | — | sow 7 January |
| Sage | 29 October | 17 December | 7 January |
| Snapdragon | 13 October | 17 December | 7 January |
| Spinach | — | 17 December | sow 7 January |
| Stevia | 22 January | 12 March | 2 April |
| Stock | — | 17 December | sow 7 January |
| Sunflower | — | 27 March | sow 17 April |
| Sweet Corn | — | 15 February | sow 8 March |
| Sweet pea | 5 November | 17 December | 7 January |
| Sweet William | — | — | sow 7 January |
| Swiss Chard | — | 17 December | sow 7 January |
| Thyme | — | 17 December | sow 7 January |
| Tomato | 14 January | 12 March | 2 April |
| Turnip | — | 17 December | sow 7 January |
| Watercress | — | 17 December | sow 7 January |
| Watermelon | 8 March | 9 April | 30 April |
| Zinnia | 17 March | 21 April | 12 May |
| Zucchini | 8 February | 12 March | 2 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.
Zaragoza: weather for the next 7 days
Forecast by Open-Meteo. Nights at or below 0 °C are marked as frost.
Weather in Zaragoza by month
Average weather in Zaragoza over 2016–2025: the warmest month is July, the wettest November.
| Month | Day, °C | Night, °C | Rain, mm | Rainy days |
|---|---|---|---|---|
| January | 11.1 | 3.1 | 34 | 6 |
| February | 14.2 | 4.6 | 27 | 5 |
| March | 16.7 | 6.4 | 44 | 8 |
| April | 20.1 | 8.8 | 48 | 8 |
| May | 25.1 | 12.5 | 37 | 6 |
| June | 30.6 | 17.2 | 30 | 5 |
| July | 33.8 | 19.3 | 8 | 2 |
| August | 33.5 | 19.6 | 11 | 2 |
| September | 27.4 | 16 | 30 | 4 |
| October | 22.5 | 12.4 | 44 | 7 |
| November | 15.3 | 7.3 | 50 | 8 |
| December | 11.8 | 4.5 | 30 | 7 |
Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).
Planted in autumn
| Crop | Plant around |
|---|---|
| Bearded Iris | 20 November |
| Crocus | 20 November |
| Daffodil | 20 November |
| Garlic | 20 November |
| Hyacinth | 20 November |
| Lily | 20 November |
| Peony | 20 November |
| Saffron | 20 November |
| Tulip | 20 November |
| Wild garlic | 20 November |
A month before the first autumn frost, so the roots grow before winter.