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Last and first frost dates in Saint-Étienne

France

In Saint-Étienne the last spring frost usually comes around 13 April and the first autumn frost around 17 November, which leaves about 218 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 30 May to 28 July.

Last spring frostaround 13 April
First autumn frostaround 17 November
Frost-free days218 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 Saint-Étienne?

The last frost in Saint-Étienne usually comes around 13 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 23 March, while corn waits until 26 April. The first autumn frost follows around 17 November, about 218 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha18 February – 9 August30 March – 18 September20 April – 18 September
Ageratumfrom 14 March—from 30 May
Arugula——sow 23 March – 13 October
Basil16 April – 15 September24 May – 23 October14 June – 23 October
Beet——sow 23 March – 18 September
Bell Pepper25 March – 29 May24 May – 28 July14 June – 28 July
Black-eyed Susanfrom 27 January—from 20 April
Bok Choy23 February – 26 September30 March – 31 October20 April – 31 October
Borage——sow 20 April – 23 September
Broad bean——sow 23 March – 9 August
Broccoli——sow 23 March – 2 August
Brussels Sprouts16 January – 30 June2 March – 14 August23 March – 14 August
Busy Lizziefrom 26 January—from 20 April
Cabbage——sow 23 March – 10 July
Calendula——sow from 23 March
Carrot——sow 23 March – 25 August
Cauliflower19 January – 2 August2 March – 13 September23 March – 13 September
Celeriac12 January – 30 May30 March – 15 August20 April – 15 August
Celery12 January – 9 June30 March – 25 August20 April – 25 August
Celosiafrom 27 Marchfrom 11 Mayfrom 1 June
Chamomile——sow 23 March – 13 September
Chayote7 January – 23 May5 April – 19 August26 April – 19 August
Chickpea——sow 23 March – 30 July
Chicory5 February – 24 August—23 March – 18 September
Chili Pepper25 March – 5 July24 May – 3 September14 June – 3 September
China asterfrom 2 Aprilfrom 24 Mayfrom 14 June
Chives——sow 23 March – 4 September
Cilantro——sow 23 March – 14 September
Corn——sow 26 April – 30 July
Corn poppy——sow from 23 March
Cosmosfrom 27 Marchfrom 11 Mayfrom 1 June
Cucumber26 April – 5 August24 May – 2 September14 June – 2 September
Daikon——sow 23 March – 11 September
Delphiniumfrom 2 January—from 23 March
Dill——sow 23 March – 24 September
Edging lobeliafrom 26 January—from 20 April
Eggplant25 March – 29 May24 May – 28 July14 June – 28 July
Florence fennel13 February – 9 August30 March – 23 September20 April – 23 September
Foxglovefrom 15 December—from 23 March
Garden sorrel——sow 23 March – 12 September
Green Beans——sow 1 June – 7 August
Hollyhock——sow from 23 March
Hyssop——sow 23 March – 5 August
Kale——sow 23 March – 6 September
Kiwano7 April – 12 August9 May – 13 September30 May – 13 September
Kohlrabi——sow 23 March – 16 September
Leek22 December – 21 May2 March – 30 July23 March – 30 July
Lemon balm——sow 23 March – 8 September
Lettuce——sow 23 March – 21 September
Lisianthusfrom 5 Decemberfrom 2 Marchfrom 23 March
Lovage——sow from 23 March
Luffa12 April – 6 June24 May – 18 July14 June – 18 July
Marigoldfrom 16 Februaryfrom 30 Marchfrom 20 April
Marjoram25 March – 24 August—14 June – 23 October
Melon26 April – 23 July24 May – 20 August14 June – 20 August
Microgreens——sow 1 June – 3 November
Moringa9 April – 29 August3 June – 23 October24 June – 23 October
Moss rosefrom 2 February—from 20 April
Mustard greens——sow 23 March – 3 October
Napa cabbage25 February – 3 September30 March – 6 October20 April – 6 October
Nasturtiumfrom 20 Februaryfrom 30 Marchfrom 20 April
Okra12 April – 17 August24 May – 28 September14 June – 28 September
Oregano1 January – 14 August2 March – 13 October23 March – 13 October
Pansyfrom 5 Januaryfrom 2 Marchfrom 23 March
Parsley——sow 23 March – 2 September
Parsnip——sow 23 March – 22 July
Peanut17 April – 13 July24 May – 19 August14 June – 19 August
Peas——sow 23 March – 4 September
Petuniafrom 22 Marchfrom 24 Mayfrom 14 June
Physalis25 March – 10 July9 May – 24 August30 May – 24 August
Pumpkin12 April – 11 June24 May – 23 July14 June – 23 July
Purple coneflowerfrom 30 December—from 23 March
Radish——sow 23 March – 18 October
Sage12 January – 10 August2 March – 28 September23 March – 28 September
Scarlet sagefrom 18 March—from 30 May
Snapdragonfrom 27 Decemberfrom 2 Marchfrom 23 March
Soybean——sow 14 June – 29 August
Spinach——sow 23 March – 23 September
Stevia21 March – 1 July9 May – 19 August30 May – 19 August
Stock——sow from 23 March
Sunflower——sow from 1 June
Sweet alyssum——sow from 23 March
Sweet Corn29 March – 24 August20 April – 15 September11 May – 15 September
Sweet peafrom 19 Januaryfrom 2 Marchfrom 23 March
Sweet William——sow from 23 March
Swiss Chard——sow 23 March – 18 September
Thyme——sow 23 March – 30 July
Tomato18 March – 6 June9 May – 28 July30 May – 28 July
Turnip——sow 23 March – 20 September
Watercress——sow 23 March – 1 October
Watermelon26 April – 11 July24 May – 8 August14 June – 8 August
Zinniafrom 29 Aprilfrom 3 Junefrom 24 June
Zucchini3 May – 10 August24 May – 31 August14 June – 31 August

