Climate Change Chart of Kigali, Rwanda

Overview of climate changes

Temperature changes

Averaged across calendar months, the difference in monthly mean temperature was +0.44 °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 May, with a difference of +1.02 °C. In contrast, September had the largest monthly decrease, a difference of -0.38 °C.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of -0.02 mm/day. This summarizes the unweighted monthly means; it is not a comparison of monthly rainfall totals, and the overall mean does not imply that every month changed in the same direction. The largest monthly increase in mean daily rainfall occurred in October, at a difference of +1.19 mm/day. The largest decrease was in March, with a difference of -1.01 mm/day; these monthly contrasts show why the overall mean alone does not describe each part of the year.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, had a difference of -0.26 hours/day. This is an unweighted summary of monthly means, rather than a day-weighted annual average or a description of every month's conditions. The largest monthly decrease in mean daily sunshine was in April, with a difference of -0.83 hours/day. The largest monthly increase occurred in May, at a difference of +0.22 hours/day, indicating contrasting monthly differences within the broader average.