Climate Change Chart of Odessa, Ukraine

Overview of climate changes

Temperature changes

Across calendar months, the unweighted mean difference in monthly mean temperature was an increase of +1.69 °C. This summarizes the average of the monthly differences; it does not mean every month warmed by the same amount, and monthly means are not daytime maximum temperatures. The largest monthly increase was in January, with a difference of +3.60 °C compared with the earlier reference period. This identifies the strongest increase among the supplied monthly comparisons, not a continuous change through time.

Changes in rainfall

Averaged across calendar months, mean daily rainfall showed an increase of +0.36 mm/day. This is an unweighted mean of monthly differences, rather than a day-weighted annual average, and the values describe daily means rather than monthly rainfall totals. The largest monthly increase occurred in June, with a difference of +0.86 mm/day. In contrast, October had the largest monthly decrease, a difference of -0.02 mm/day; these extrema show that the monthly comparisons did not all move in the same direction.

Changes in snowfall

Across calendar months, the unweighted mean difference in mean daily snowfall was an increase of +0.16 mm/day. This aggregate describes differences in monthly daily means, not monthly snowfall totals, and does not indicate that every month increased. The largest monthly increase occurred in January, with a difference of +3.14 mm/day. The largest decrease was in February, at a difference of -1.12 mm/day, so the monthly snowfall comparisons varied in direction.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, had a difference of -0.12 hours/day, a decrease in the more recent period. This unweighted summary of monthly means does not imply an identical change in each month. The largest monthly decrease was in January, at a difference of -0.62 hours/day. The strongest increase was in February, with a difference of +0.50 hours/day, showing contrasting monthly differences in mean daily sunshine.