Yes, I agreed with you, this was just one season, but seldom is colder than this winter (in terms of average temperatures I mean). In terms of Tx is always very mild. The average of Tx < 0ºC is always very poor in spanish cities, even in higher Meseta cities.
Ferreiro you can write to me in Portuguese or Gallego if you like, don't bother with English I understand you perfectly fine! Portuguese dad. so....
Yes...it is typicalyl an interior climate with cold nights and probably a lot of them but you are 10-15 degrees to the south of us and that is notable. For instance, in the second part of february it is more difficult over here to get Tx below zero all day. In Spain, the sun is 10-15 degrees higher up than over here (12-14 degrees above the horizon at 21st of december). Also, the days over here last 7,5 hours. In Spain I guess it is close to 9 hours on the shortest days. Also: Spain is much further away from nearby cold reservoirs like Lapland and NW Russia. La[land is 1500-1800 km from us, it is 3400 km from central Spain.
Another point: low pressure areas tracks are enough to give us freezing weather. They only have to pass south of us and than you're okey. this is even expected next week in some ensembles and we get snow and may Tx below zero.
Also: Tx below zero can occur here from the very start of november to the start of april. In long wointers TX below zero can go up to 50-60 days, not to mention the numerous days with temperatures with just an hour or so above freezing. These are the most severe winters of course.
In short: the only thing that helps the Meseta is it distance to the sea and the higher altitude. But it is not enough. My sister lives in Varese, north of Milano, at 300 m high and she gets a lot more snow and cold weather than anyone in de Meseta below 1000 m. Still: even in northern italy Tx below zero is rare and she really notes that difference with The Netherlands. The snow rarely stays for weeks and that happens over here quite regularly.
Again: The Netherlands is no winterwonderland. I would say: not at all! So Spain below 1000 m isn't either, that is for sure.
BTW: everything is turning white here again. Some snow. Nothing compared to easter 2008 when we had 11 cm....