Climate Change Chart of Klagenfurt, Austria

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +1.52 °C compared with the earlier reference period; this is an unweighted mean of monthly averages, not a day-weighted annual figure or a measure of daytime highs. The strongest monthly increase was in January, with a difference of +4.02 °C. By contrast, September had the largest monthly decrease, a difference of -0.25 °C. These month-specific changes describe averages for those calendar months, not every individual month within either period.

Changes in snowfall

Mean daily snowfall had a difference of -0.99 mm/day when monthly means are averaged across calendar months. This is an unweighted comparison of daily means, not a measure of monthly snowfall totals. The largest monthly increase was in February, at a difference of +1.24 mm/day; the largest decrease occurred in November, with a difference of -4.00 mm/day. The mean and month-specific differences describe averages across the reference periods, not snowfall on every day.

Changes in rainfall

Mean daily rainfall, averaged across calendar months, had a difference of +0.59 mm/day; this unweighted comparison of monthly means is not a monthly rainfall total or a day-weighted annual average. The largest monthly increase occurred in September, at a difference of +2.07 mm/day, while June recorded the largest monthly decrease, a difference of -0.32 mm/day. These are changes in the daily mean for the named calendar months, rather than statements about rainfall on every day in those months.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, shows a difference of -0.15 hours/day. This unweighted average of monthly means summarizes the comparison without implying the same change in every calendar month. The largest monthly increase was in June, at a difference of +0.71 hours/day; the largest decrease was in September, with a difference of -0.99 hours/day. These figures describe mean daily hours for the named months, not the amount of sunshine on each individual day.