Watering Guidelines

When watering your yard with manual sprinklers, or setting an automatic sprinkler system, the following guidelines will lead to the most efficient water use:

Watering Months Watering Times (minutes per zone) Determine how long to water each zone on your watering day Watering Amounts*
*How much water your grass needs each week.
Fixed Spray
Head
Rotor Heads Manual
Sprinklers
January - April: Water as needed, especially trees and shrubs.
May 13 20 20 1"
June 20 43 30 1-1/2"
July 23 50 35 1-3/4"
August 20 43 30 1-1/2"
September 13 29 20 1"
October: Water as needed, especially trees and shrubs.

Source: CSU Extension

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