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Last and first frost dates in Chambéry

France

In Chambéry the last spring frost usually comes around 5 April and the first autumn frost around 20 November, which leaves about 229 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 13 May to 31 July.

Last spring frostaround 5 April
First autumn frostaround 20 November
Frost-free days229 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 Chambéry?

The last frost in Chambéry usually comes around 5 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 15 March, while corn waits until 18 April. The first autumn frost follows around 20 November, about 229 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha10 February – 12 August22 March – 21 September12 April – 21 September
Ageratumfrom 25 February—from 13 May
Arugula——sow 15 March – 16 October
Basil5 April – 18 September13 May – 26 October3 June – 26 October
Beet——sow 15 March – 21 September
Bell Pepper14 March – 1 June13 May – 31 July3 June – 31 July
Black-eyed Susanfrom 19 January—from 12 April
Bok Choy15 February – 29 September22 March – 3 November12 April – 3 November
Borage——sow 12 April – 26 September
Broad bean——sow 15 March – 12 August
Broccoli——sow 15 March – 5 August
Brussels Sprouts8 January – 3 July22 February – 17 August15 March – 17 August
Busy Lizziefrom 18 January—from 12 April
Cabbage——sow 15 March – 13 July
Calendula——sow from 15 March
Carrot——sow 15 March – 28 August
Cauliflower11 January – 5 August22 February – 16 September15 March – 16 September
Celeriac4 January – 2 June22 March – 18 August12 April – 18 August
Celery4 January – 12 June22 March – 28 August12 April – 28 August
Celosiafrom 23 Marchfrom 7 Mayfrom 28 May
Chamomile——sow 15 March – 16 September
Chayote30 December – 26 May28 March – 22 August18 April – 22 August
Chickpea——sow 15 March – 2 August
Chicory28 January – 27 August—15 March – 21 September
Chili Pepper14 March – 8 July13 May – 6 September3 June – 6 September
China asterfrom 22 Marchfrom 13 Mayfrom 3 June
Chives——sow 15 March – 7 September
Cilantro——sow 15 March – 17 September
Corn——sow 18 April – 2 August
Corn poppy——sow from 15 March
Cosmosfrom 23 Marchfrom 7 Mayfrom 28 May
Cucumber15 April – 8 August13 May – 5 September3 June – 5 September
Daikon——sow 15 March – 14 September
Delphiniumfrom 25 December—from 15 March
Dill——sow 15 March – 27 September
Edging lobeliafrom 18 January—from 12 April
Eggplant14 March – 1 June13 May – 31 July3 June – 31 July
Florence fennel5 February – 12 August22 March – 26 September12 April – 26 September
Foxglovefrom 7 December—from 15 March
Garden sorrel——sow 15 March – 15 September
Green Beans——sow 28 May – 10 August
Hollyhock——sow from 15 March
Hyssop——sow 15 March – 8 August
Kale——sow 15 March – 9 September
Kiwano21 March – 15 August22 April – 16 September13 May – 16 September
Kohlrabi——sow 15 March – 19 September
Leek14 December – 24 May22 February – 2 August15 March – 2 August
Lemon balm——sow 15 March – 11 September
Lettuce——sow 15 March – 24 September
Lisianthusfrom 27 Novemberfrom 22 Februaryfrom 15 March
Lovage——sow from 15 March
Luffa1 April – 9 June13 May – 21 July3 June – 21 July
Marigoldfrom 8 Februaryfrom 22 Marchfrom 12 April
Marjoram14 March – 27 August—3 June – 26 October
Melon15 April – 26 July13 May – 23 August3 June – 23 August
Microgreens——sow 28 May – 6 November
Moringa5 April – 1 September30 May – 26 October20 June – 26 October
Moss rosefrom 25 January—from 12 April
Mustard greens——sow 15 March – 6 October
Napa cabbage17 February – 6 September22 March – 9 October12 April – 9 October
Nasturtiumfrom 12 Februaryfrom 22 Marchfrom 12 April
Okra1 April – 20 August13 May – 1 October3 June – 1 October
Oregano24 December – 17 August22 February – 16 October15 March – 16 October
Pansyfrom 28 Decemberfrom 22 Februaryfrom 15 March
Parsley——sow 15 March – 5 September
Parsnip——sow 15 March – 25 July
Peanut6 April – 16 July13 May – 22 August3 June – 22 August
Peas——sow 15 March – 7 September
Petuniafrom 11 Marchfrom 13 Mayfrom 3 June
Physalis8 March – 13 July22 April – 27 August13 May – 27 August
Pumpkin1 April – 14 June13 May – 26 July3 June – 26 July
Purple coneflowerfrom 22 December—from 15 March
Radish——sow 15 March – 21 October
Sage4 January – 13 August22 February – 1 October15 March – 1 October
Scarlet sagefrom 1 March—from 13 May
Snapdragonfrom 19 Decemberfrom 22 Februaryfrom 15 March
Soybean——sow 3 June – 1 September
Spinach——sow 15 March – 26 September
Stevia4 March – 4 July22 April – 22 August13 May – 22 August
Stock——sow from 15 March
Sunflower——sow from 28 May
Sweet alyssum——sow from 15 March
Sweet Corn14 March – 27 August5 April – 18 September26 April – 18 September
Sweet peafrom 11 Januaryfrom 22 Februaryfrom 15 March
Sweet William——sow from 15 March
Swiss Chard——sow 15 March – 21 September
Thyme——sow 15 March – 2 August
Tomato1 March – 9 June22 April – 31 July13 May – 31 July
Turnip——sow 15 March – 23 September
Watercress——sow 15 March – 4 October
Watermelon15 April – 14 July13 May – 11 August3 June – 11 August
Zinniafrom 25 Aprilfrom 30 Mayfrom 20 June
Zucchini22 April – 13 August13 May – 3 September3 June – 3 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 Chambéry

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 5 days before the last spring frost and 15 °C 38 days after it.

SoilDateAgainst the last spring frost
5 °C8 February56 days earlier
10 °C31 March5 days earlier
15 °C13 May38 days later
18 °C3 June59 days later

Frost dates near Chambéry

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
Annecy41 km15 April14 November
Grenoble45 km5 May25 October
Geneva72 km10 April17 November
Lyon87 km26 March25 November
Valence106 km18 March21 November

Seeds, seedlings and markets in Chambéry

Within 15 km of Chambéry OpenStreetMap lists 12 garden centres, 1 farm-supply shop, 3 plant nurseries, 5 markets and 18 farm shops (collected 27 October 2026). The nearest garden centre to the city centre is Cholat Jardins et Pépinières, 1 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Chambéry

Frosts in Chambéry usually come from about 20 November to about 5 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 Chambéry by month

Average weather in Chambéry over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (22.5–27.4 °C). No month averages below 0 °C at night; the coldest nights, in January, average 0.1 °C. About 1530 mm of rain falls in a year, on 155 days; May is the wettest month (162 mm) and February the driest (88 mm).

MonthDay, °CNight, °CRain, mmRainy days
January7.50.113914
February10.91.98811
March13.53.311713
April16.86.210712
May19.810.116216
June25.115.114616
July27.216.711312
August27.416.69410
September22.512.911712
October18.49.113712
November11.53.815313
December8.4115714

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 21 October
Crocus21 October – end of December
Daffodil21 October – end of December
Garlic21 October – end of December
Grape hyacinthby 21 October
Helleboreby 21 October
Hyacinth21 October – end of December
Lilyby 21 October
Ornamental onionby 21 October
Peonyby 21 October
Saffronby 21 October
Snowdropby 21 October
Tulip21 October – end of December
Wild garlicby 21 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).