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 Saint-Étienne

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 1 day after the last spring frost and 15 °C 47 days after it.

SoilDateAgainst the last spring frost
5 °C2 February70 days earlier
10 °C14 April1 day later
15 °C30 May47 days later
18 °C14 June62 days later

Frost dates near Saint-Étienne

Of the nearest cities on our list, the last spring frost ends earliest in Valence (18 March) and latest in Grenoble (5 May).

CityDistanceLast spring frostFirst autumn frost
Lyon50 km26 March25 November
Valence70 km18 March21 November
Grenoble108 km5 May25 October
Clermont-Ferrand109 km15 April12 November
Chambéry120 km5 April20 November

Seeds, seedlings and markets in Saint-Étienne

Within 15 km of Saint-Étienne OpenStreetMap lists 12 garden centres, 5 farm-supply shops, 1 plant nursery, 21 markets and 13 farm shops (collected 20 October 2026). The nearest garden centre to the city centre is Il Vertigo, 0 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Saint-Étienne

Frosts in Saint-Étienne usually come from about 17 November to about 13 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 Saint-Étienne by month

Average weather in Saint-Étienne over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (21–25.7 °C). Nights average below 0 °C in January (-0.9 °C). About 957 mm of rain falls in a year, on 142 days; May is the wettest month (117 mm) and February the driest (46 mm).

MonthDay, °CNight, °CRain, mmRainy days
January5.9-0.96314
February8.80.3469
March11.228113
April14.34.48013
May17.7811716
June23.312.99914
July25.514.5689
August25.714.5648
September2111.17110
October16.37.710511
November9.92.98312
December7.20.48013

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 18 October
Crocus18 October – end of December
Daffodil18 October – end of December
Garlic18 October – end of December
Grape hyacinthby 18 October
Helleboreby 18 October
Hyacinth18 October – end of December
Lilyby 18 October
Ornamental onionby 18 October
Peonyby 18 October
Saffronby 18 October
Snowdropby 18 October
Tulip18 October – end of December
Wild garlicby 18 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).