Climate Change Chart of Capri, Italy

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +1.64 °C in the more recent period. This is an unweighted mean of the monthly means, rather than a day-weighted annual average, and describes the overall monthly pattern rather than a change in every month; it is also not a measure of daytime maximum temperatures. The largest monthly increase was in December, with a difference of +3.41 °C compared with the earlier reference period.

Changes in rainfall

Mean daily rainfall averaged across calendar months had a difference of -0.01 mm/day in the more recent period. This unweighted summary of monthly means does not imply that daily rainfall shifted by the same amount in every month, and the figures describe daily averages rather than monthly totals. The largest monthly increase was in March, at a difference of +1.65 mm/day; the largest monthly decrease was in October, at a difference of -1.93 mm/day compared with the earlier reference period.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, had a difference of -0.12 hours/day in the more recent period. This unweighted summary describes the combined pattern of monthly means, not an identical change throughout the year. The largest monthly decrease was in March, with a difference of -0.64 hours/day, while the largest monthly increase was in December, with a difference of +0.39 hours/day compared with the earlier reference period.

Changes in snowfall

Mean daily snowfall averaged across calendar months had a difference of -0.18 mm/day in the more recent period. This is an unweighted summary of monthly means, not a monthly total or evidence that every month changed in the same way; small or rounded differences should not be read as showing that snowfall was absent. The largest monthly decrease was in January, at a difference of -1.23 mm/day, whereas the largest monthly increase was in November, at a difference of +0.01 mm/day compared with the earlier reference period.