Climate Change Chart of Puerto Iguazu, Argentina

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +0.37 °C between the reference periods; this unweighted mean of monthly means is not a day-weighted annual average or a measure of daytime maximum temperatures. The clearest monthly contrasts were in October, with a difference of +1.15 °C, and May, with a difference of -0.76 °C. These identify the largest monthly increase and decrease, respectively, rather than describing every month.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of -0.47 mm/day. This is an unweighted comparison of monthly means, not a day-weighted annual average or a change in monthly rainfall totals. The largest monthly increase was in March, at a difference of +1.14 mm/day, while July had the largest monthly decrease, at a difference of -1.31 mm/day. These monthly mean daily amounts describe average conditions, not the variability of rainfall from day to day.

Changes in sunshine duration

Across calendar months, mean daily sunshine duration had an unweighted mean difference of +0.33 hours/day; this summarizes the monthly means rather than a day-weighted annual average. Monthly differences were most pronounced in July, with a difference of +0.86 hours/day, and November, with a difference of -0.42 hours/day. These mark the largest increase and decrease in mean daily sunshine duration, not a uniform change across all months.