Generally, when the weather warms up, until the summer rainy season comes, you may need to increase your watering, as allowed. Water evaporates out of the soil much quicker than it generally does during the cooler months.
We always recommend running through your system and to be proactive before the warm, dry weather settles in for long periods of time. During these times scheduling/wait times are longer as the demand for immediate watering increases and grass begins to grow more quickly, utilizing more water.