Frost risk
Last frost in Biella
Median last frost, cautious frost date, and guidance on sowing before or after cold risk in Biella.
Median 0 °C
April 2springCautious 2 °C
April 23springAutumn 2 °C
October 20first frostWhat 0 °C and 2 °C mean
Reference dates
When spring frosts usually fall
- April 20C median
- April 160C cautious
- April 122C median
- April 232C cautious
| indicator | date |
|---|---|
| Median last frost 0 °C | April 2 |
| Cautious last frost 0 °C | April 16 |
| Median last frost 2 °C | April 12 |
| Cautious last frost 2 °C | April 23 |
| Cautious first autumn frost 0 °C | November 2 |
| Cautious first autumn frost 2 °C | October 20 |
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 | April 2 | -0.19 °C |
| 2019 | April 5 | -0.45 °C |
| 2018 | March 24 | -1.46 °C |
| 2017 | April 20 | -1.01 °C |
| 2016 | March 24 | -0.51 °C |
| 2015 | April 7 | -1.87 °C |
| 2014 | March 25 | -2.02 °C |
| 2013 | March 31 | -0.42 °C |
| 2012 | March 10 | -0.61 °C |
| 2011 | March 9 | -2.09 °C |
Frequently asked questions
Which date should I use for sensitive transplants in Biella?
The most cautious date on this page is April 23 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 April 2, while the cautious 2 °C date is April 23. The 2 °C threshold is more cautious for cold nights, inversions, and exposed spots.
Can parts of Biella differ from this date?
No. In Biella, exposure, elevation, wind, and soil can move real risk earlier or later than the representative municipality point.