Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Cuba - 0.57
± 0.31
0.71
± 0.24
0.87
± 0.14
1.46
± 0.25
0.02
± 0.52
Caribbean - 0.61
± 0.28
0.76
± 0.22
0.96
± 0.13
1.54
± 0.25
0.73
± 0.56
North America - 0.82
± 0.23
1.02
± 0.18
1.11
± 0.11
2.90
± 0.19
4.72
± 0.28
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
± 1.35 ± 0.59 ± 0.32 ± 0.24 ± 0.17

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.48 0.80 0.94 0.97 0.99

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

Jan Feb Mar Apr May Jun
± 1.65 ± 1.54 ± 1.34 ± 1.11 ± 0.91 ± 0.79
Jul Aug Sep Oct Nov Dec
± 0.69 ± 0.67 ± 0.72 ± 0.84 ± 1.32 ± 1.70

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature