Climate Change Chart of Asunción, Paraguay

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +0.65 °C; this is an unweighted mean of the monthly means, not a day-weighted annual average or a measure of daytime maximum temperatures. The mean difference summarizes the calendar months collectively and does not imply that every month changed in the same direction. The largest monthly increase was in October, with a difference of +1.75 °C. By contrast, May had the largest monthly decrease, a difference of -0.55 °C. These extrema identify the strongest monthly changes in opposite directions, rather than describing all months.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of -0.80 mm/day. This unweighted mean of monthly means summarizes daily rainfall across the calendar months; it is not a monthly rainfall total or a day-weighted annual average, and it does not indicate that rainfall decreased in every month. The largest monthly decrease in mean daily rainfall occurred in February, with a difference of -2.97 mm/day. The largest increase was in November, at a difference of +2.20 mm/day. These contrasting monthly changes show why the overall mean difference should not be read as a uniform shift through the year.

Changes in sunshine duration

For mean daily sunshine duration, the unweighted average of the monthly means across calendar months had a difference of +0.25 hours/day. This summarizes average daily sunshine rather than total sunshine over the year, and the aggregate difference does not mean every month changed alike. The largest increase in mean daily sunshine was in February, with a difference of +0.82 hours/day. The largest monthly decrease occurred in November, at a difference of -0.43 hours/day, showing opposing monthly changes within the comparison.