Climate Change Chart of Monrovia, Liberia

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature was higher by +0.44 °C in the more recent reference period; this unweighted mean describes the shift across monthly averages, not a continuous trend or a change that necessarily applied in every month. The largest monthly increase was in January, with a difference of +0.62 °C in monthly mean temperature compared with the earlier reference period. These are monthly means, not daytime maximum temperatures, so they do not indicate how hot afternoons were.

Changes in rainfall

Mean daily rainfall, averaged across calendar months, was higher by +1.47 mm/day in the more recent period. This describes an aggregate of monthly averages, not monthly rainfall totals or a uniform change in every month. The largest increase in mean daily rainfall occurred in June, with a difference of +7.34 mm/day; by contrast, April had the largest decrease, with a difference of -2.37 mm/day. These daily averages do not show how rain was distributed across individual days.

Changes in sunshine duration

Mean daily sunshine duration was lower by -1.14 hours/day when averaged across calendar months. The largest monthly decrease was in June, with a difference of -2.62 hours/day; neither the overall mean nor this monthly comparison specifies sunshine on any particular day.