Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Ethiopia - - - 0.98
± 0.30
2.19
± 0.25
4.00
± 0.97
Eastern Africa - - - 0.97
± 0.15
1.93
± 0.20
1.83
± 0.65
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
± 0.96 ± 0.43 ± 0.24 ± 0.21 ± 0.18

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.62 0.88 0.97 0.98 0.99

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

Jan Feb Mar Apr May Jun
± 0.91 ± 0.98 ± 0.94 ± 0.97 ± 0.84 ± 0.68
Jul Aug Sep Oct Nov Dec
± 0.83 ± 0.74 ± 0.70 ± 0.72 ± 0.77 ± 0.83

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature