Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
New Zealand - - 0.71
± 0.17
0.87
± 0.26
0.97
± 0.24
2.41
± 0.60
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
± 1.67 ± 0.85 ± 0.48 ± 0.36 ± 0.25

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.33 0.62 0.83 0.89 0.93

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

Jan Feb Mar Apr May Jun
± 1.71 ± 1.68 ± 1.47 ± 1.60 ± 1.35 ± 1.30
Jul Aug Sep Oct Nov Dec
± 1.22 ± 1.11 ± 1.14 ± 1.29 ± 1.44 ± 1.82

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature