Greenly Garden

Last and first frost dates in Kovel

Ukraine

In Kovel the last spring frost usually comes around 20 April and the first autumn frost around 10 November, which leaves about 204 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 18 May to 21 July.

Last spring frostaround 20 April
First autumn frostaround 10 November
Frost-free days204 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 Kovel?

The last frost in Kovel usually comes around 20 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 30 March, while corn waits until 29 April. The first autumn frost follows around 10 November, about 204 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha25 February – 2 August6 April – 11 September27 April – 11 September
Ageratumfrom 2 March—from 18 May
Arugula——sow 30 March – 6 October
Basil10 April – 8 September18 May – 16 October8 June – 16 October
Beet——sow 30 March – 11 September
Bell Pepper19 March – 22 May18 May – 21 July8 June – 21 July
Black-eyed Susanfrom 3 February—from 27 April
Bok Choy2 March – 19 September6 April – 24 October27 April – 24 October
Borage——sow 27 April – 16 September
Broad bean——sow 30 March – 2 August
Broccoli——sow 30 March – 26 July
Brussels Sprouts23 January – 23 June9 March – 7 August30 March – 7 August
Busy Lizziefrom 2 February—from 27 April
Cabbage——sow 30 March – 3 July
Calendula——sow from 30 March
Carrot——sow 30 March – 18 August
Cauliflower26 January – 26 July9 March – 6 September30 March – 6 September
Celeriac19 January – 23 May6 April – 8 August27 April – 8 August
Celery19 January – 2 June6 April – 18 August27 April – 18 August
Celosiafrom 21 Marchfrom 5 Mayfrom 26 May
Chamomile——sow 30 March – 6 September
Chayote10 January – 16 May8 April – 12 August29 April – 12 August
Chickpea——sow 30 March – 23 July
Chicory12 February – 17 August—30 March – 11 September
Chili Pepper19 March – 28 June18 May – 27 August8 June – 27 August
China asterfrom 27 Marchfrom 18 Mayfrom 8 June
Chives——sow 30 March – 28 August
Cilantro——sow 30 March – 7 September
Corn——sow 29 April – 23 July
Corn poppy——sow from 30 March
Cosmosfrom 21 Marchfrom 5 Mayfrom 26 May
Cucumber20 April – 29 July18 May – 26 August8 June – 26 August
Daikon——sow 30 March – 4 September
Delphiniumfrom 9 January—from 30 March
Dill——sow 30 March – 17 September
Edging lobeliafrom 2 February—from 27 April
Eggplant19 March – 22 May18 May – 21 July8 June – 21 July
Florence fennel20 February – 2 August6 April – 16 September27 April – 16 September
Foxglovefrom 22 December—from 30 March
Garden sorrel——sow 30 March – 5 September
Green Beans——sow 26 May – 31 July
Hollyhock——sow from 30 March
Hyssop——sow 30 March – 29 July
Kale——sow 30 March – 30 August
Kiwano26 March – 5 August27 April – 6 September18 May – 6 September
Kohlrabi——sow 30 March – 9 September
Leek29 December – 14 May9 March – 23 July30 March – 23 July
Lemon balm——sow 30 March – 1 September
Lettuce——sow 30 March – 14 September
Lisianthusfrom 12 Decemberfrom 9 Marchfrom 30 March
Lovage——sow from 30 March
Luffa6 April – 30 May18 May – 11 July8 June – 11 July
Marigoldfrom 23 Februaryfrom 6 Aprilfrom 27 April
Marjoram19 March – 17 August—8 June – 16 October
Melon20 April – 16 July18 May – 13 August8 June – 13 August
Microgreens——sow 26 May – 27 October
Moringa3 April – 22 August28 May – 16 October18 June – 16 October
Moss rosefrom 9 February—from 27 April
Mustard greens——sow 30 March – 26 September
Napa cabbage4 March – 27 August6 April – 29 September27 April – 29 September
Nasturtiumfrom 27 Februaryfrom 6 Aprilfrom 27 April
Okra6 April – 10 August18 May – 21 September8 June – 21 September
Oregano8 January – 7 August9 March – 6 October30 March – 6 October
Pansyfrom 12 Januaryfrom 9 Marchfrom 30 March
Parsley——sow 30 March – 26 August
Parsnip——sow 30 March – 15 July
Peanut11 April – 6 July18 May – 12 August8 June – 12 August
Peas——sow 30 March – 28 August
Petuniafrom 16 Marchfrom 18 Mayfrom 8 June
Physalis13 March – 3 July27 April – 17 August18 May – 17 August
Pumpkin6 April – 4 June18 May – 16 July8 June – 16 July
Purple coneflowerfrom 6 January—from 30 March
Radish——sow 30 March – 11 October
Sage19 January – 3 August9 March – 21 September30 March – 21 September
Scarlet sagefrom 6 March—from 18 May
Snapdragonfrom 3 Januaryfrom 9 Marchfrom 30 March
Soybean——sow 8 June – 22 August
Spinach——sow 30 March – 16 September
Stevia9 March – 24 June27 April – 12 August18 May – 12 August
Stock——sow from 30 March
Sunflower——sow from 26 May
Sweet alyssum——sow from 30 March
Sweet Corn19 March – 17 August10 April – 8 September1 May – 8 September
Sweet peafrom 26 Januaryfrom 9 Marchfrom 30 March
Sweet William——sow from 30 March
Swiss Chard——sow 30 March – 11 September
Thyme——sow 30 March – 23 July
Tomato6 March – 30 May27 April – 21 July18 May – 21 July
Turnip——sow 30 March – 13 September
Watercress——sow 30 March – 24 September
Watermelon20 April – 4 July18 May – 1 August8 June – 1 August
Zinniafrom 23 Aprilfrom 28 Mayfrom 18 June
Zucchini27 April – 3 August18 May – 24 August8 June – 24 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 Kovel

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 same day the last spring frost and 15 °C 28 days after it.

SoilDateAgainst the last spring frost
5 °C12 March39 days earlier
10 °C20 Aprilsame day
15 °C18 May28 days later
18 °C8 June49 days later

Frost dates near Kovel

Of the nearest cities on our list, the last spring frost ends earliest in Lutsk (15 April) and latest in Brest (23 April).

CityDistanceLast spring frostFirst autumn frost
Novovolynsk66 km20 April10 November
Lutsk68 km15 April21 October
Kobryn113 km23 April8 November
Dubno117 km18 April21 October
Brest120 km23 April13 November

What to grow at home in winter in Kovel

Frosts in Kovel usually come from about 10 November to about 20 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 Kovel by month

Average weather in Kovel over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (20–25.1 °C). Nights average below 0 °C in December–March (-4–-0.7 °C). About 728 mm of rain falls in a year, on 134 days; July is the wettest month (101 mm) and March the driest (45 mm).

MonthDay, °CNight, °CRain, mmRainy days
January1.1-45112
February3.4-2.94611
March8.3-0.74511
April14.23.95112
May18.98.57312
June23.913.97612
July24.615.110114
August25.114.7599
September2010.9669
October13.66.15510
November6.61.6459
December2.6-1.56013

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 11 October
Crocus11 October – 10 December
Daffodil11 October – 10 December
Garlic11 October – 10 December
Grape hyacinthby 11 October
Helleboreby 11 October
Hyacinth11 October – 10 December
Lilyby 11 October
Ornamental onionby 11 October
Peonyby 11 October
Saffronby 11 October
Snowdropby 11 October
Tulip11 October – 10 December
Wild garlicby 11 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).