Global warming provides another example. If the weather somewhere is warmer than usual, that is evidence of global warming; the fact that total global warming in the past century comes to under one degree centigrade is not usually mentioned. If the weather is colder than usual that is either irrelevant or evidence of changing weather patterns due to global warming.
It used to be said that the poor agricultural performance of the Soviet Union was due to worse than average weather—forty straight years of it. No doubt it was true. In a country that big, the weather is always worse than average somewhere.