Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
American Samoa - - - 0.91
± 0.18
1.43
± 0.57
0.73
± 1.41

Regional Climate Variability

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

Smoothing Monthly Annual Five-year Ten-year Twenty-year
± 0.85 ± 0.43 ± 0.26 ± 0.20 ± 0.14

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.68 0.88 0.94 0.96 0.97

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

Jan Feb Mar Apr May Jun
± 0.78 ± 0.76 ± 0.70 ± 0.66 ± 0.61 ± 0.73
Jul Aug Sep Oct Nov Dec
± 0.78 ± 0.65 ± 0.62 ± 0.59 ± 0.62 ± 0.66

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature