What is the average yearly precipitaion of the coral reef biome?

The average yearly precipitation in the coral reef biome is typically low, as coral reefs are found in tropical and subtropical regions where rainfall is often seasonal. Precipitation levels can vary depending on the specific location of the reef, but on average, coral reefs receive around 50-100 centimeters (20-40 inches) of rainfall per year. This relatively low precipitation is balanced by high evaporation rates in these warm, sunny regions.