Climate Change Chart of Sarajevo, Bosnia and Herzegovina

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +1.55 °C compared with the earlier reference period; this is an unweighted average of monthly means, not a day-weighted annual figure or a measure of daytime maximum temperatures. The largest monthly increase was in January, with a difference of +4.09 °C. By contrast, September had the largest monthly decrease, a difference of -0.39 °C. These months show that the overall mean difference does not describe every month’s change.

Changes in snowfall

Mean daily snowfall, not monthly totals, averaged across calendar months shows a difference of -0.20 mm/day in the more recent period. This is an unweighted comparison of calendar-month means; the rounded aggregate does not establish that snowfall was absent or unchanged in every month. Monthly differences varied: January had the largest decrease, with a difference of -2.86 mm/day, while February had the largest increase, with a difference of +1.46 mm/day. These month-specific results are not monthly snowfall totals.

Changes in rainfall

Mean daily rainfall, rather than monthly totals, averaged across calendar months shows a difference of +0.82 mm/day in the more recent period; this is an unweighted average of the calendar-month means, not a day-weighted annual average. The largest monthly increase occurred in May, where mean daily rainfall had a difference of +1.60 mm/day. That monthly result is distinct from the aggregate mean difference and does not indicate that rainfall increased in every month.

Changes in sunshine duration

Averaged across calendar months, mean daily sunshine duration had a difference of +0.22 hours/day compared with the earlier reference period. This unweighted average summarizes calendar-month means, rather than a day-weighted annual total. The largest monthly increase in mean daily sunshine was in November, with a difference of +0.94 hours/day; the largest monthly decrease was in March, with a difference of -0.20 hours/day. The contrasting monthly differences put the overall mean in context without implying the same change throughout the year.