Climate Change Chart of Comodoro Rivadavia, Argentina

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +1.65 °C in the more recent period; this is an unweighted mean of monthly means, not a day-weighted annual average or a measure of daytime maximum temperatures. The largest monthly increases were tied between January / June, each with a difference of +1.96 °C. These figures describe the comparison between reference periods, not a continuous change or a uniform shift in every month.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, had a difference of -0.22 hours/day in the more recent period. This is an unweighted mean of monthly means, rather than a day-weighted annual average. The largest monthly increase occurred in June, with a difference of +0.18 hours/day, whereas September had the largest decrease, at -0.51 hours/day. The overall mean therefore summarizes the monthly comparison and does not imply the same change in each month.

Changes in rainfall

Averaged across calendar months, mean daily rainfall increased by +0.08 mm/day; this unweighted comparison of monthly means is not a day-weighted annual average, and the values describe daily means rather than monthly totals. The largest monthly increase was in September, at +0.41 mm/day, while the largest monthly decrease was in January, with a difference of -0.24 mm/day. These contrasting monthly changes show why the mean difference should not be read as applying to every month.

Changes in snowfall

Mean daily snowfall averaged across calendar months had a difference of -0.38 mm/day; this unweighted average of monthly means is not a day-weighted annual average, and the figures are daily means rather than monthly totals. The largest monthly decrease was in June, with a difference of -2.09 mm/day. In contrast, October recorded the largest monthly increase, at +0.14 mm/day. The mean summarizes the periods across calendar months and does not indicate that every month changed by the same amount.