Signal de Botrange signal and the house Baraque Michel. Signal de Botrange experiences stronger winds than the centre of Belgium. Average and extreme temperatures are usually lower than at any other place in Belgium: the minimum temperature recorded (-25.6 °C) does not, however, exceed the absolute record (-30.1 °C), observed in the valley of the Lomme, at Rochefort during a temperature inversion. In winter, for three months, on average, the average temperature remains below 0 °C. Rainfall is much greater than most of the rest of the country, at an annual average of 1450 mm compared with 800 mm in Uccle. Rainfall is
Signal de Botrange of cross-country skiing routes. In 1923, the 6 metres Baltia tower was built on the summit to allow visitors to reach an altitude of 700 metres. A stone tower built in 1933/34 by François Fagnoul from Ovifat on the Botrange crowned a steel weather vane with the relieved name " SICCO CAMPO " until World War II. Meanwhile, the spire serves as transmitter of Radio Contact and reaches a de facto height of 718 metres. In November 2013, at the Signal de Botrange, a 50-m high tower with parabolic antennas was agreed to provide data interchange by Microwave transmission between