Climate Change Chart of Samaná , Dominican Republic

Overview of climate changes

Changes in rainfall

Mean daily rainfall was lower on average across calendar months in the more recent period, with a difference of -1.33 mm/day compared with the earlier reference period. This is an unweighted comparison of monthly means, not a day-weighted annual average or a monthly rainfall total, and it does not imply that rainfall decreased in every month. The largest monthly decrease was in May, with a difference of -4.26 mm/day. By contrast, November had the largest monthly increase, a difference of +0.59 mm/day, showing that the direction of the monthly comparison was not uniform.

Temperature changes

Monthly mean temperature was higher on average across calendar months in the more recent period, with a difference of +1.17 °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 occurred in January, at a difference of +1.56 °C; that identifies the strongest increase among the reported monthly differences, not a change applying to every month.

Changes in sunshine duration

Mean daily sunshine duration shows little difference across calendar months on average: its unweighted mean difference was -0.01 hours/day compared with the earlier reference period. This describes the average of monthly means, not a day-weighted annual figure, and the small rounded difference should not be read as evidence that every month was unchanged. Monthly differences varied: the largest increase was in June, at a difference of +0.47 hours/day, while the largest decrease was in November, at a difference of -0.31 hours/day. These are mean daily hours, not total sunshine hours for either month.