Last and first frost dates in Paraná
Argentina
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| Last spring frost | around 8 July |
|---|---|
| First autumn frost | none 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 is the last frost in Paraná?
The last frost in Paraná usually comes around 8 July: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 17 June, while corn waits until 15 July.
When to sow and plant
| Crop | Sow for seedlings | Plant out in a greenhouse | Open ground |
|---|---|---|---|
| Achocha | from 15 May | from 24 June | from 15 July |
| Ageratum | from 14 May | — | from 30 July |
| Arugula | — | — | sow from 17 June |
| Basil | from 13 July | from 20 August | from 10 September |
| Beet | — | — | sow from 17 June |
| Bell Pepper | from 21 June | from 20 August | from 10 September |
| Black-eyed Susan | from 23 April | — | from 15 July |
| Bok Choy | from 20 May | from 24 June | from 15 July |
| Borage | — | — | sow from 15 July |
| Broad bean | — | — | sow from 17 June |
| Broccoli | — | — | sow from 17 June |
| Brussels Sprouts | from 12 April | from 27 May | from 17 June |
| Busy Lizzie | from 22 April | — | from 15 July |
| Cabbage | — | — | sow from 17 June |
| Calendula | — | — | sow from 17 June |
| Carrot | — | — | sow from 17 June |
| Cauliflower | from 15 April | from 27 May | from 17 June |
| Celeriac | from 8 April | from 24 June | from 15 July |
| Celery | from 8 April | from 24 June | from 15 July |
| Celosia | from 9 June | from 24 July | from 14 August |
| Chamomile | — | — | sow from 17 June |
| Chayote | from 28 March | from 24 June | from 15 July |
| Chickpea | — | — | sow from 17 June |
| Chicory | from 2 May | — | from 17 June |
| Chili Pepper | from 21 June | from 20 August | from 10 September |
| China aster | from 29 June | from 20 August | from 10 September |
| Chives | — | — | sow from 17 June |
| Cilantro | — | — | sow from 17 June |
| Corn | — | — | sow from 15 July |
| Corn poppy | — | — | sow from 17 June |
| Cosmos | from 9 June | from 24 July | from 14 August |
| Cucumber | from 23 July | from 20 August | from 10 September |
| Daikon | — | — | sow from 17 June |
| Delphinium | from 29 March | — | from 17 June |
| Dill | — | — | sow from 17 June |
| Edging lobelia | from 22 April | — | from 15 July |
| Eggplant | from 21 June | from 20 August | from 10 September |
| Florence fennel | from 10 May | from 24 June | from 15 July |
| Foxglove | from 11 March | — | from 17 June |
| Garden sorrel | — | — | sow from 17 June |
| Green Beans | — | — | sow from 14 August |
| Hollyhock | — | — | sow from 17 June |
| Hyssop | — | — | sow from 17 June |
| Kale | — | — | sow from 17 June |
| Kiwano | from 7 June | from 9 July | from 30 July |
| Kohlrabi | — | — | sow from 17 June |
| Leek | from 18 March | from 27 May | from 17 June |
| Lemon balm | — | — | sow from 17 June |
| Lettuce | — | — | sow from 17 June |
| Lisianthus | from 1 March | from 27 May | from 17 June |
| Lovage | — | — | sow from 17 June |
| Luffa | from 9 July | from 20 August | from 10 September |
| Marigold | from 13 May | from 24 June | from 15 July |
| Marjoram | from 21 June | — | from 10 September |
| Melon | from 23 July | from 20 August | from 10 September |
| Microgreens | — | — | sow from 14 August |
| Moringa | from 19 July | from 12 September | from 3 October |
| Moss rose | from 29 April | — | from 15 July |
| Mustard greens | — | — | sow from 17 June |
| Napa cabbage | from 22 May | from 24 June | from 15 July |
| Nasturtium | from 17 May | from 24 June | from 15 July |
| Okra | from 9 July | from 20 August | from 10 September |
| Oregano | from 28 March | from 27 May | from 17 June |
| Pansy | from 1 April | from 27 May | from 17 June |
| Parsley | — | — | sow from 17 June |
| Parsnip | — | — | sow from 17 June |
