Spring irrigation can be tricky. Temperature are up and down, rainfall comes and goes, which make it hard to set up you irrigation controller. You can use Be Waterwise Calculator (http://www.bewaterwise.com/calculator.shtml) to help you figure out your sprinkler run time.
Spring is the perfect time to inspect your irrigation system, tune it up and fix everything that needs to be fix before the summer heat rise and that your plants suffer. Watch the weather forecast and don't be shy on hitting the rain delay button so that you can save couple irrigation cycles