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.