Climate Change Chart of Bucharest, Romania

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +1.28 °C compared with the earlier reference period; this is an unweighted average of the month-by-month means, not a day-weighted annual average or a measure of daytime maximum temperatures. The largest monthly increase was in January, with a difference of +4.57 °C. By contrast, September had the largest monthly decrease, a difference of -0.33 °C; these month-specific comparisons need not represent every month.

Changes in sunshine duration

Averaged across calendar months, mean daily sunshine duration had a difference of -0.36 hours/day compared with the earlier period. This is an unweighted average across monthly means, not a day-weighted annual figure. The largest monthly decrease was in March, with a difference of -1.04 hours/day in mean daily sunshine. The largest increase was shared by May / June, where the difference was +0.01 hours/day; the small increase does not offset or characterize the change in every month.

Changes in rainfall

Mean daily rainfall, averaged across calendar months, had a difference of +0.36 mm/day in the more recent period. This summarizes unweighted monthly means, rather than a day-weighted annual average or monthly rainfall totals. The largest monthly increase was in July, where mean daily rainfall had a difference of +0.67 mm/day. In August, the largest monthly decrease was a difference of -0.04 mm/day; these extremes describe individual monthly means, not daily variability.

Changes in snowfall

Averaged across calendar months, mean daily snowfall had a difference of -0.03 mm/day. This unweighted summary of monthly means is not a day-weighted annual average, and the rounded difference should not be taken to mean snowfall was absent. Monthly differences varied: November had the largest increase in mean daily snowfall, a difference of +0.32 mm/day, while December had the largest decrease, a difference of -0.33 mm/day. These comparisons concern daily means for the named months, not monthly snowfall totals.