Regional Climate Change: Hong Kong

Climate Stripes

Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Hong Kong	-	-	0.74 ± 0.20	0.70 ± 0.11	0.83 ± 0.27	1.07 ± 0.51
Guangdong	-	-	0.72 ± 0.20	0.62 ± 0.11	0.78 ± 0.22	1.38 ± 0.59
China	-	-	0.89 ± 0.20	1.12 ± 0.13	2.09 ± 0.23	2.10 ± 0.39
Eastern Asia	-	0.78 ± 0.20	0.93 ± 0.19	1.23 ± 0.13	2.19 ± 0.24	1.64 ± 0.38
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

Temperature Record Months and Years

Seasonal Changes

Regional Climate Variability

Difference from Global Land Average ( °C, 95% range )

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	± 1.75	± 0.65	± 0.37	± 0.30	± 0.23

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.40	0.76	0.90	0.93	0.95

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

Jan	Feb	Mar	Apr	May	Jun
± 2.26	± 2.73	± 2.02	± 1.81	± 1.37	± 1.05
Jul	Aug	Sep	Oct	Nov	Dec
± 0.89	± 0.91	± 1.01	± 1.26	± 1.62	± 1.99

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature

Change in Diurnal Range