Greenly Garden

Last and first frost dates in Arad

Romania

In Arad the last spring frost usually comes around 3 April and the first autumn frost around 19 November, which leaves about 230 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 29 April to 30 July.

Last spring frostaround 3 April
First autumn frostaround 19 November
Frost-free days230 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 is the last frost in Arad?

The last frost in Arad usually comes around 3 April: 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 13 March, while corn waits until 11 April. The first autumn frost follows around 19 November, about 230 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha8 February – 11 August20 March – 20 September10 April – 20 September
Ageratumfrom 11 February—from 29 April
Arugula——sow 13 March – 15 October
Basil24 March – 17 September1 May – 25 October22 May – 25 October
Beet——sow 13 March – 20 September
Bell Pepper2 March – 31 May1 May – 30 July22 May – 30 July
Black-eyed Susanfrom 17 January—from 10 April
Bok Choy13 February – 28 September20 March – 2 November10 April – 2 November
Borage——sow 10 April – 25 September
Broad bean——sow 13 March – 11 August
Broccoli——sow 13 March – 4 August
Brussels Sprouts6 January – 2 July20 February – 16 August13 March – 16 August
Busy Lizziefrom 16 January—from 10 April
Cabbage——sow 13 March – 12 July
Calendula——sow from 13 March
Carrot——sow 13 March – 27 August
Cauliflower9 January – 4 August20 February – 15 September13 March – 15 September
Celeriac2 January – 1 June20 March – 17 August10 April – 17 August
Celery2 January – 11 June20 March – 27 August10 April – 27 August
Celosiafrom 2 Marchfrom 16 Aprilfrom 7 May
Chamomile——sow 13 March – 15 September
Chayote23 December – 25 May21 March – 21 August11 April – 21 August
Chickpea——sow 13 March – 1 August
Chicory26 January – 26 August—13 March – 20 September
Chili Pepper2 March – 7 July1 May – 5 September22 May – 5 September
China asterfrom 10 Marchfrom 1 Mayfrom 22 May
Chives——sow 13 March – 6 September
Cilantro——sow 13 March – 16 September
Corn——sow 11 April – 1 August
Corn poppy——sow from 13 March
Cosmosfrom 2 Marchfrom 16 Aprilfrom 7 May
Cucumber3 April – 7 August1 May – 4 September22 May – 4 September
Daikon——sow 13 March – 13 September
Delphiniumfrom 23 December—from 13 March
Dill——sow 13 March – 26 September
Edging lobeliafrom 16 January—from 10 April
Eggplant2 March – 31 May1 May – 30 July22 May – 30 July
Florence fennel3 February – 11 August20 March – 25 September10 April – 25 September
Foxglovefrom 5 December—from 13 March
Garden sorrel——sow 13 March – 14 September
Green Beans——sow 7 May – 9 August
Hollyhock——sow from 13 March
Hyssop——sow 13 March – 7 August
Kale——sow 13 March – 8 September
Kiwano7 March – 14 August8 April – 15 September29 April – 15 September
Kohlrabi——sow 13 March – 18 September
Leek12 December – 23 May20 February – 1 August13 March – 1 August
Lemon balm——sow 13 March – 10 September
Lettuce——sow 13 March – 23 September
Lisianthusfrom 25 Novemberfrom 20 Februaryfrom 13 March
Lovage——sow from 13 March
Luffa20 March – 8 June1 May – 20 July22 May – 20 July
Marigoldfrom 6 Februaryfrom 20 Marchfrom 10 April
Marjoram2 March – 26 August—22 May – 25 October
Melon3 April – 25 July1 May – 22 August22 May – 22 August
Microgreens——sow 7 May – 5 November
Moringa20 March – 31 August14 May – 25 October4 June – 25 October
Moss rosefrom 23 January—from 10 April
Mustard greens——sow 13 March – 5 October
Napa cabbage15 February – 5 September20 March – 8 October10 April – 8 October
Nasturtiumfrom 10 Februaryfrom 20 Marchfrom 10 April
Okra20 March – 19 August1 May – 30 September22 May – 30 September
Oregano22 December – 16 August20 February – 15 October13 March – 15 October
Pansyfrom 26 Decemberfrom 20 Februaryfrom 13 March
Parsley——sow 13 March – 4 September
Parsnip——sow 13 March – 24 July
Peanut25 March – 15 July1 May – 21 August22 May – 21 August
Peas——sow 13 March – 6 September
Petuniafrom 27 Februaryfrom 1 Mayfrom 22 May
Physalis22 February – 12 July8 April – 26 August29 April – 26 August
Pumpkin20 March – 13 June1 May – 25 July22 May – 25 July
Purple coneflowerfrom 20 December—from 13 March
Radish——sow 13 March – 20 October
Sage2 January – 12 August20 February – 30 September13 March – 30 September
Scarlet sagefrom 15 February—from 29 April
Snapdragonfrom 17 Decemberfrom 20 Februaryfrom 13 March
Soybean——sow 22 May – 31 August
Spinach——sow 13 March – 25 September
Stevia18 February – 3 July8 April – 21 August29 April – 21 August
Stock——sow from 13 March
Sunflower——sow from 7 May
Sweet alyssum——sow from 13 March
Sweet Corn9 March – 26 August31 March – 17 September21 April – 17 September
Sweet peafrom 9 Januaryfrom 20 Februaryfrom 13 March
Sweet William——sow from 13 March
Swiss Chard——sow 13 March – 20 September
Thyme——sow 13 March – 1 August
Tomato15 February – 8 June8 April – 30 July29 April – 30 July
Turnip——sow 13 March – 22 September
Watercress——sow 13 March – 3 October
Watermelon3 April – 13 July1 May – 10 August22 May – 10 August
Zinniafrom 9 Aprilfrom 14 Mayfrom 4 June
Zucchini10 April – 12 August1 May – 2 September22 May – 2 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 Arad