| Peanut | from 14 July | from 20 August | from 10 September |
| Peas | — | — | sow from 17 June |
| Petunia | from 18 June | from 20 August | from 10 September |
| Physalis | from 25 May | from 9 July | from 30 July |
| Pumpkin | from 9 July | from 20 August | from 10 September |
| Purple coneflower | from 26 March | — | from 17 June |
| Radish | — | — | sow from 17 June |
| Sage | from 8 April | from 27 May | from 17 June |
| Scarlet sage | from 18 May | — | from 30 July |
| Snapdragon | from 23 March | from 27 May | from 17 June |
| Soybean | — | — | sow from 10 September |
| Spinach | — | — | sow from 17 June |
| Stevia | from 21 May | from 9 July | from 30 July |
| Stock | — | — | sow from 17 June |
| Sunflower | — | — | sow from 14 August |
| Sweet alyssum | — | — | sow from 17 June |
| Sweet Corn | from 2 June | from 24 June | from 15 July |
| Sweet pea | from 15 April | from 27 May | from 17 June |
| Sweet William | — | — | sow from 17 June |
| Swiss Chard | — | — | sow from 17 June |
| Thyme | — | — | sow from 17 June |
| Tomato | from 18 May | from 9 July | from 30 July |
| Turnip | — | — | sow from 17 June |
| Watercress | — | — | sow from 17 June |
| Watermelon | from 23 July | from 20 August | from 10 September |
| Zinnia | from 8 August | from 12 September | from 3 October |
| Zucchini | from 30 July | from 20 August | from 10 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. Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.
When the soil warms up in Paraná
The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo).
| Soil | Date | Against the last spring frost |
|---|---|---|
| 5 °C | already in the first week of July | — |
| 10 °C | already in the first week of July | — |
| 15 °C | 30 July | 22 days later |
| 18 °C | 10 September | 64 days later |
Frost dates near Paraná
Of the nearest cities on our list, the last spring frost ends earliest in Santa Fe (1 July) and latest in San Francisco (Argentina) (29 July).
| City | Distance | Last spring frost | First autumn frost |
|---|---|---|---|
| Santa Fe | 19 km | 1 July | — |
| Rafaela | 106 km | 17 July | 17 June |
| Rosario | 136 km | 16 July | 15 June |
| San Francisco (Argentina) | 151 km | 29 July | 25 June |
| Paysandú | 240 km | 15 July | 27 June |
Seeds, seedlings and markets in Paraná
Within 15 km of Paraná OpenStreetMap lists 1 garden centre and 5 markets (collected 27 October 2026). The nearest market to the city centre is Mercado Nogoyá, 1 km away.
- Mercado Nogoyá — market
Nogoyá, 3100 Paraná · 1 km - Día — market
Benicio López, 3100 Paraná · 6 km - Supermercado Amanecer — market
Avenida Zanni 2614, 3100 Paraná · 6 km - Mercado Concentrador El Charrua — market
Almafuerte, 3100 Paraná · 6 km
Places: © OpenStreetMap contributors, ODbL.
Paraná: weather for the next 7 days
Forecast by Open-Meteo. Nights at or below 0 °C are marked as frost.
Weather in Paraná by month
Average weather in Paraná over 2016–2025: the warmest month is January. Months that average 20 °C or more by day: September–April (22.1–30.9 °C). Months that average 30 °C or more by day: January (30.9 °C). No month averages below 0 °C at night; the coldest nights, in July, average 8.7 °C. About 967 mm of rain falls in a year, on 82 days; January is the wettest month (118 mm) and June the driest (38 mm).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days |
|---|---|---|---|---|
| January | 30.9 | 21.6 | 118 | 8 |
| February | 29.9 | 20.8 | 107 | 7 |
| March | 27.4 | 18.9 | 115 | 8 |
| April | 23.5 | 15.8 | 111 | 9 |
| May | 19.2 | 12 | 68 | 7 |
| June | 16.9 | 9.2 | 38 | 5 |
| July | 16.6 | 8.7 | 49 | 5 |
| August | 19.3 | 9.7 | 46 | 5 |
| September | 22.1 | 11.8 | 44 | 5 |
| October | 24.8 | 14.4 | 84 | 8 |
| November | 27.8 | 17.4 | 89 | 7 |
| December | 29.8 | 19.7 | 98 | 8 |
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).