Climate Change Chart of Milan, Italy

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +1.72 °C compared with the earlier reference period. This is an unweighted comparison of the calendar-month means, not a day-weighted annual average, and it describes mean temperatures rather than daytime highs. The largest monthly increase was in January, with a difference of +3.45 °C. This identifies the strongest reported monthly increase, not a uniform change across all months.

Changes in rainfall

Mean daily rainfall, averaged across calendar months, had a difference of +0.83 mm/day in the more recent period. The mean is unweighted across calendar-month means, and the figures describe daily amounts rather than monthly rainfall totals. The largest monthly increase was in November, where mean daily rainfall showed a difference of +1.92 mm/day. That monthly result highlights one part of the comparison and does not imply the same change in every month.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months shows a difference of -0.45 hours/day compared with the earlier period. This is an unweighted average of the calendar-month means, rather than a day-weighted annual figure. The largest monthly decrease occurred in February, with a difference of -0.96 hours/day. By contrast, June had the largest monthly increase, a difference of +0.01 hours/day; these monthly contrasts show why the overall mean does not describe every month equally.

Changes in snowfall

Mean daily snowfall averaged across calendar months had a difference of -0.21 mm/day. This unweighted comparison of monthly means concerns daily amounts, not monthly snowfall totals, and a mean difference does not imply an identical change in each month. The largest monthly decrease was in January, with a difference of -2.60 mm/day. In March, the largest monthly increase was a difference of +0.60 mm/day, showing contrasting monthly changes within the comparison.