The highest and lowest annual rainfall recorded are and respectively, with maximum on a single day of on 7 October 1982 at the Signal de Botrange. The maximum snowfall recorded at Signal de Botrange was in 1953. The maximum number of frost days (when the temperature remains below ) in a year is reported to be 158 days and the minimum is 70 days. The lowest temperature recorded was in 1942, but it was in 1952 at Baraque-Michel.