Climate Change Chart of Cartagena, Colombia

Overview of climate changes

Changes in rainfall

Averaged across calendar months, mean daily rainfall shows a difference of -0.73 mm/day. This unweighted average of monthly means summarizes the comparison across calendar months; it is not a day-weighted annual average, a monthly total, or evidence that rainfall decreased in every month. The most pronounced monthly decrease was in October, with a difference of -2.72 mm/day in mean daily rainfall. This is a daily average, not a total for the month. By contrast, March had the largest monthly increase, with a difference of +0.24 mm/day. The opposing monthly changes show why the overall mean should not be read as describing each month's rainfall.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, has a difference of -0.26 hours/day. This is an unweighted mean of monthly means, not a day-weighted annual average or a statement about every month. The largest monthly decrease occurred in August, with a difference of -0.71 hours/day in mean daily sunshine. The largest increase was in December, where the difference was +0.29 hours/day; together, these monthly extremes illustrate variation around the overall average without implying a continuous trend.

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +0.95 °C; this is an unweighted mean of monthly means, not a day-weighted annual average or a measure of daytime maximum temperatures. The largest monthly increase was in May, with a difference of +1.21 °C. This identifies the strongest increase among the monthly means, rather than describing every month or a continuous change between the reference periods.