The EU-funded Copernicus Climate Change Service (C3S) and Copernicus Atmosphere Monitoring Service (CAMS), both implemented by ECMWF, have drawn up an overview of climate indicators in 2017 with a special emphasis on Europe. The DUACS altimeter sea level products have been used to contribute to this report.

Key findings include that:

• During the last few months of 2017, some land areas of the North Atlantic Arctic experienced monthly temperatures more than 6°C above the 1981–2010 average
• Spring was one of the warmest on record in southwestern Europe, at close to 1.7°C above the 1981–2010 average
• Overall in 2017, the European average temperature was 0.8°C higher than the 1981–2010 average, making the year the fifth or sixth warmest on record, depending on the dataset considered
• In the European sector of the Arctic, sea ice cover was much lower than average during the first three months of the year, and January showed the largest negative anomaly on record.

More information here.