5. Flora and fauna The climate of the upland differs significantly from the surrounding area. The snowpack covers the area for 180 days a year and the rainy season lasts from April until September. Annual precipitation varies between 650-700 mm, higher than in surrounding regions, the median temperature is lower, from 0.5 to 1.0°C. Average temperature is 19°C in summer and -3°C in winter. There are a number of rivers that originate from the Kraków-Częstochowa Upland, among them the Warta , Biała Przemsza, Pilica , Dłubnia, Szreniawa, Prądnik, Wiercica and Rudawa . Apart from a diversity of plant and animal species, one can find a unique cultural landscape with archeological objects and relics of ancient inhabitation, with a vast collection of artifacts. The earliest settlement in the area dates to the Paleolithic period, approximately 120,000 years ago. The region is rich in flint , which attracted early humans . Flora and fauna
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7. The Polish Jura Chain consists of a hilly landscape with Jurassic limestone rocks, cliffs, valleys and vast l li mestone formations, featuring some 220 caves. The relief of the upland developed since the Paleogene , under climatic conditions changing considerably. Its main component is a peneplain , crowned by monadnockc , rocky masses that resisted erosion, generated as hard rock on Late Jurassic buildup surrounded by less resistant bedded limestone of the same age. The Polish Jura Chain is visited by roughly 400,000 visitors a year. Part of it belongs to the Ojców National Park , the smallest of Poland's twenty national parks , ranking among the most attractive recreational areas of the country.
