Norilsk has an extremely harsh climate. Average February temperature is about −35 °C (−31*°F), and July is only about +16 °C (61*°F). Average temperature is approximately −13 °C (9*°F), and temperatures as low as −58 °C (−72*°F) have been recorded. The city is covered with snow for about 250–270*days a year, with snow storms for about 110–130*days. The polar night lasts from December through mid-January, so that Norilsk inhabitants do not see the sun at all for about six weeks. In summer, symmetrically, sun does not set for more than six weeks. Temperatures are known to rise above +25 °C (77*°F) in July.