Climate Change Chart of Georgetown, Guyana

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +0.76 °C in the more recent period. This is an unweighted mean of the calendar-month means, not a day-weighted annual average, and it describes the aggregate rather than a change shared by every month. The largest monthly increase in mean temperature was in September, with a difference of +0.90 °C. This identifies the strongest increase among the supplied monthly differences; mean temperatures are not daytime maximum temperatures.

Changes in rainfall

Averaged across calendar months, mean daily rainfall has a difference of -0.18 mm/day in the more recent period. This unweighted average describes the aggregate across calendar-month means, not every month's rainfall; the figures are daily means rather than monthly totals. The largest monthly decrease in mean daily rainfall occurred in January, with a difference of -3.64 mm/day. In contrast, the largest monthly increase was in November, with a difference of +1.70 mm/day; these are monthly contrasts, not changes in monthly totals.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, shows a difference of +0.07 hours/day. This is an unweighted mean of the monthly means, not a day-weighted annual average, so it summarizes the calendar months collectively rather than implying the same difference in each one. The largest monthly increase in mean daily sunshine was in January, with a difference of +0.57 hours/day. The largest monthly decrease was in October, with a difference of -0.40 hours/day; these month-specific contrasts sit alongside the smaller aggregate mean difference.