Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Senegal - - 0.87
± 0.18
1.02
± 0.18
1.87
± 0.34
1.55
± 0.56
Western Africa - - 0.92
± 0.20
0.86
± 0.13
2.02
± 0.31
3.09
± 0.54
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
± 1.24 ± 0.54 ± 0.28 ± 0.20 ± 0.15

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.54 0.84 0.94 0.97 0.98

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

Jan Feb Mar Apr May Jun
± 1.44 ± 1.37 ± 1.38 ± 1.23 ± 1.11 ± 1.10
Jul Aug Sep Oct Nov Dec
± 0.90 ± 0.93 ± 0.87 ± 0.92 ± 1.14 ± 1.34

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature