| 5yr Avg | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | ||||
| Jan | 100mm | 73mm | 35mm | 191mm | 88mm | 43mm | 143mm | 89mm | 115mm | 214mm | 65mm | |||
| Feb | 111mm | 54mm | 146mm | 97mm | 98mm | 51mm | 161mm | 85mm | 136mm | 66mm | 21mm | |||
| Mar | 54mm | 38mm | 46mm | 53mm | 55mm | 89mm | 25mm | 133mm | 61mm | 84mm | 66mm | |||
| Apr | 101mm | 92mm | 57mm | 184mm | 28mm | 121mm | 115mm | 13mm | 20mm | 11mm | 33mm | |||
| May | 17mm | 57mm | 25mm | 3mm | 0mm | 0mm | 21mm | 28mm | 41mm | 0mm | ||||
| Jun | 10mm | 13mm | 21mm | 10mm | 5mm | 0mm | 0mm | 0mm | 4mm | 3mm | ||||
| Jul | 1mm | 0mm | 7mm | 0mm | 0mm | 0mm | 1mm | 0mm | 12mm | 11mm | ||||
| Aug | 1mm | 0mm | 3mm | 0mm | 1mm | 0mm | 0mm | 0mm | 1mm | 0mm | ||||
| Sep | 9mm | 12mm | 0mm | 11mm | 17mm | 6mm | 19mm | 2mm | 10mm | 45mm | ||||
| Oct | 41mm | 50mm | 30mm | 75mm | 48mm | 3mm | 40mm | 75mm | 57mm | 26mm | ||||
| Nov | 120mm | 67mm | 159mm | 121mm | 163mm | 92mm | 38mm | 113mm | 174mm | 50mm | ||||
| Dec | 152mm | 86mm | 144mm | 222mm | 103mm | 203mm | 99mm | 118mm | 112mm | 89mm | ||||
| Total | 716mm | 257mm | 569mm | 914mm | 711mm | 640mm | 748mm | 538mm | 668mm | 786mm | 409mm |