Frost risk
Last frost in Bologna
Median last frost, cautious frost date, and guidance on sowing before or after cold risk in Bologna.
Median 0 °C
March 19springCautious 2 °C
April 14springAutumn 2 °C
October 30first frostWhat 0 °C and 2 °C mean
Reference dates
When spring frosts usually fall
- March 190C median
- April 10C cautious
- April 22C median
- April 142C cautious
| indicator | date |
|---|---|
| Median last frost 0 °C | March 19 |
| Cautious last frost 0 °C | April 1 |
| Median last frost 2 °C | April 2 |
| Cautious last frost 2 °C | April 14 |
| Cautious first autumn frost 0 °C | November 16 |
| Cautious first autumn frost 2 °C | October 30 |
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 1 | -1.95 °C |
| 2019 | February 24 | -3.58 °C |
| 2018 | March 24 | -0.51 °C |
| 2017 | February 20 | -0.67 °C |
| 2016 | March 4 | -0.66 °C |
| 2015 | March 9 | -0.26 °C |
| 2014 | January 29 | -2.15 °C |
| 2013 | March 28 | -0.05 °C |
| 2012 | April 9 | -0.14 °C |
| 2011 | March 21 | -0.31 °C |
Frequently asked questions
What is the cautious garden date for Bologna?
The most cautious date on this page is April 14 on the 2 °C threshold. For sensitive crops, use it as the reference before moving sowing or transplanting earlier.
What is the difference between 0 °C and 2 °C in Bologna?
The median 0 °C date is March 19, while the cautious 2 °C date is April 14. The 2 °C threshold is more cautious for cold nights, inversions, and exposed spots.
Can parts of Bologna differ from this date?
No. In Bologna, exposure, elevation, wind, and soil can move real risk earlier or later than the representative municipality point.