Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Cameroon - - 0.91
± 0.17
0.59
± 0.17
1.61
± 0.41
2.88
± 1.29
Middle Africa - - 0.88
± 0.18
0.77
± 0.17
1.73
± 0.25
1.78
± 0.79
Africa - - 0.83
± 0.20
0.92
± 0.12
1.99
± 0.21
2.49
± 0.45
Northern Hemisphere - 0.79
± 0.16
0.96
± 0.10
1.19
± 0.05
2.56
± 0.20
3.56
± 0.20
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
± 1.01 ± 0.51 ± 0.35 ± 0.32 ± 0.28

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.63 0.85 0.91 0.92 0.92

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

Jan Feb Mar Apr May Jun
± 1.20 ± 1.13 ± 0.93 ± 0.92 ± 0.80 ± 0.79
Jul Aug Sep Oct Nov Dec
± 0.80 ± 0.72 ± 0.65 ± 0.67 ± 0.78 ± 1.00

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature