Climate Change Chart of Bangui, Central African Republic

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +0.31 °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 increase was in November, with a difference of +0.99 °C, while the largest decrease was in July, with a difference of -0.41 °C. These contrasting monthly differences show that the overall mean does not describe every month, and the two reference periods alone do not establish a continuous trend.

Changes in rainfall

Mean daily rainfall, rather than monthly rainfall totals, had an unweighted difference across calendar-month means of -0.21 mm/day in the more recent period. This aggregate describes the average of the monthly differences, not the rainfall difference in every month or a day-weighted annual amount. The largest monthly increase was recorded in July, at a difference of +1.84 mm/day; the largest monthly decrease was in November, at a difference of -2.51 mm/day. These month-specific shifts move in different directions, so the mean difference should not be read as a uniform change throughout the year.

Changes in sunshine duration

Mean daily sunshine duration had an unweighted difference across calendar-month means of -0.17 hours/day compared with the earlier reference period. This is an average of monthly mean differences, not a day-weighted annual measure, and it does not imply the same change in each month. The largest monthly increase occurred in November, with a difference of +0.68 hours/day, while the largest decrease occurred in July, with a difference of -0.87 hours/day. The contrasting results indicate that the aggregate difference masks distinct monthly changes; they do not establish a continuous trend between the reference periods.