Greenly Garden

Last and first frost dates in Włocławek

Poland

In Włocławek the last spring frost usually comes around 26 April and the first autumn frost around 13 November, which leaves about 201 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 11 May to 24 July.

Last spring frostaround 26 April
First autumn frostaround 13 November
Frost-free days201 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 Włocławek?

The last frost in Włocławek usually comes around 26 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 5 April, while corn waits until 3 May. The first autumn frost follows around 13 November, about 201 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha3 March – 5 August12 April – 14 September3 May – 14 September
Ageratumfrom 23 February—from 11 May
Arugula——sow 5 April – 9 October
Basil8 April – 11 September16 May – 19 October6 June – 19 October
Beet——sow 5 April – 14 September
Bell Pepper17 March – 25 May16 May – 24 July6 June – 24 July
Black-eyed Susanfrom 9 February—from 3 May
Bok Choy8 March – 22 September12 April – 27 October3 May – 27 October
Borage——sow 3 May – 19 September
Broad bean——sow 5 April – 5 August
Broccoli——sow 5 April – 29 July
Brussels Sprouts29 January – 26 June15 March – 10 August5 April – 10 August
Busy Lizziefrom 8 February—from 3 May
Cabbage——sow 5 April – 6 July
Calendula——sow from 5 April
Carrot——sow 5 April – 21 August
Cauliflower1 February – 29 July15 March – 9 September5 April – 9 September
Celeriac25 January – 26 May12 April – 11 August3 May – 11 August
Celery25 January – 5 June12 April – 21 August3 May – 21 August
Celosiafrom 10 Marchfrom 24 Aprilfrom 15 May
Chamomile——sow 5 April – 9 September
Chayote14 January – 19 May12 April – 15 August3 May – 15 August
Chickpea——sow 5 April – 26 July
Chicory18 February – 20 August—5 April – 14 September
Chili Pepper17 March – 1 July16 May – 30 August6 June – 30 August
China asterfrom 25 Marchfrom 16 Mayfrom 6 June
Chives——sow 5 April – 31 August
Cilantro——sow 5 April – 10 September
Corn——sow 3 May – 26 July
Corn poppy——sow from 5 April
Cosmosfrom 10 Marchfrom 24 Aprilfrom 15 May
Cucumber18 April – 1 August16 May – 29 August6 June – 29 August
Daikon——sow 5 April – 7 September
Delphiniumfrom 15 January—from 5 April
Dill——sow 5 April – 20 September
Edging lobeliafrom 8 February—from 3 May
Eggplant17 March – 25 May16 May – 24 July6 June – 24 July
Florence fennel26 February – 5 August12 April – 19 September3 May – 19 September
Foxglovefrom 28 December—from 5 April
Garden sorrel——sow 5 April – 8 September
Green Beans——sow 15 May – 3 August
Hollyhock——sow from 5 April
Hyssop——sow 5 April – 1 August
Kale——sow 5 April – 2 September
Kiwano19 March – 8 August20 April – 9 September11 May – 9 September
Kohlrabi——sow 5 April – 12 September
Leek4 January – 17 May15 March – 26 July5 April – 26 July
Lemon balm——sow 5 April – 4 September
Lettuce——sow 5 April – 17 September
Lisianthusfrom 18 Decemberfrom 15 Marchfrom 5 April
Lovage——sow from 5 April
Luffa4 April – 2 June16 May – 14 July6 June – 14 July
Marigoldfrom 1 Marchfrom 12 Aprilfrom 3 May
Marjoram17 March – 20 August—6 June – 19 October
Melon18 April – 19 July16 May – 16 August6 June – 16 August
Microgreens——sow 15 May – 30 October
Moringa3 April – 25 August28 May – 19 October18 June – 19 October
Moss rosefrom 15 February—from 3 May
Mustard greens——sow 5 April – 29 September
Napa cabbage10 March – 30 August12 April – 2 October3 May – 2 October
Nasturtiumfrom 5 Marchfrom 12 Aprilfrom 3 May
Okra4 April – 13 August16 May – 24 September6 June – 24 September
Oregano14 January – 10 August15 March – 9 October5 April – 9 October
Pansyfrom 18 Januaryfrom 15 Marchfrom 5 April
Parsley——sow 5 April – 29 August
Parsnip——sow 5 April – 18 July
Peanut9 April – 9 July16 May – 15 August6 June – 15 August
Peas——sow 5 April – 31 August
Petuniafrom 14 Marchfrom 16 Mayfrom 6 June
Physalis6 March – 6 July20 April – 20 August11 May – 20 August
Pumpkin4 April – 7 June16 May – 19 July6 June – 19 July
Purple coneflowerfrom 12 January—from 5 April
Radish——sow 5 April – 14 October
Sage25 January – 6 August15 March – 24 September5 April – 24 September
Scarlet sagefrom 27 February—from 11 May
Snapdragonfrom 9 Januaryfrom 15 Marchfrom 5 April
Soybean——sow 6 June – 25 August
Spinach——sow 5 April – 19 September
Stevia2 March – 27 June20 April – 15 August11 May – 15 August
Stock——sow from 5 April
Sunflower——sow from 15 May
Sweet alyssum——sow from 5 April
Sweet Corn25 March – 20 August16 April – 11 September7 May – 11 September
Sweet peafrom 1 Februaryfrom 15 Marchfrom 5 April
Sweet William——sow from 5 April
Swiss Chard——sow 5 April – 14 September
Thyme——sow 5 April – 26 July
Tomato27 February – 2 June20 April – 24 July11 May – 24 July
Turnip——sow 5 April – 16 September
Watercress——sow 5 April – 27 September
Watermelon18 April – 7 July16 May – 4 August6 June – 4 August
Zinniafrom 23 Aprilfrom 28 Mayfrom 18 June
Zucchini25 April – 6 August16 May – 27 August6 June – 27 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 Włocławek

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

SoilDateAgainst the last spring frost
5 °C16 March41 days earlier
10 °C12 April14 days earlier
15 °C11 May15 days later
18 °C6 June41 days later

Frost dates near Włocławek

Of the nearest cities on our list, the last spring frost ends earliest in Płock (10 April) and latest in Grudziądz (27 April).

CityDistanceLast spring frostFirst autumn frost
Płock45 km10 April13 November
Toruń51 km26 April12 November
Konin73 km15 April17 November
Bydgoszcz88 km20 April12 November
Grudziądz95 km27 April16 November

What to grow at home in winter in Włocławek

Frosts in Włocławek usually come from about 13 November to about 26 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 Włocławek by month

Average weather in Włocławek over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (20.2–24.6 °C). Nights average below 0 °C in January (-2.3 °C), February (-1.7 °C) and December (-0.4 °C). About 649 mm of rain falls in a year, on 129 days; July is the wettest month (87 mm) and March the driest (35 mm).

MonthDay, °CNight, °CRain, mmRainy days
January2.5-2.34813
February4.7-1.74811
March8.80.23510
April143.9369
May18.88.55811
June2413.66311
July24.314.78712
August24.614.86210
September20.211.2589
October13.86.86412
November7.22.3429
December3.8-0.44812

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 14 October
Crocus14 October – end of December
Daffodil14 October – end of December
Garlic14 October – end of December
Grape hyacinthby 14 October
Helleboreby 14 October
Hyacinth14 October – end of December
Lilyby 14 October
Ornamental onionby 14 October
Peonyby 14 October
Saffronby 14 October
Snowdropby 14 October
Tulip14 October – end of December
Wild garlicby 14 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).