Observed and Simulated Annual Mean Temperature: Regional; CMIP3 vs CMIP5
Observed and simulated annual mean temperature (°F) for the six contiguous U.S. NCA regions
for 1901–2000. Observational data are from NCEI’s Climate Divisional Dataset (nClimDiv, black);
simulations are multi-model means from CMIP3 (blue) and CMIP5 (red). Shaded areas represent the
smoothed range of 5th–95th percentile range of the model simulations. Data are smoothed with a 10-year
moving boxcar average. Note: these time series are on unique scales for each region.