Roraima

Climate Stripes

Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Roraima	-	-	0.89 ± 0.22	1.08 ± 0.16	1.50 ± 0.33	1.32 ± 0.67
Brazil	-	-	0.87 ± 0.17	1.06 ± 0.18	1.70 ± 0.17	1.50 ± 0.43
South America	-	-	0.86 ± 0.20	1.00 ± 0.16	1.39 ± 0.19	1.07 ± 0.36
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
	± 0.79	± 0.40	± 0.21	± 0.16	± 0.13

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.77	0.91	0.97	0.98	0.99

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

Jan	Feb	Mar	Apr	May	Jun
± 0.97	± 0.99	± 0.96	± 0.82	± 0.72	± 0.60
Jul	Aug	Sep	Oct	Nov	Dec
± 0.67	± 0.61	± 0.75	± 0.73	± 0.79	± 0.76

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature

Change in Diurnal Range