In Austria, but also in neighbouring countries climatic changes are expected. These may result in higher summer temperatures, changes of total precipitation, and may be connected with higher humidity. Prolonged periods of high ambient temperatures, particularly in connection with high humidity, not only affect the farms' production resources but may also have a direct impact on dairy cows. Rising ambient temperatures result in problems with regard to the regulation of the internal body temperature, as the cows ability to dissipate body heat is reduced. In high-yielding cows this is effect is additionally enhanced due to higher metabolic activity. Studies on construction and husbandry measures in dairy cattle farms, which may alleviate the negative effect of high ambient temperature and humidity, are scarce. Hence, data of specific construction and husbandry aspects were collected in 150 Austrian dairy cattle farms. Those data were merged with performance data from the central cattle data base and with meteorological data from 2010 to 2014. The effect of temperature (average of the maximum temperature and temperature-humidity-index, THI, up to and including three days before performance testing) on dairy performance traits (milk yield, fat- and protein content) and udder health (Somatic cell score, SCS) was analyzed excluding and including husbandry systems. Taking husbandry system not into account, performance traits were significantly negatively affected by higher temperatures and higher THI while no effect on SCS was observed. However, including the husbandry system, significant effects of temperature and THI within husbandry systems were found for SCS as well. Particularly with regard to the expected in-crease of days with high ambient temperature, the results illustrate the necessity to reduce dairy cows heat stress in specific husbandry systems.