Greenly

Omsk: frost dates

Russia

In Omsk the last spring frost usually comes around 5 May and the first autumn frost around 28 September, which leaves about 146 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground around 23 May.

Last spring frostaround 5 May
First autumn frostaround 28 September
Frost-free days146 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 to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Bell Pepper1 March14 May4 June
Chili Pepper15 March28 May18 June
Corn—21 Aprilsow 12 May
Cucumber2 April14 May4 June
Eggplant5 March14 May4 June
Green Beans15 March21 April12 May
Melon23 March14 May4 June
Peas—24 Marchsow 14 April
Physalis18 March2 May23 May
Pumpkin26 March2 May23 May
Sweet Corn—21 Aprilsow 12 May
Tomato6 March2 May23 May
Watermelon12 April14 May4 June
Zucchini31 March2 May23 May

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.

Planted in autumn

CropPlant around
Crocus29 August
Daffodil29 August
Garlic29 August
Hyacinth29 August
Lily29 August
Tulip29 August

A month before the first autumn frost, so the roots grow before winter.

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