What is the rainiest city in the United States? If you thought Seattle, guess again! Mobile, Alabama, surprisingly tops the list with 59 rainy days and a whopping 67 inches
of average annual rainfall. In comparison, Las Vegas is the driest with only six rainy days and five inches of rain per year on average. Annual rainfall varies widely throughout the U.S. and can significantly impact the bottom line for commercial property owners and the utility bill for residents when maintaining landscapes and allocating water for irrigation. What should you know about yearly rainfall and how it can impact your water budget?

Water restrictions are a common conservation strategy, but are not a comprehensive solution. A unique study, “The Rain-Watered Lawn,” compares mandatory water restrictions to weather-based add-on water conservation strategies. The yearlong study was conducted in South Florida, a region with distinct wet and dry seasons as well as permanent year-round water restrictions. For the study, a control group adhered to mandatory water restrictions that allowed lawn watering only on certain days or times. For the experimental group, researchers placed a highly visible sign communicating current rainfall levels and a reminder for the net irrigation requirement (NIR) of most South Florida lawns. Prominently displayed at the bottom of the sign: “Is rainfall alone meeting the water needs of your lawn?”

Research revealed an “astounding 61 percent decrease in lawn watering” in the experimental group compared to the control group. Rainfall alone met the water needs of lawns during wet seasons, which enabled the experimental group to avoid unnecessary watering. In addition, findings showed that conservation behaviors within the experimental group carried over from the wet season to the dry one, indicating behavioral changes that can further add to water conservation efforts in individual

Proper water management can address the leaks in water budgets and your bottom line. Maximize your savings and protect this precious resource, and educate yourself on your geographical area’s natural water cycle and utilize current rainfall levels in relation to the NIR. 

Contact a Banyan Water expert to find out how you can manage your water budget