Sri Lanka

Climate Stripes

Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Sri Lanka	-	0.67 ± 0.16	0.65 ± 0.20	0.80 ± 0.12	1.37 ± 0.28	1.65 ± 0.59
Southern Asia	-	0.73 ± 0.19	0.80 ± 0.18	1.16 ± 0.12	2.29 ± 0.25	3.70 ± 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
	± 0.95	± 0.43	± 0.29	± 0.25	± 0.21

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.73	0.90	0.95	0.96	0.97

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

Jan	Feb	Mar	Apr	May	Jun
± 0.91	± 1.00	± 0.89	± 0.83	± 0.95	± 0.84
Jul	Aug	Sep	Oct	Nov	Dec
± 0.76	± 0.67	± 0.88	± 0.76	± 0.65	± 0.81

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature

Change in Diurnal Range