21 10 Kazan, Russia -6 -12 32 24 Kyiv, Ukraine 0 -5Average daily temperatures in December High °FLow °FCityHigh °CLow °C 42 34 Leeds, United Kingdom 6 1 44 35 Lille, France 6 2 59 49 Lisbon, Portugal 15 10 38 29 Ljubljana, Slovenia 3 -2 47 38 London, United Kingdom 8...