Climate Change Chart of Curitiba, Brazil

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +0.80 °C 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 December, with a difference of +1.48 °C. This identifies the strongest increase among the reported monthly changes, rather than implying the same increase in every month or a continuous trend between the reference periods.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of -0.32 mm/day in the more recent period. This is an unweighted comparison of monthly means, and the measure describes daily averages rather than monthly rainfall totals. The largest monthly increase occurred in June, with a difference of +1.38 mm/day in mean daily rainfall. By contrast, February had the largest monthly decrease, a difference of -1.58 mm/day. These monthly extremes show that the overall mean difference does not describe every month’s change.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months had a difference of +0.28 hours/day in the more recent period. The figure is an unweighted mean of monthly averages, not a day-weighted annual average. The largest monthly increase was recorded in July, with a difference of +1.43 hours/day in mean daily sunshine. In November, the largest monthly decrease was a difference of -0.62 hours/day. These are changes in daily averages for the specified months, not evidence of a continuous shift between the reference periods.