Frost risk
Last frost in Bolzano
Median last frost, cautious frost date, and guidance on sowing before or after cold risk in Bolzano.
Median 0 °C
May 30springCautious 2 °C
June 25springAutumn 2 °C
August 28first frostWhat 0 °C and 2 °C mean
Reference dates
When spring frosts usually fall
- May 300C median
- June 120C cautious
- June 202C median
- June 252C cautious
| indicator | date |
|---|---|
| Median last frost 0 °C | May 30 |
| Cautious last frost 0 °C | June 12 |
| Median last frost 2 °C | June 20 |
| Cautious last frost 2 °C | June 25 |
| Cautious first autumn frost 0 °C | September 2 |
| Cautious first autumn frost 2 °C | August 28 |
Last 10 available years
The table shows, for each available year, the last date between January and June when the daily minimum was at or below 0 °C.
| year | last date <= 0 °C | minimum |
|---|---|---|
| 2020 | May 29 | -0.94 °C |
| 2019 | May 31 | -0.35 °C |
| 2018 | May 16 | -0.6 °C |
| 2017 | May 21 | -0.04 °C |
| 2016 | May 24 | -1.58 °C |
| 2015 | May 27 | -1.94 °C |
| 2014 | May 31 | -1.9 °C |
| 2013 | June 4 | -0.21 °C |
| 2012 | June 5 | -0.01 °C |
| 2011 | May 17 | -1.76 °C |
Frequently asked questions
What is the cautious garden date for Bolzano?
The most cautious date on this page is June 25 on the 2 °C threshold. For sensitive crops, use it as the reference before moving sowing or transplanting earlier.
Why also look at the 2 °C threshold?
The median 0 °C date is May 30, while the cautious 2 °C date is June 25. The 2 °C threshold is more cautious for cold nights, inversions, and exposed spots.
How should I adapt the frost date inside Bolzano?
No. In Bolzano, exposure, elevation, wind, and soil can move real risk earlier or later than the representative municipality point.