Assessment of projected climate change for North America:
All of North America is very likely to warm during this century, and the annual mean warming is likely to exceed the global mean warming in most areas. In northern regions, warming is likely to be largest in winter, and in the southwest USA largest in summer. The lowest winter temperatures are likely to increase more than the average winter temperature in northern North America, and the highest summer temperatures are likely to increase more than the average summer temperature in the southwest USA.
Annual mean precipitation is very likely to increase in Canada and the northeast USA, and likely to decrease in the southwest USA. In southern Canada, precipitation is likely to increase in winter and spring, but decrease in summer.
Snow season length and snow depth are very likely to decrease in most of North America, except in the northernmost part of Canada where maximum snow depth is likely to increase.
One thought on “Weather forecast: Southwest, hotter and drier”
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Among other things, maybe it’s time for Las Vegas and Phoenix to learn about xeriscaping, but I imagine it’ll still be a while until the golf courses return to the desert from which they were carved.
Of course, even in south Florida, some poor souls need to learn about it too.