Annual average global mean data derived from the MSU Lower Troposphere T temperature product. The "global mean" is computed for latitudes 70S to 82.5 N. Original Data Source: http://www.remss.com/pub/msu/monthly_time_series/ This is the microwave satellite lower tropospheric (near-surface) temperature product. year T70S82.5N 1.979500e+03 -1.418333e-01 1.980500e+03 1.700000e-02 1.981500e+03 1.075000e-02 1.982500e+03 -2.028333e-01 1.983500e+03 2.733333e-02 1.984500e+03 -2.552500e-01 1.985500e+03 -2.830833e-01 1.986500e+03 -1.628333e-01 1.987500e+03 1.293333e-01 1.988500e+03 8.883333e-02 1.989500e+03 -1.195833e-01 1.990500e+03 5.550000e-02 1.991500e+03 1.006667e-01 1.992500e+03 -1.609167e-01 1.993500e+03 -9.850000e-02 1.994500e+03 4.391667e-02 1.995500e+03 1.866667e-01 1.996500e+03 7.858333e-02 1.997500e+03 1.095833e-01 1.998500e+03 5.766667e-01 1.999500e+03 8.633333e-02 2.000500e+03 7.683333e-02 2.001500e+03 2.382500e-01 2.002500e+03 3.540833e-01 2.003500e+03 3.535000e-01 2.004500e+03 2.535000e-01 2.005500e+03 3.740000e-01 2.006500e+03 2.857500e-01