| Other Years | |||||||||||||
| 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 |
| Day | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 1 | 0.9 | 0.0 | 7.0 | 8.7 | 10.1 | 12.4 | 4.6 | 1.2 | 4.3 | 7.0 | 2.2 | 0.9 |
| 2 | 0.2 | 0.1 | 4.2 | 10.8 | 12.9 | 6.0 | 3.1 | 1.8 | 2.4 | 0.2 | 3.3 | 0.6 |
| 3 | 4.6 | 3.4 | 2.0 | 7.7 | 0.9 | 12.3 | 0.9 | 0.0 | 6.7 | 4.4 | 1.7 | 0.0 |
| 4 | 4.6 | 1.2 | 0.0 | 11.1 | 9.5 | 13.8 | 1.3 | 9.2 | 3.3 | 5.7 | 2.6 | 1.5 |
| 5 | 5.1 | 0.5 | 3.0 | 5.6 | 5.8 | 0.1 | 2.2 | 0.5 | 0.8 | 4.4 | 5.3 | 3.1 |
| 6 | 2.5 | 2.4 | 4.4 | 5.5 | 6.4 | 3.6 | 4.5 | 6.3 | 11.9 | 0.3 | 2.2 | 2.4 |
| 7 | 6.6 | 0.7 | 8.1 | 7.4 | 6.5 | 8.6 | 4.6 | 0.0 | 7.4 | 1.4 | 2.6 | 1.3 |
| 8 | 3.0 | 7.4 | 8.6 | 5.0 | 0.0 | 8.0 | 1.3 | 2.0 | 0.1 | 2.2 | 0.1 | 2.1 |
| 9 | 1.8 | 0.0 | 4.6 | 2.3 | 1.4 | 0.0 | 0.0 | 3.0 | 0.9 | 1.3 | 0.1 | 0.0 |
| 10 | 2.4 | 0.8 | 0.0 | 8.0 | 6.0 | 0.0 | 5.7 | 9.2 | 0.0 | 4.7 | 0.0 | 0.9 |
| 11 | 0.0 | 0.0 | 4.7 | 10.8 | 5.1 | 0.0 | 0.0 | 0.0 | 9.7 | 8.0 | 0.3 | 0.0 |
| 12 | 0.0 | 3.3 | 1.1 | 8.9 | 5.4 | 11.4 | 5.7 | 5.9 | 0.0 | 3.2 | 0.1 | 0.0 |
| 13 | 0.0 | 0.1 | 3.8 | 9.7 | 11.8 | 15.1 | 2.3 | 2.4 | 0.1 | 10.0 | 0.0 | 0.0 |
| 14 | 0.0 | 0.0 | 5.1 | 9.1 | 5.7 | 2.4 | 5.0 | 0.9 | 8.8 | 7.3 | 0.0 | 0.0 |
| 15 | 0.7 | 1.1 | 0.6 | 12.4 | 2.2 | 11.8 | 7.4 | 0.1 | 8.8 | 3.9 | 0.0 | 0.0 |
| 16 | 0.0 | 2.4 | 1.7 | 8.2 | 3.1 | 0.0 | 13.6 | 1.0 | 5.7 | 5.8 | 0.0 | 6.6 |
| 17 | 2.9 | 0.0 | 8.0 | 6.2 | 6.6 | 11.4 | 13.7 | 0.2 | 0.0 | 3.5 | 4.1 | 0.0 |
| 18 | 0.0 | 5.2 | 5.8 | 5.6 | 2.1 | 14.0 | 14.2 | 0.3 | 1.3 | 0.0 | 0.1 | 0.0 |
| 19 | 0.0 | 0.0 | 0.2 | 1.1 | 8.1 | 6.6 | 13.9 | 0.2 | 0.0 | 0.0 | 0.0 | 1.0 |
| 20 | 0.0 | 0.0 | 0.0 | 10.2 | 7.4 | 0.5 | 13.3 | 0.0 | 9.6 | 2.6 | 0.1 | 0.0 |
| 21 | 0.4 | 0.0 | 0.0 | 7.5 | 0.0 | 0.5 | 13.6 | 5.8 | 10.1 | 4.7 | 2.9 | 0.0 |
| 22 | 3.4 | 7.7 | 0.6 | 13.0 | 9.8 | 14.1 | 12.0 | 7.7 | 0.0 | 0.0 | 0.0 | 0.0 |
| 23 | 5.0 | 0.0 | 8.1 | 12.0 | 0.3 | 10.6 | 0.3 | 7.0 | 0.0 | 0.0 | 6.7 | 2.0 |
| 24 | 1.5 | 0.0 | 7.6 | 10.8 | 7.7 | 3.3 | 1.4 | 11.6 | 2.5 | 2.8 | 3.4 | 0.3 |
| 25 | 6.7 | 7.7 | 6.6 | 13.3 | 1.3 | 5.4 | 8.1 | 12.0 | 0.4 | 2.9 | 3.7 | 0.0 |
| 26 | 0.0 | 6.9 | 4.6 | 13.5 | 1.2 | 3.5 | 0.6 | 11.9 | 0.9 | 0.0 | 1.2 | 2.5 |
| 27 | 0.0 | 9.4 | 3.7 | 9.1 | 3.9 | 0.0 | 1.2 | 10.0 | 8.0 | 0.0 | 1.6 | 0.0 |
| 28 | 0.2 | 10.2 | 0.0 | 2.5 | 0.0 | 4.2 | 8.1 | 10.7 | 0.2 | 0.0 | 0.0 | 0.2 |
| 29 | 5.3 | 8.1 | 4.8 | 4.3 | 0.6 | 0.1 | 12.6 | 7.4 | 4.0 | 0.0 | 0.0 | |
| 30 | 0.0 | 4.6 | 13.1 | 13.1 | 11.1 | 4.7 | 5.7 | 0.0 | 6.0 | 0.0 | 0.0 | |
| 31 | 0.0 | 3.4 | 13.4 | 9.9 | 0.3 | 3.9 | 0.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Max | 6.7 | 10.2 | 8.6 | 13.5 | 13.4 | 15.1 | 14.2 | 12.6 | 11.9 | 10.0 | 6.7 | 6.6 |
| Average | 1.9 | 2.5 | 3.9 | 8.5 | 5.5 | 6.4 | 5.7 | 4.5 | 3.7 | 3.2 | 1.5 | 0.8 |
| Min | 0.0 | 0.0 | 0.0 | 1.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Total | 57.8 | 70.5 | 120.2 | 253.9 | 172.0 | 191.3 | 177.3 | 139.5 | 111.3 | 100.2 | 44.3 | 25.4 |
