Located above the permanent snow line, the Jungfraujoch is officially the coldest place in Switzerland, although other higher locations with no weather station, for example the top of the nearby Jungfrau and Finsteraarhorn, probably experience a more extreme climate. According to Köppen climate classification, the Jungfraujoch has an alpine climate on the border between tundra climate (ET) and ice cap climate (EF) with long, cold winters lasting most of the year and a brief period during summer where the average daily highs rise above freezing.