Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Ireland 0.35
± 0.26
0.50
± 0.23
0.64
± 0.19
0.71
± 0.33
2.03
± 0.36
1.04
± 0.53
Europe 0.37
± 0.21
0.63
± 0.15
0.88
± 0.08
1.09
± 0.10
2.69
± 0.23
2.94
± 0.26
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
± 2.27 ± 0.89 ± 0.48 ± 0.38 ± 0.32

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.39 0.64 0.85 0.90 0.91

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

Jan Feb Mar Apr May Jun
± 2.71 ± 2.69 ± 2.19 ± 1.84 ± 1.75 ± 1.68
Jul Aug Sep Oct Nov Dec
± 1.70 ± 1.60 ± 1.61 ± 2.07 ± 2.05 ± 2.59

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature