Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Melanesia - - - 0.82
± 0.15
1.29
± 0.27
0.72
± 1.47
Oceania - - 0.63
± 0.23
0.93
± 0.08
1.38
± 0.24
0.65
± 0.47
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
± 0.86 ± 0.47 ± 0.31 ± 0.24 ± 0.15

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.65 0.85 0.93 0.96 0.98

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

Jan Feb Mar Apr May Jun
± 0.62 ± 0.63 ± 0.62 ± 0.62 ± 0.63 ± 0.74
Jul Aug Sep Oct Nov Dec
± 0.80 ± 0.75 ± 0.83 ± 0.75 ± 0.62 ± 0.52

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature