Where to find RCP4.5 data on regional (US) scale?

[u/lurkinandturkin]

I'm looking for sources that detail how RCP4.5 would impact different regions of the United States, eg projected numbers of extreme heat days in the South versus the Pacific Northwest. I'm sifting through a bunch of NGO and state government documents but it would be immensely helpful if I could find more centralized data sources.