| Year | Average annual precipitation/4 years |
| 1990 | 49.93 |
| 1993 | 71.0675 |
| 1996 | 60.4775 |
| 1999 | 61.4375 |
| 2002 | 58.8425 |
| 2005 | 62.1225 |
| 2008 | 54.8325 |
| 2011 | 48.345 |
| 2014 | 44.0425 |
| 2017 | 54.2475 |
| 2019 | 53.24667 |