Climate Change Chart of Nafplio, Greece

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +0.15 °C compared with the earlier reference period; this is an unweighted comparison of monthly means, not a day-weighted annual figure or a continuous trend. The monthly pattern was not uniform: March had the largest increase, a difference of +0.95 °C, while October had the largest decrease, a difference of -0.65 °C. These are monthly mean temperatures, not daytime maximum temperatures.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months had a difference of +0.16 hours/day compared with the earlier reference period, an unweighted summary rather than a day-weighted annual average. The largest monthly increase occurred in January, at a difference of +1.25 hours/day; in contrast, September had the largest decrease, a difference of -0.25 hours/day. The overall mean therefore describes the aggregate across calendar months and should not be taken to mean sunshine duration changed by the same amount in each month.

Changes in rainfall

Mean daily rainfall, rather than monthly rainfall totals, averaged across calendar months had a difference of +0.04 mm/day in the more recent period; the unweighted mean does not imply the same shift in every month. The largest monthly increase was in September, with a difference of +0.79 mm/day, whereas January recorded the largest decrease, a difference of -0.75 mm/day. These contrasting monthly differences show why the overall mean is best read as a summary across calendar months, not a description of each month's daily rainfall.

Changes in snowfall

Mean daily snowfall averaged across calendar months had a difference of -0.16 mm/day in the more recent period; this is an unweighted comparison of monthly means, not a monthly total or a day-weighted annual average. The largest monthly decrease occurred in January, with a difference of -0.98 mm/day. That monthly result and the calendar-month average summarize recorded snowfall differences without implying that every month followed the same pattern.