Weather: Review of Autumn 2025

The temperature was slightly above the long-term average and brought the temperature fluctuations typical for the season.

Autumn in Top 50

"In the preliminary report, the meteorological autumn 2025 ranks 43rd in the lowlands of Austria in the series of the warmest autumns in the 259-year measurement history and 39th in the 175-year mountain measurement series," said climatologist Alexander Orlik from Geosphere Austria. Compared to the more recent past, the climate average from 1991 to 2020, autumn 2025 is 0.1 degrees above the average in the lowlands and on the mountains of Austria.

In mid-September and early November, there was unusually warm weather for some time. At some weather stations, temperatures were even close to monthly records. For example, on September 19, 16.0 degrees were measured at the Pitztal Glacier and 13.6 at Brunnenkogel. This is the second highest value measured in September at both stations. However, both stations have relatively short measurement series.

Frost and Precipitation

The number of days with frost was approximately in the range of the long-term average at all altitudes: Below 500 meters above sea level, there were an average of ten frost days across Austria, 18 from 500 to 1,000 meters above sea level, 24 from 1,000 to 1,500 meters, and 30 frost days from 1,500 to 2,000 meters.

The amount of precipitation was ten percent below the long-term average in the nationwide evaluation in Austria. "This is clearly within the normal range of fluctuation," says Orlik. The typical deviations in precipitation in autumn are plus/minus 21 percent.

The regional evaluation shows significant differences. There is a gradient from a too dry southwest to a too wet northeast. For example, in parts of East Tyrol and Upper Carinthia, there was 25 to 50 percent less precipitation. In the Waldviertel and Weinviertel, especially in the northern regions, there was up to 40 percent more than the long-term average.

Snow and Sun

Autumn brought the typical first winter onsets. The snow depths now, at the end of November, correspond approximately to the climatological average below 1,500 meters above sea level. Above 1,500 meters above sea level, they are up to about 40 percent below the average.

The number of sunshine hours reached almost the average of the years 1991-2020 in Austria with 320 (minus 3 percent). South of the imaginary line small German Corner-Rosalia, it was predominantly sunnier than average, while north of it, the sun shone mostly shorter than in an average autumn.

(APA/Red)

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