Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Heard Island and McDonald Islands - - - - 1.49
± 0.60
0.68
± 3.32

Regional Climate Variability

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

Smoothing Monthly Annual Five-year Ten-year Twenty-year
± 1.16 ± 0.57 ± 0.34 ± 0.26 ± 0.15

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.41 0.67 0.87 0.93 0.97

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

Jan Feb Mar Apr May Jun
± 0.86 ± 0.88 ± 0.96 ± 1.14 ± 1.21 ± 1.16
Jul Aug Sep Oct Nov Dec
± 1.30 ± 1.30 ± 1.02 ± 0.92 ± 0.71 ± 0.68

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature