| WMO/ICAO ID | Name | MAE | RMSE | BIAS | maxE | Min. Error | Cases |
|---|---|---|---|---|---|---|---|
| Europe | 5.24 | 7.16 | 0.03 | 25.3 | -24.8 | 3186 | |
| Austria | 5.89 | 7.87 | -1.34 | 16.4 | -20.4 | 110 | |
| Czech Republic | 7.03 | 9.15 | -0.44 | 17.3 | -22.4 | 66 | |
| Denmark | 3.20 | 4.22 | -1.07 | 6.7 | -11.2 | 22 | |
| France | 4.99 | 6.61 | 1.49 | 17.7 | -17.9 | 481 | |
| Germany | 6.24 | 8.69 | -0.52 | 25.3 | -24.1 | 616 | |
| Guernsey | 5.07 | 6.57 | 2.37 | 13.6 | -11.4 | 22 | |
| Hungary | 6.43 | 8.58 | -0.70 | 16.5 | -19.9 | 22 | |
| Ireland | 3.83 | 4.56 | 1.13 | 8.6 | -8.7 | 22 | |
| Isle of Man | 4.02 | 5.31 | 0.22 | 12.1 | -11.5 | 22 | |
| Jersey | 4.92 | 6.54 | 2.49 | 13.3 | -10.3 | 22 | |
| Netherlands | 5.18 | 7.40 | -0.75 | 18.5 | -19.9 | 350 | |
| Norway | 4.19 | 4.89 | -1.53 | 11.0 | -7.3 | 22 | |
| Poland | 7.74 | 9.91 | -2.51 | 13.0 | -24.8 | 88 | |
| Spain | 2.15 | 2.81 | -0.49 | 7.7 | -7.6 | 66 | |
| Sweden | 2.93 | 3.71 | -1.78 | 3.2 | -9.8 | 22 | |
| Ukraine | 6.19 | 7.90 | -0.37 | 17.3 | -21.0 | 66 | |
| United Kingdom | 4.75 | 6.23 | 0.33 | 23.2 | -18.3 | 1167 |