Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
French Guiana - - 0.91
± 0.19
1.15
± 0.14
1.85
± 0.22
2.51
± 1.06
France 0.35
± 0.20
0.61
± 0.17
0.84
± 0.11
1.11
± 0.13
2.60
± 0.21
1.41
± 0.46
South America - - 0.86
± 0.20
1.00
± 0.16
1.39
± 0.19
1.07
± 0.36
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
± 0.72 ± 0.35 ± 0.17 ± 0.13 ± 0.10

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.80 0.93 0.98 0.99 0.99

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

Jan Feb Mar Apr May Jun
± 0.90 ± 0.87 ± 0.84 ± 0.72 ± 0.63 ± 0.62
Jul Aug Sep Oct Nov Dec
± 0.59 ± 0.49 ± 0.62 ± 0.60 ± 0.69 ± 0.76

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature