GreenlyUkraine: frost dates by city
The average last spring frost and first autumn frost in 23 cities of Ukraine, from ten years of weather. The last spring frost comes earliest in Odesa and latest in Sumy.
| City | Last spring frost | First autumn frost | Frost-free days |
|---|---|---|---|
| Odesa | 28 March | 25 November | 242 days |
| Cherkasy | 30 March | 11 November | 226 days |
| Kherson | 30 March | 17 November | 232 days |
| Mykolaiv | 31 March | 10 November | 224 days |
| Zaporizhzhia | 2 April | 12 November | 224 days |
| Dnipro | 3 April | 8 November | 219 days |
| Kryvyi Rih | 5 April | 7 November | 216 days |
| Kyiv | 5 April | 9 November | 218 days |
| Poltava | 6 April | 23 October | 200 days |
| Uzhhorod | 6 April | 31 October | 208 days |
| Kropyvnytskyi | 7 April | 7 November | 214 days |
| Chernihiv | 11 April | 28 October | 200 days |
| Zhytomyr | 11 April | 20 October | 192 days |
| Lviv | 14 April | 12 November | 212 days |
| Lutsk | 15 April | 21 October | 189 days |
| Vinnytsia | 15 April | 20 October | 188 days |
| Chernivtsi | 17 April | 21 October | 187 days |
| Khmelnytskyi | 18 April | 23 October | 188 days |
| Rivne | 18 April | 16 November | 212 days |
| Ivano-Frankivsk | 21 April | 20 October | 182 days |
| Kharkiv | 21 April | 21 October | 183 days |
| Ternopil | 21 April | 20 October | 182 days |
| Sumy | 22 April | 20 October | 181 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.