Research Article
Snowfall in the Northwest Iberian Peninsula: Synoptic Circulation Patterns and Their Influence on Snow Day Trends
Table 1
Average NAO index on heavy snow events, by cluster and station.
| Cluster | 1 | 2 | 3 | 4 |
| Ávila | −0.30 | −1.58 | 0.44 | −0.79 | Burgos | 0.04 | −0.12 | 0.06 | −0.58 | León | −0.22 | −0.08 | −0.50 | −1.23 | Palencia | N.A. | −0.72 | N.A. | −0.65 | Ponferrada | −0.82 | −0.34 | −0.97 | −1.39 | Salamanca | −0.06 |
−0.26 | −0.09 | −1.53 | Segovia | −0.83 | 0.22 | −0.37 | −0.95 | Soria | −0.17 | −0.18 | 0.30 | −0.80 | Valladolid | N.A. | −0.28 | −0.09 | −1.70 | Zamora | N.A. | −0.10 | −0.75 | N.A. | Total | −0.15 | −0.05 | −0.05 | −0.88 |
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