Talking about Ojmjakon involves talking about the cradle of the cold, at least one of the few cradles of the planet. It is known that the -71.2°C is there, like a record, but probably won’t be satisfactorily demonstrate.
I expose a graph below, courtesy of forum collegue (rs), very involved in monitoring global temperatures, which shows us the detail of the number of days (since 1943) per year that Ojmjakon has reached (even exceeded) the -60ºC. As seen at first sight, and within natural variability, the powerful years to achieve this figure are from some time ago, with the decade 1985-95 as the least conducive to these rigors. In recent years, since 2000, seems to appear the 6 again, not with the frequency of periods that are obvious in the graph, but not staying at an impossible figure as in the aforementioned decade.

Below, temperature record of the last two winters (more…)