Climate Change Chart of Easter Island, Chile

Overview of climate changes

Changes in rainfall

Averaged across calendar months, mean daily rainfall has a difference of -0.49 mm/day. This summarizes the unweighted monthly means; it is not a comparison of day-weighted annual averages or monthly rainfall totals. The largest monthly decrease was in September, with a difference of -1.01 mm/day, whereas the largest monthly increase was in January, with a difference of +0.15 mm/day. These daily-mean differences describe the months identified, rather than establishing a uniform change across the calendar year.

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of -0.11 °C; 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 March, with a difference of +0.32 °C, while the largest monthly decrease was in October, with a difference of -0.44 °C. These are month-specific differences and do not imply that every month's mean moved in the same direction.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, shows a difference of -0.15 hours/day. The result is an unweighted comparison of monthly means, not a day-weighted annual average. The largest monthly decrease was in January, with a difference of -0.41 hours/day; in September, the largest monthly increase was a difference of +0.17 hours/day. These month-specific shifts do not mean sunshine changed in the same direction in every month.