GreenlyRussia: frost dates by city
The average last spring frost and first autumn frost in 26 cities of Russia, from ten years of weather. The last spring frost comes earliest in Krasnodar and latest in Krasnoyarsk.
| City | Last spring frost | First autumn frost | Frost-free days |
|---|---|---|---|
| Krasnodar | 21 March | 18 November | 242 days |
| Rostov-on-Don | 29 March | 9 November | 225 days |
| Stavropol | 3 April | 1 November | 212 days |
| Volgograd | 3 April | 29 October | 209 days |
| Vladivostok | 8 April | 5 November | 211 days |
| Saratov | 14 April | 26 October | 195 days |
| Samara | 20 April | 21 October | 184 days |
| Voronezh | 21 April | 29 October | 191 days |
| Kazan | 26 April | 13 October | 170 days |
| Kaliningrad | 27 April | 14 November | 201 days |
| Moscow | 29 April | 14 October | 168 days |
| Chelyabinsk | 30 April | 4 October | 157 days |
| Khabarovsk | 30 April | 16 October | 169 days |
| Ufa | 30 April | 1 October | 154 days |
| Nizhny Novgorod | 1 May | 18 October | 170 days |
| Saint Petersburg | 1 May | 20 October | 172 days |
| Tula | 1 May | 15 October | 167 days |
| Barnaul | 3 May | 29 September | 149 days |
| Omsk | 5 May | 28 September | 146 days |
| Perm | 6 May | 2 October | 149 days |
| Yekaterinburg | 9 May | 28 September | 142 days |
| Yaroslavl | 10 May | 10 October | 153 days |
| Irkutsk | 14 May | 30 September | 139 days |
| Tyumen | 14 May | 1 October | 140 days |
| Novosibirsk | 17 May | 28 September | 134 days |
| Krasnoyarsk | 19 May | 27 September | 131 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.