Average people don't understand local variability or averages. They hear "global warming" and think that means every place must be hot at once. There's the stellar example of a congress critter bringing a snowball in and claiming that disproved global warming. Now, climate chaos or something like that might be a better way to convey what's in store. Average people need to understand it better as simply energy added to a system making it increasingly unstable and unpredictable.