Thank you! What do you track in particular? We're always very happy to hear how helpful our prducts are :)

Hello, and thank you for your question. The precipitation anomaly in meteoblue climate change data represents a deviation from the weekly or yearly mean but is not always calculated simply as the difference between the year mean and the historical mean. The anomaly calculation may include additional statistical methods or reference periods beyond direct subtraction. Furthermore, ERA5 precipitation data incorporates various precipitation types and is influenced by spatial and temporal resolution limitations, which can explain consistent differences such as the 10mm offset you noticed. Updates to datasets, model changes, and reanalysis methods can also contribute to these discrepancies. We hope we were able to answer your questions and wish you pleasant weather with meteoblue.