Calculating Irrigation Schedules and Programming
Water Better with the Weather
During the watering season, the amount of water needed by plants changes with weather and length of day. Regularly adjusting the watering schedule is essential to maintaining a healthy, water-efficient landscape.
Start with a good watering schedule. Use the schedules and information about controller features in Irrigation Scheduling Tools and How to Program a Sprinkler Controller (pdf), or create your own using the Calculators provided by the Irrigation Water Management Services
Once you’ve made a schedule and entered it into your sprinkler controller, adjust it every week or two to match the weather. Learn how to use the features on your controller (irrigation clock) to water efficiently.
Tools on the IWMS website:
- Sprinkler Calculators
- Water Budget Calculators
- Yesterday's ET, Daily Irrigation Index and Weekly Watering Forecast
- Conservation Features on Controllers