Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Antarctica - - - - 1.05
± 0.76
2.31
± 1.23
Southern Hemisphere - - 0.81
± 0.24
0.94
± 0.32
1.34
± 0.38
1.15
± 0.38
Global Land 0.43
± 0.18
0.79
± 0.13
0.91
± 0.08
1.11
± 0.03
2.16
± 0.11
2.78
± 0.13

Regional Climate Variability

Difference from Global Land Average ( °C, 95% range )

Smoothing Monthly Annual Five-year Ten-year Twenty-year
± 2.25 ± 0.88 ± 0.52 ± 0.43 ± 0.35

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.36 0.44 0.61 0.72 0.81

Variability in Monthly Means ( °C, 95% range )

Jan Feb Mar Apr May Jun
± 1.51 ± 1.72 ± 1.84 ± 2.29 ± 2.89 ± 2.48
Jul Aug Sep Oct Nov Dec
± 3.13 ± 3.74 ± 2.85 ± 1.66 ± 1.66 ± 1.72

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature