| DWD | Deutscher Wetterdienst | Germany | © Deutscher Wetterdienst (DWD), Climate Data Center (CDC) |
| ECCC | Environnement Et Changement Climatique Canada | Canada | © Environment And Climate Change Canada (ECCC) |
| IMGW | Instytut Meteorologii i Gospodarki Wodnej | Poland | © IMGW, Observations |
| NOAA | National Oceanic And Atmospheric Administration | United States Of America | © National Oceanic And Atmospheric Administration (NOAA), Global Historical Climatology Network |
| WSV | Wasserstraßen- und Schifffahrtsverwaltung des Bundes | Germany | © Wasserstraßen- und Schifffahrtsverwaltung des Bundes (WSV), Pegelonline |
| EA | Environment Agency | United Kingdom | © Environment Agency of UK |
| NWS | NOAA National Weather Service | United States Of America | © NOAA NWS (National Weather Service), Observations |
| Eaufrance | Eaufrance | France | © Eaufrance |
| Geosphere | Geosphere Österreich | Austria | © ZAMG, Observations |