How does the presence of high-pressure systems typically influence weather conditions?

High-pressure systems are typically associated with descending air, which inhibits cloud formation and results in stable atmospheric conditions. As air descends, it warms and dries, leading to clear skies and calm weather. This is why the presence of high-pressure systems often correlates with sunny days and minimal precipitation. Additionally, the lack of significant atmospheric lifting means that weather disturbances are less likely to develop, contributing to extended periods of fair weather. It's important to note that while high-pressure systems can lead to dry and clear conditions, local variations and other meteorological factors can still influence weather outcomes, but as a general rule, clear skies and calm weather are characteristic of high-pressure systems.