In my City (Villalba 61.000 inhabitants 880/945masl, NW of Madrid) December of 2008: Average Minimun : 0,1º, (0,8º) Average Maximun: 7,7º, (8º) Average temperature: 3,9º (4,4º) Min: -9,3º Max: 14,1º Frost days (-0º): 18 (average 18 days) Snow Days: 8 (average 3 days) Snow 1cm+: 6 (Average 1,8 days)