Final answer:
The average yearly rainfall in Nevada is approximately 23 cm is the statement that best describes the climate of an area, as it reflects long-term precipitation averages, a key component of climate.
Step-by-step explanation:
The statement that BEST describes the climate of an area is 'The average yearly rainfall in Nevada is approximately 23 cm.' This statement provides information about the long-term average precipitation levels, which is a defining aspect of a region's climate. Climate refers to the average, over many years, of weather phenomena, including temperatures, precipitation, and wind patterns. In contrast, weather describes the short-term atmospheric conditions at a specific time and place.
For example, the statement about the winter storm warning for Lake Tahoe is a specific weather event, while the relative humidity in southern Nevada describes weather conditions at a particular time. Similarly, the lowest temperature last week in Carson City is another short-term weather observation. The emphasis on long-term averages in the correct option is essential in determining the general climate rather than transient weather conditions.