Poland has a temperate changeable climate. Spring starts in March with temperatures varying from the mid 30's to the low 60's F (-1 to -15 C), until about May or June. July is the hottest month, but the rest of the summer is also quite warm with temperatures ranging from the mid 70's into the low 90's F (21 to 32 C). Initially warm and balmy, September marks the beginning of Poland's autumn. Thereafter, the days become more damp and foggy until December, when winter arrives and the temperature drops to a few degrees below zero. Characterised by abundant snowfall, Poland's winter season caters for winter sports of all types.