Drought Watering Guide

This table shows the approximate amount of water different types of landscaping typically need each month. Individual watering times may vary due to soil and other conditions. Gradually reduce the amount of water you're using to find an adequate amount for your situation without being wasteful. Use this guide as a reminder to change your sprinkler system each month. When there's measurable rain, turn your sprinkler system off and keep it off until the ground has dried. Download the Irrigation Guide (PDF).
Sprinkler
Irrigation Guide
Watering Month
Water-Efficient Shrubs Water-Efficient Trees Non-Desert Trees Preferred Drought Turf Grass*
January 0.7 gal/day
2 days/week
14 gal/day
2 days/week
45 gal/day
2 days/week
Spray system: 3 min/day; *5 days/week
Rotor system: 7 min/day; *5 days/week
February 0.9 gal/day
3 days/week
21 gal/day
3 days/week
56 gal/day
3 days/week
Spray system: 5 min/day; *5 days/week
Rotor system: 13 min/day; *5 days/week
March 0.9 gal/day
4 days/week
16 gal/day
4 days/week
53 gal/day
4 days/week
Spray system: 7 min/day; *5 days/week
Rotor system: 18 min/day; *5 days/week
April 1 gal/day
5 days/week
17 gal/day
5 days/week
59 gal/day
5 days/week
Spray system: 10 min/day; 7 days/week
Rotor system: 22 min/day; 7 days/week
May 0.9 gal/day
6 days/week
18 gal/day
6 days/week
60 gal/day
6 days/week
Spray system: 12 min/day; 7 days/week
Rotor system: 27 min/day; 7 days/week
June 0.9 gal/day
7 days/week
18 gal/day
7 days/week
59 gal/day
7 days/week
Spray system: 14 min/day; 7 days/week
Rotor system: 30 min/day; 7 days/week
July 0.9 gal/day
7 days/week
18 gal/day
7 days/week
59 gal/day
7 days/week
Spray system: 13 min/day; 7 days/week
Rotor system: 30 min/day; 7 days/week
August 0.9 gal/day
6 days/week
17 gal/day
6 days/week
57 gal/day
6 days/week
Spray system: 12 min/day; 7 days/week
Rotor system: 27 min/day; 7 days/week
September 1 gal/day
5 days/week
18 gal/day
5 days/week
63 gal/day
5 days/week
Spray system: 10 min/day; 7 days/week
Rotor system: 22 min/day; 7 days/week
October 0.9 gal/day
4 days/week
16 gal/day
4 days/week
52 gal/day
4 days/week
Spray system: 7 min/day; 7 days/week
Rotor system: 14 min/day; 7 days/week
November 0.7 gal/day
3 days/week
14 gal/day
3 days/week
44 gal/day
3 days/week
Spray system: 4 min/day; 7 days/week
Rotor system: 10 min/day; 7 days/week
December 0.7 gal/day
2 days/week
14 gal/day
2 days/week
42 gal/day
2 days/week
Spray system: 3 min/day; *5 days/week
Rotor system: 6 min/day; *5 days/week
 
* Mandatory water-use restriction: Watering landscaping on Mondays and Thursdays is prohibited from Dec. 1 through March 31. During times of drought, penalty fees and water restrictions may be in effect.