Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Asia - 0.82
± 0.18
1.00
± 0.15
1.35
± 0.09
2.57
± 0.24
3.13
± 0.25
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
± 0.90 ± 0.35 ± 0.17 ± 0.13 ± 0.10

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.88 0.95 0.99 0.99 1.00

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

Jan Feb Mar Apr May Jun
± 2.09 ± 2.07 ± 1.87 ± 1.23 ± 0.80 ± 0.69
Jul Aug Sep Oct Nov Dec
± 0.80 ± 0.78 ± 0.91 ± 1.14 ± 1.63 ± 2.02

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature