Which month is typically considered the average peak irrigation month in California?

• A. August
• B. June
• C. July
• D. September

Answer: (C)

July is typically considered the average peak irrigation month in California due to various climatic factors. During this time, temperatures are at their highest, and the demand for water increases significantly for both agricultural and residential landscapes. This heightened need for irrigation arises from the increased evaporation rates and the peak growth period for many plants. As a result, water usage peaks in July as landscapes require more care to maintain their health and appearance.

In contrast, while August may still experience high temperatures and irrigation needs, it often marks the start of a gradual decline in water requirements as summer nears its end. June typically experiences increasing irrigation needs as plants come into full growth, but it is not as high as in July. September generally begins to cool down, leading to lower irrigation requirements as many plants start to enter dormancy or reduce their growth rate in anticipation of fall.