Mean rainfall over Mexico does not show any consistent increase or decrease since 1960. A particularly wet autumn in 2004 caused an apparent increasing trend in SON.
The observed maximum 1- and 5-day rainfalls do not show any substantial alteration in magnitude since 1960 in any season, except during SON, when small increasing trends of +0.85 mm and +1.50 mm per decade in 1- and 5-day events, respectively, are seen.
The frequency of hot days and hot nights has increased significantly since 1960 in every season and the frequency of cold days and nights, annually, has decreased significantly since 1960.
Mean annual temperature has increased by 0.6°C since 1960, at a rate of approximately 0.13°C per decade. The rate of increase is most rapid in the dry seasons (MAM and DJF) at a rate of 0.18-0.2°C per decade and slower in the wet seasons (JJA and SON).
Annual Climate Characteristics
Click on the map to view the historical climate chart for that province.