Climate Change Chart of Ecatepec de Morelos, Mexico

Overview of climate changes

Temperature changes

Monthly mean temperature was higher by a mean difference of +1.38 °C averaged across calendar months in the more recent period; this is an unweighted comparison of monthly means, not a day-weighted annual average or a measure of daytime maximum temperatures. The largest monthly increase was in February, with a difference of +2.02 °C. That monthly result identifies the strongest increase, rather than implying that every month warmed by the same amount.

Changes in rainfall

Mean daily rainfall increased by an unweighted mean difference of +0.27 mm/day averaged across calendar months, compared with the earlier reference period; this describes monthly averages, not monthly rainfall totals or a change in every month. The largest monthly increase was in September, at a difference of +1.49 mm/day. By contrast, the largest monthly decrease was in January, with a difference of -0.39 mm/day. These opposing monthly differences show why the overall average should not be read as a uniform shift through the calendar.

Changes in sunshine duration

Mean daily sunshine duration had an unweighted mean difference of -0.09 hours/day averaged across calendar months, indicating a lower average in the more recent period; this is not a day-weighted annual average. The largest monthly decrease occurred in April, with a difference of -0.32 hours/day, while the largest increase was in January, at a difference of +0.21 hours/day. The monthly extremes run in opposite directions, so the average decrease does not mean sunshine duration fell in every month.