Frost days: all cantons compared
Frost days 2025: the lowest value is in the canton of Ticino (39.9 days per year), the highest in the canton of Obwalden (109 days per year). The full ranking of the 22 cantons with measurements:
Tap a canton.
Days per year with a minimum below 0 °C, mean of the canton’s weather stations below 800 m. Lower means milder winters. (Source: MeteoSwiss)
| # | Canton | Value | Year |
|---|---|---|---|
| 1 | Ticino | 39.9 days per year | 2025 |
| 2 | Vaud | 46.4 days per year | 2025 |
| 3 | Neuchâtel | 46.5 days per year | 2025 |
| 4 | Geneva | 49 days per year | 2025 |
| 5 | Basel-Landschaft | 52 days per year | 2025 |
| 6 | Schwyz | 52.3 days per year | 2025 |
| 7 | Valais | 57.8 days per year | 2025 |
| 8 | Aargau | 63.4 days per year | 2025 |
| 9 | Uri | 66 days per year | 2025 |
| 10 | Glarus | 67 days per year | 2025 |
| 11 | Solothurn | 68 days per year | 2025 |
| 12 | Zug | 70 days per year | 2025 |
| 13 | Jura | 72 days per year | 2025 |
| 14 | Zurich | 74.2 days per year | 2025 |
| 15 | St. Gallen | 80.8 days per year | 2025 |
| 16 | Lucerne | 81.8 days per year | 2025 |
| 17 | Thurgau | 82.3 days per year | 2025 |
| 18 | Schaffhausen | 84.5 days per year | 2025 |
| 19 | Fribourg | 88.5 days per year | 2025 |
| 20 | Bern | 91.3 days per year | 2025 |
| 21 | Grisons | 91.5 days per year | 2025 |
| 22 | Obwalden | 109 days per year | 2025 |
🔍 Verify this figure
| Official source | MeteoSwiss |
| Dataset (archive) | data/climate/climate-days-cantons.json · manifest |
| SHA-256 checksum | 95b864d5ca0e0638813a7dfe… |
| Archive release (immutable) | SLI-2026-10-12.15 |
License: CC BY 4.0 (compilation); underlying figures remain subject to the source’s terms.
Frequently asked questions
Which canton has the lowest Frost days?
The canton of Ticino, at 39.9 days per year.
Which canton has the highest Frost days?
The canton of Obwalden, at 109 days per year.