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 6 days before the last spring frost and 15 °C 26 days after it.

SoilDateAgainst the last spring frost
5 °C18 January75 days earlier
10 °C28 March6 days earlier
15 °C29 April26 days later
18 °C22 May49 days later

Frost dates near Arad

Of the nearest cities on our list, the last spring frost ends earliest in Novi Sad (28 March) and latest in Kecskemét (8 April).

CityDistanceLast spring frostFirst autumn frost
Szeged90 km1 April23 November
Subotica127 km1 April21 November
Kecskemét149 km8 April12 November
Debrecen152 km29 March12 November
Novi Sad155 km28 March26 November

What to grow at home in winter in Arad

Frosts in Arad usually come from about 19 November to about 3 April. These plants have indoor care in their Greenly cards and are harvested quickly, so they can be sown on a windowsill in winter.

Weather in Arad by month

Average weather in Arad over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: May–September (21.7–29.3 °C). Nights average below 0 °C in January (-2.1 °C) and February (-0.1 °C). About 644 mm of rain falls in a year, on 110 days; June is the wettest month (83 mm) and October the driest (40 mm).

MonthDay, °CNight, °CRain, mmRainy days
January4.7-2.15311
February8.7-0.1428
March12.62.2459
April17.66.5489
May21.711.17112
June27.116.38312
July28.917.8538
August29.317.7517
September2413.4517
October187.9408
November11.23.4569
December6.20.15110

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

CropWhen to plant
Bearded Irisby 20 October
Crocus20 October – end of December
Daffodil20 October – end of December
Garlic20 October – end of December
Grape hyacinthby 20 October
Helleboreby 20 October
Hyacinth20 October – end of December
Lilyby 20 October
Ornamental onionby 20 October
Peonyby 20 October
Saffronby 20 October
Snowdropby 20 October
Tulip20 October – end of December
Wild garlicby 20 October

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).