Wettest January in a decade 01/02/2021 Facebook THE summer was the wettest Hamilton has experienced in a decade, with 134.2 millimetres of rain falling from December to February. Photo: LAUREN HAY. Ash Bolt IT has been a wet start to 2021 for Hamilton, with the town recording its highest January rainfall in a decade. Subscribe or Login to see the rest of the content. Username Password Remember Me Forgot Password