Local Climate Change: 21.70 N, 99.52 W

Country:	Mexico
Latitude:	21.7021 N
Longitude:	99.5192 W
Nearby Cities:	Ciudad Valles, Fernández, Tamazunchale, Cárdenas, Tamuín

Climate Stripes

Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Current Location	-	-	0.64 ± 0.19	0.60 ± 0.19	1.44 ± 0.46	1.69 ± 0.87
Mexico	-	-	0.58 ± 0.17	0.68 ± 0.15	1.58 ± 0.29	1.98 ± 0.55
Central America	-	-	0.63 ± 0.16	0.72 ± 0.13	1.55 ± 0.25	1.49 ± 0.44
North America	-	0.82 ± 0.23	1.02 ± 0.18	1.11 ± 0.11	2.90 ± 0.19	4.72 ± 0.28
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

Local Climate Variabiity

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

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	± 1.70	± 0.71	± 0.44	± 0.36	± 0.28

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.41	0.74	0.86	0.90	0.93

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

Jan	Feb	Mar	Apr	May	Jun
± 1.99	± 1.82	± 1.77	± 1.69	± 1.58	± 1.36
Jul	Aug	Sep	Oct	Nov	Dec
± 1.13	± 1.01	± 1.09	± 1.39	± 1.68	± 1.82

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature

Change in Diurnal Range