Climate Change Chart of Rostov-on-Don, Russian Federation

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +1.86 °C in the more recent period. This unweighted average describes the aggregate of the monthly means; it is not a day-weighted annual average or a measure of daytime highs. The largest monthly increase was in January, with a difference of +5.11 °C compared with the earlier reference period, highlighting a particularly pronounced change in that month's mean rather than a uniform shift across all months.

Changes in snowfall

Mean daily snowfall averaged across calendar months had a difference of -0.08 mm/day in the more recent period. This unweighted monthly-mean comparison is not a day-weighted annual snowfall total. Month-specific differences varied: the largest increase was in January, at +0.84 mm/day, while the largest decrease was in February, at -1.20 mm/day. These differences describe recorded snowfall averages for the respective months; they do not establish that snowfall was absent in either period or that the mean change applied to every month.

Changes in rainfall

Mean daily rainfall, rather than monthly rainfall totals, had an average difference of +0.45 mm/day across calendar months. This unweighted average summarizes the monthly means and should not be read as a day-weighted annual amount. The largest monthly increase occurred in May, with a difference of +1.07 mm/day; by contrast, the largest monthly decrease was in August, with a difference of -0.01 mm/day. These month-specific differences show that the overall average does not describe every month's rainfall change.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months had a difference of -0.36 hours/day compared with the earlier reference period. This unweighted average describes the aggregate of monthly means, not a day-weighted annual total. The largest monthly decrease was in September, where the difference was -0.77 hours/day. That monthly contrast sits within an average across months and does not imply that every month's sunshine duration changed by the same amount.