I know golf courses get a bad rap for the use of so much water, but you wouldn't believe how many homeowners ask me if we are watering the golf course this time of year. Are there occasions that you should be watering your lawn this time of year? Probably, but unless you have conditions to meet with your HOA, a little brown in your life this time of year wouldn't hurt. What I suggest is to buy a soil probe from your local Ewing Irrigation store and actually check to see if your lawn needs water instead of saying, "we've had two days of sunshine. I better water the lawn". You could also buy a weather station from Ewing Irrigation that ties into your automated system.
If your soil is dry and you feel the need to water than I suggest to water your lawn heavily. I mean that you should turn on your sprinklers for a 1/2 hour or so and saturate the soil. After that, turn your sprinklers off for another week and continue to probe your lawn to check for moisture.