According to the Czech Hydrometeorological Institute, the highest average daily temperature of 17.9 degrees was measured on October 20, while the lowest, 6.1 degrees, was measured on October 25. The warmest October on record was in 1795, with an average monthly temperature of 13.8 degrees, followed by the years 2001 and 1811. The coldest October ever recorded was in 1905, with an average temperature of 5.6 degrees, followed by the years 1786 and 1881.