Climate Change Chart of Quito, Ecuador

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +1.07 °C compared with the earlier reference period; this is an unweighted average of the monthly means, not a day-weighted annual figure or a measure of daytime highs. The largest monthly increase occurred in October, with a difference of +1.59 °C. That identifies the strongest increase among the months, rather than describing every month.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of -0.96 mm/day compared with the earlier reference period. This unweighted summary of monthly means describes daily amounts, not monthly rainfall totals, and does not imply the same change in every month. The largest monthly increase was in March, at a difference of +3.69 mm/day, while the largest monthly decrease was in September, at a difference of -4.11 mm/day. These contrasting monthly changes show why the overall mean should not be read as a uniform shift through the calendar.

Changes in sunshine duration

Mean daily sunshine duration increased by a difference of +1.41 hours/day when averaged across calendar months, using an unweighted mean of monthly values rather than a day-weighted annual average. The largest monthly increase was in April, with a difference of +2.04 hours/day. This marks the strongest monthly increase, not a claim that sunshine rose by that amount in every month.

Changes in snowfall

For mean daily snowfall, the unweighted average across calendar months had a difference of 0.00 mm/day at the displayed precision compared with the earlier reference period. This rounded equality does not establish that snowfall was absent or that underlying values were exactly unchanged. The largest monthly decrease was in August, at a difference of -0.03 mm/day; this daily-mean comparison is not a monthly snowfall total.