Climate Change Chart of Madeira, Portugal

Overview of climate changes

Temperature changes

Across calendar months, the mean difference in monthly mean temperature was +0.34 °C, an unweighted comparison of monthly means rather than a day-weighted annual average; it describes the aggregate, not a change in every month. The largest monthly increase was in May, at +0.81 °C, while November had the largest decrease, -0.13 °C. These are changes in monthly mean temperature, not daytime maximum temperatures.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of 0.00 mm/day; this rounded mean is unchanged at the displayed precision, despite month-to-month differences. The largest monthly increase was in June, with a difference of +1.71 mm/day, whereas November recorded the largest decrease, -0.80 mm/day. These figures describe mean daily rainfall, not monthly rainfall totals, and the across-month mean is unweighted rather than day-weighted.

Changes in sunshine duration

Mean daily sunshine duration was lower on the unweighted average across calendar months, with a difference of -0.43 hours/day; this aggregate does not imply that every month had less sunshine. The largest monthly decrease was in April, at -0.68 hours/day. Both the average and the monthly figure refer to mean daily hours, rather than a total sunshine duration for a month.