Then help climate scientists understand past rainfall variations and improve models for future flooding events?
The UK has an amazing repository of rainfall records from the last 200 years, but most of this is handwritten and not that easy to use in the current era. The Rainfall Rescue Project is seeking volunteers to transfer all these old handwritten pages of rainfall data into online spreadsheets.
It’s easy to do a few tens of records a day without getting bored to tears, but I recommend that you choose the option to transcribe local records because it is easier to read the handwritten locations if you recognise the place names!