Year with frost | Strong frost | ESNO event |
1964 |
| + |
1972 | + |
|
1973 |
|
|
1982 | + | + |
1989 | + |
|
1992 |
| + |
1993 |
| + |
2004 | + | + |
2005 |
| + |
2008 |
|
|
2010 | + | + |
2014 |
|
|
2015 |
|
|