The average annual temperature is −0.3 °C, annual precipitation 525 millimetres (20.7 in). The warmest month is July with an average temperature of +14.7 °C, coldest February with −13.2 °C. The coldest ever measured temperature was −40.8 °C. Kuusamo is one of the snowiest areas in Finland: the ground is snow-covered for about 200 days a year, from late October until mid-May, with a thickness of 80–90 centimetres (31–35 in).
The center of Kuusamo is located approximately 60 km (37 mi) south of the Arctic Circle, thus polar day and night play a major role. From 14 to 29 June Kuusamo has midnight sun
