Climate Change Chart of Montevideo, Uruguay

Overview of climate changes

Temperature changes

Across calendar months, monthly mean temperature shows an average difference of +0.34 °C in the more recent reference period; this is an unweighted mean of monthly averages, not a day-weighted annual figure or a measure of daytime highs. The largest monthly increase was in August, with a difference of +1.06 °C. The largest monthly decrease was in February, with a difference of -0.44 °C. These extrema identify the strongest monthly changes, not a uniform shift in every month, and monthly means do not describe day-to-day conditions.

Changes in rainfall

Mean daily rainfall averaged across calendar months increased by +0.33 mm/day; this is a change in daily averages, not monthly rainfall totals. The largest monthly increase occurred in July, with a difference of +1.10 mm/day, while the largest decrease was in September, with a difference of -0.56 mm/day. These monthly contrasts do not show how rainfall was distributed among individual days or how often rain occurred.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months increased by +0.19 hours/day. The largest monthly increase was in June, with a difference of +0.98 hours/day, whereas the largest decrease was in January, with a difference of -0.54 hours/day. These are changes in average daily hours, not a guarantee of sunshine on any particular day.