Climate Change Chart of Berlin, Germany

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +2.11 °C compared with the earlier reference period. This is an unweighted mean of monthly means, not a day-weighted annual average, and it describes the aggregate rather than every month; monthly means also should not be read as daytime maximum temperatures. The largest monthly increase was in January, with a difference of +4.79 °C. This identifies the strongest increase among the reported monthly changes, rather than implying that temperatures rose by the same amount in other months.

Changes in snowfall

Mean daily snowfall averaged across calendar months had a difference of -0.61 mm/day compared with the earlier reference period. This unweighted mean summarizes monthly means rather than monthly snowfall totals, and does not establish that the same decrease occurred in every month. The largest monthly decrease was in February, with a difference of -3.16 mm/day in mean daily snowfall. The monthly difference highlights the strongest reported decrease, while the period-wide mean remains an aggregate across calendar months.

Changes in rainfall

Mean daily rainfall, averaged across calendar months, had a difference of +0.17 mm/day compared with the earlier reference period. This unweighted mean summarizes monthly means, not monthly rainfall totals, and does not mean that rainfall increased in every month. The largest monthly increase occurred in October, where mean daily rainfall had a difference of +0.93 mm/day. In contrast, the largest monthly decrease was in August, with a difference of -0.51 mm/day; together, these mark contrasting monthly changes, not a uniform shift through the year.

Changes in sunshine duration

Averaged across calendar months, mean daily sunshine duration had a difference of +0.02 hours/day. This is an unweighted average of calendar-month means, so it summarizes the set of months rather than indicating the same change in each one. The largest monthly increase was in May, with a difference of +0.58 hours/day. The largest monthly decrease, in January, was a difference of -1.03 hours/day, showing that the monthly changes differed in direction; these are mean daily hours, not totals for the months.