Is it time to turn on the sprinklers? Here’s what the experts at Denver Water say
Apr 10, 2025, 9:22 AM | Updated: 10:06 am
Denver Water recommends waiting until after the last freeze, typically around May 5, to turn on your sprinkler system.
According to Denver Water, Colorado will likely have at least one more night of temperatures below 30 degrees, which can damage automatic sprinkler pipes above or below ground leading to costly repairs and wasted water.
They recommend keeping the sprinklers off for a bit longer. That does not mean it’s too early to water at all. During warm, dry periods, they say you should use some good old fashioned hand-watering for trees, perennials and late-fall plantings. If your lawn has brown spots, use water efficiently by hydrating the distressed areas instead of the entire lawn. Just don’t forget to disconnect the hose from the spigot in case freezing weather moves in.
If you are concerned about your soil’s moisture, check it by inserting a screwdriver into the ground; if it goes in easily, it’s got enough water.
Denver Water’s annual summer watering rules start May 1 and last until October 1.
