Climate Change Chart of Saint Louis, Brazil

Overview of climate changes

Temperature changes

Averaged across calendar months, the difference in monthly mean temperature was +0.10 °C, an unweighted comparison of monthly means rather than a day-weighted annual average or a measure of daytime maximum temperatures. The largest monthly increase was in March, with a difference of +0.83 °C; the largest monthly decrease was in September, at -0.68 °C. These month-specific differences show that the overall average does not describe every month's change.

Changes in rainfall

Averaged across calendar months, mean daily rainfall showed a difference of +0.73 mm/day. This is an unweighted average of monthly means, not a change in monthly totals or a day-weighted annual average. The largest monthly increase in mean daily rainfall occurred in November, at +1.51 mm/day, while the largest monthly decrease was in April, at -0.91 mm/day. These are differences in daily averages for the named months, not totals accumulated over those months.

Changes in sunshine duration

Across calendar months, mean daily sunshine duration had an unweighted mean difference of -0.22 hours/day; this summarizes monthly averages and is not a day-weighted annual measure. The largest monthly decrease was in February, with a difference of -0.76 hours/day in mean daily sunshine duration. This identifies the strongest monthly decrease in the supplied comparison, not a change shared by every month.