The thing about weather temperature outliers, however, is that they're highly relevant to the effects resulting from them: an hard freeze at an unexpected time, or a colder seasonal low, can have huge impacts on agriculture, infrastructure (roads, pipes, overhead wires, and structures can be damaged by freezing or ice storms), similarly heat can result in ruined crops, heat deaths, drought, and fires. Diseases, pests, and parasites can also be strongly influenced by weather.

And in terms of the energy surplus (or deficit) represented, these are huge changes being represented. Takes a lot of energy to heat (or cool) the world.