GreenlyOmsk: 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 frost | around 5 May |
|---|---|
| First autumn frost | around 28 September |
| Frost-free days | 146 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
| Crop | Sow for seedlings | Plant out in a greenhouse | Open ground |
|---|---|---|---|
| Achocha | 12 March | 21 April | 12 May |
| Arugula | — | 24 March | sow 14 April |
| Basil | 6 April | 14 May | 4 June |
| Beet | — | 24 March | sow 14 April |
| Bell Pepper | 1 March | 14 May | 4 June |
| Black-eyed Susan | 11 March | — | 12 May |
| Bok Choy | 17 March | 21 April | 12 May |
| Broad bean | — | 24 March | sow 14 April |
| Broccoli | — | 24 March | sow 14 April |
| Brussels Sprouts | 7 February | 24 March | 14 April |
| Cabbage | — | 24 March | sow 14 April |
| Calendula | — | 24 March | sow 14 April |
| Carrot | — | — | sow 14 April |
| Cauliflower | 10 February | 24 March | 14 April |
| Celeriac | 3 February | 21 April | 12 May |
| Celery | 3 February | 21 April | 12 May |
| Celosia | 28 March | 12 May | 2 June |
| Chamomile | — | 24 March | sow 14 April |
| Chayote | 23 January | 21 April | 12 May |
| Chickpea | — | — | sow 14 April |
| Chili Pepper | 15 March | 28 May | 18 June |
| China aster | 23 March | 14 May | 4 June |
| Chives | — | — | sow 14 April |
| Cilantro | — | 24 March | sow 14 April |
| Corn | — | 21 April | sow 12 May |
| Cosmos | 28 March | 12 May | 2 June |
| Cucumber | 2 April | 14 May | 4 June |
| Daikon | — | 24 March | sow 14 April |
| Delphinium | 14 February | — | 14 April |
| Dill | — | 24 March | sow 14 April |
| Eggplant | 5 March | 14 May | 4 June |
| Florence fennel | 7 March | 21 April | 12 May |
| Garden sorrel | — | 24 March | sow 14 April |
| Green Beans | 15 March | 21 April | 12 May |
| Hyssop | — | — | sow 14 April |
| Kale | — | 24 March | sow 14 April |
| Kiwano | 31 March | 2 May | 23 May |
| Kohlrabi | — | 24 March | sow 14 April |
| Leek | 13 January | 24 March | 14 April |
| Lemon balm | — | 24 March | sow 14 April |
| Lettuce | — | 24 March | sow 14 April |
| Lisianthus | 27 December | 24 March | 14 April |
| Lovage | — | — | sow 14 April |
| Luffa | 2 April | 14 May | 4 June |
| Marigold | 10 March | 21 April | 12 May |
| Melon | 23 March | 14 May | 4 June |
| Microgreens | — | 12 May | sow 2 June |
| Moringa | 3 April | 28 May | 18 June |
| Mustard greens | — | 24 March | sow 14 April |
| Napa cabbage | 19 March | 21 April | 12 May |
| Nasturtium | 14 March | 21 April | 12 May |
| Okra | 2 April | 14 May | 4 June |
| Oregano | 23 January | 24 March | 14 April |
| Pansy | 27 January | 24 March | 14 April |
| Parsley | — | 24 March | sow 14 April |
| Parsnip | — | — | sow 14 April |
| Peanut | 7 April | 14 May | 4 June |
| Peas | — | 24 March | sow 14 April |
| Petunia | 12 March | 14 May | 4 June |
| Physalis | 18 March | 2 May | 23 May |
| Pumpkin | 26 March | 2 May | 23 May |
| Purple coneflower | 11 February | — | 14 April |
| Radish | — | — | sow 14 April |
| Sage | 3 February | 24 March | 14 April |
| Snapdragon | 18 January | 24 March | 14 April |
| Spinach | — | 24 March | sow 14 April |
| Stevia | 14 March | 2 May | 23 May |
| Stock | — | 24 March | sow 14 April |
| Sunflower | — | 12 May | sow 2 June |
| Sweet Corn | — | 21 April | sow 12 May |
| Sweet pea | 10 February | 24 March | 14 April |
| Sweet William | — | — | sow 14 April |
| Swiss Chard | — | 24 March | sow 14 April |
| Thyme | — | 24 March | sow 14 April |
| Tomato | 6 March | 2 May | 23 May |
| Turnip | — | 24 March | sow 14 April |
| Watercress | — | 24 March | sow 14 April |
| Watermelon | 12 April | 14 May | 4 June |
| Zinnia | 23 April | 28 May | 18 June |
| Zucchini | 31 March | 2 May | 23 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.
Omsk: weather for the next 7 days
Forecast by Open-Meteo. Nights at or below 0 °C are marked as frost.
Weather in Omsk by month
Average weather in Omsk over 2016–2025: the warmest month is July, the wettest July.
| Month | Day, °C | Night, °C | Rain, mm | Rainy days |
|---|---|---|---|---|
| January | -12.1 | -19.5 | 19 | 6 |
| February | -9.4 | -16.9 | 18 | 6 |
| March | -1.5 | -10.2 | 21 | 7 |
| April | 10.8 | -1 | 30 | 8 |
| May | 18.6 | 6 | 38 | 9 |
| June | 22.8 | 12.3 | 63 | 11 |
| July | 24.7 | 15 | 70 | 12 |
| August | 22.7 | 12.6 | 62 | 11 |
| September | 15.8 | 6.6 | 36 | 8 |
| October | 7 | -0.6 | 37 | 9 |
| November | -3.6 | -9.5 | 33 | 9 |
| December | -9.7 | -16.8 | 26 | 9 |
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
| Crop | Plant around |
|---|---|
| Bearded Iris | 29 August |
| Crocus | 29 August |
| Daffodil | 29 August |
| Garlic | 29 August |
| Hyacinth | 29 August |
| Lily | 29 August |
| Peony | 29 August |
| Saffron | 29 August |
| Tulip | 29 August |
| Wild garlic | 29 August |
A month before the first autumn frost, so the roots grow before winter.