| WMO/ICAO ID | Name | MAE | RMSE | BIAS | maxE | Min. Error | Cases |
|---|---|---|---|---|---|---|---|
| Europe | 5.03 | 6.98 | -0.32 | 22.9 | -23.9 | 3181 | |
| Austria | 6.10 | 7.95 | -0.97 | 15.2 | -22.3 | 110 | |
| Czech Republic | 6.61 | 8.91 | -1.70 | 15.3 | -22.8 | 66 | |
| Denmark | 3.20 | 4.21 | -1.91 | 6.6 | -11.2 | 22 | |
| France | 4.99 | 6.85 | 0.95 | 18.9 | -22.6 | 483 | |
| Germany | 5.92 | 8.25 | -0.58 | 22.9 | -23.9 | 616 | |
| Guernsey | 4.69 | 6.41 | 1.60 | 14.1 | -12.5 | 22 | |
| Hungary | 7.02 | 8.91 | -1.41 | 15.7 | -20.3 | 21 | |
| Ireland | 3.52 | 4.53 | 0.65 | 11.2 | -10.9 | 22 | |
| Isle of Man | 3.64 | 5.06 | 0.35 | 11.3 | -10.2 | 22 | |
| Jersey | 4.90 | 6.78 | 1.65 | 13.9 | -12.5 | 22 | |
| Netherlands | 5.16 | 7.36 | -1.34 | 18.1 | -19.7 | 350 | |
| Norway | 3.92 | 4.70 | -1.62 | 11.5 | -7.3 | 22 | |
| Poland | 6.39 | 8.36 | -3.08 | 12.6 | -23.1 | 88 | |
| Spain | 2.28 | 2.86 | -1.33 | 4.0 | -8.2 | 66 | |
| Sweden | 3.10 | 3.88 | -1.38 | 4.7 | -9.7 | 22 | |
| Ukraine | 5.53 | 6.99 | -0.31 | 14.9 | -17.8 | 66 | |
| United Kingdom | 4.49 | 6.13 | -0.02 | 16.9 | -18.2 | 1161 |