Climate is an integral of local weather over time and space . If climate change (specifically global warming) does not show up as weather then it does not exist. From The Harvard Crimson:

A student walks down Plympton St. on Monday evening, flanked by growing piles of snow. – Harvard Crimson
As many Harvard schools cancel classes Tuesday for the third time in as many weeks — only its fourth snow day since one in 1978—administrators have begun to consider ways to compensate for lost instructional time. …….
……. Harvard has had only five snow days in the last four decades; before this semester, the only other two were in 2013 and 1978. …..
…….. Between 2013 and 2015, Harvard has seen four of its five snow days in four decades. In 1977, before a snow day in 1978, former Dean of Students Archie C. Epps III joked that, “Harvard University will close only for an act of God, such as the end of the world.”
It wasn’t a joke.
Clearly snow days are to be taken as an Act of God where I take “God” to represent the natural variations in weather (and climate) which are beyond the wit of man to influence. But it does take some imagination for a winter snow storm to be equated to the “end of the world”. A summer snow storm might better qualify!