Climate Change Chart of Bratislava, Slovakia

Overview of climate changes

Temperature changes

Across calendar months, the unweighted mean of monthly mean temperatures shows a difference of +1.98 °C compared with the earlier reference period; this summarizes monthly averages, not daytime maximum temperatures or a continuous change through time. The largest monthly increase was in January, with a difference of +5.21 °C. By contrast, September had the largest monthly decrease, a difference of -0.32 °C. These identify the strongest month-specific changes, rather than describing every month's comparison.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of +0.33 mm/day; this is an unweighted summary of monthly means, not a day-weighted annual average or a monthly rainfall total. The largest monthly increase was in September, where mean daily rainfall had a difference of +1.51 mm/day. In July, the largest monthly decrease was a difference of -0.31 mm/day. These monthly contrasts do not imply that daily rainfall changed by the same amount on every day.

Changes in snowfall

Across calendar months, the unweighted mean of mean daily snowfall shows a difference of -0.63 mm/day compared with the earlier reference period; this describes monthly averages rather than monthly totals or a day-weighted annual average. The largest monthly decrease was in January, with a difference of -2.68 mm/day in mean daily snowfall. This month-specific comparison does not establish that snowfall was absent in either period or that the same difference applied on every day.

Changes in sunshine duration

The unweighted mean across calendar-month means shows a difference of -0.28 hours/day in mean daily sunshine duration compared with the earlier reference period; it is not a day-weighted annual average. The strongest monthly increase occurred in June, with a difference of +0.48 hours/day hours per day, while January had the largest monthly decrease, a difference of -0.78 hours/day hours per day. These are differences in monthly mean daily duration, not a description of every day's sunshine.