Climate Change Chart of Dakar, Senegal

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of -0.42 °C compared with the earlier reference period; this is an unweighted mean of monthly means, not a day-weighted annual average or a measure of daytime maximum temperatures. The largest monthly decrease was in March, with a difference of -2.02 °C, while October had the largest monthly increase, at +0.88 °C. These are the strongest reported monthly changes in opposite directions, not evidence that temperatures changed steadily between the reference periods.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of -0.36 mm/day. This is an unweighted comparison of monthly means, not a day-weighted annual average; the rainfall figures describe mean daily amounts rather than monthly totals. The largest monthly decrease occurred in August, with a difference of -1.71 mm/day. In contrast, January recorded the largest monthly increase, at +0.02 mm/day; these selected changes show that the monthly differences were not uniform.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months had a difference of -0.35 hours/day compared with the earlier period. This is an unweighted mean across monthly averages, rather than a day-weighted annual figure. The largest monthly decrease in mean daily sunshine was in July, with a difference of -0.92 hours/day. This marks the strongest reported monthly reduction, not a continuous change across the interval.