Written and reviewed by the design team at Edge Design Company, Ogden, Utah. Watering figures below are taken from the Weber Basin Water Conservancy District irrigation guidelines, July 2026.
Almost every homeowner we meet who has a struggling lawn is watering it more, not less. And in most cases the water was never the problem.
Here are the numbers the Weber Basin Water Conservancy District actually publishes, and what usually goes wrong.
The numbers, plainly
A Northern Utah landscape needs roughly 28 to 32 inches of water a year. In mid-summer that works out to about 1.5 inches per week — which is three days a week, not seven.
Each time you water, you are trying to put down about half an inch. How long that takes depends entirely on your heads:
- Fixed spray heads: roughly 10–20 minutes per zone.
- Rotor / gear-driven heads (the ones that sweep back and forth): roughly 30–60 minutes per zone, because they apply water far more slowly.
If you are running rotors for 12 minutes because that is what the spray zones get, those areas are being underwatered by more than half. That is usually the dry patch you keep blaming on the grass.
Want to know your real number? Put an empty tuna can on the lawn, run the zone, and measure. It takes one evening and it beats guessing.
Do not water between 10 AM and 6 PM. Early morning or evening only — midday, a meaningful share of it evaporates or blows away before it reaches the roots.
Four reasons your water bill is high and the lawn still looks bad
1. Your heads are spaced wrong
This is the big one. If heads are too far apart, no amount of extra run time fixes it — you just drown the areas that already get water while the gaps stay dry. The only real fix is to dig and move the heads. Adding minutes is treating a plumbing problem with money.
2. You have a leak you have never noticed
A bad valve or cracked line can quietly lose 10 to 20 gallons an hour. Depending on your soil there may not even be a soggy patch to tip you off. Walk the system once a month and look for damaged, clogged or tilted heads.
3. Your timer is running two programs
This one is almost funny. A lot of controllers support multiple programs, and Weber Basin regularly finds systems where two programs are set to water the same zones on the same nights — one runs, then the other runs right after. The yard gets double the water and the owner has no idea, because it all happens at 3 AM.
Go look. Right now. Check every program on the controller, not just the one you normally use.
4. It is not water at all
Grubs and lawn pests show up in late June and July, and the damage looks exactly like drought stress. If you water more, nothing improves, because the roots are being eaten. Probe the soil first — if it is moist and the lawn still looks sick, stop watering and go find the actual problem.
Clay soil? Cycle and soak.
Most of the valley is heavier soil, and heavy soil cannot absorb half an inch in one go — it runs off down the driveway. Split the run into shorter repeated cycles with about an hour between them. Same total water, none of it wasted on the sidewalk.
Sandy soil is the opposite problem: it will not hold the water, so you go shorter and more often. Same 1.5 inches a week, just delivered differently.
Weber Basin will pay $100 toward a smart controller
A WaterSense-labeled smart controller adjusts your schedule against actual weather instead of running whatever you set in May. Weber Basin offers a $100 rebate on a WaterSense smart controller — and if the controller costs less than $100, the rebate covers all of it.
Apply within 60 days of purchase. You will need proof of purchase, photos of it installed, and the serial number, make and model. Commercial sites can get 50% of the cost up to $1,500 per controller.
It is close to free money for a device that stops you from watering during a rainstorm.
The honest answer: stop watering some of it
Here is the part most landscapers will not tell you.
Weber Basin says outright that any grass area narrower than 8 feet is difficult to water efficiently. Park strips. Side yards. The skinny run along the fence. Those strips are nearly impossible to irrigate without soaking the sidewalk, and nobody walks on them anyway.
The fix is not a better sprinkler schedule. The fix is to stop growing lawn there.
And that is where this connects to actual money: Weber Basin will pay you $1.25–$2.50 per square foot to remove that lawn and replace it with drip-irrigated planting. The strip you cannot water properly is the exact strip they will pay you to convert.
That is usually where we start when we design a yard here — take the lawn out of the places it was never going to work, keep it where people actually use it, and put the water where it does something.
Quick lawn care numbers, while we are at it
- Mow at 2.5–3 inches. Taller grass, deeper roots, less water. Never cut more than a third of the blade at once.
- Mulch the clippings instead of bagging them — free nitrogen and less evaporation.
- Fertilize in April, June and October. The late-fall application is the most important one, and it is the one everybody skips.
Common questions
How long should I run my sprinklers in Utah?
Aim for about half an inch of water per irrigation. That is roughly 10 to 20 minutes per zone for fixed spray heads and 30 to 60 minutes per zone for rotor heads, which apply water much more slowly. Measure it with a can on the lawn rather than guessing.
How many days a week should I water my lawn in Ogden?
Three days a week in mid-summer is enough for most lawns — about 1.5 inches of water total. A fourth day is only needed for a few weeks in late July and early August in an unusually hot year. There is almost never a reason to water every day.
What time of day should I water my lawn in Utah?
Early morning or evening. Never between 10 AM and 6 PM. Watering in the heat of the day loses a large share of the water to evaporation and wind before it reaches the roots.
Why is my lawn brown even though I water it a lot?
Usually one of four things: sprinkler heads spaced too far apart (more run time will not fix this), a hidden leak losing 10–20 gallons an hour, two timer programs running the same zones, or grubs, which look like drought damage but are not. Check the soil moisture before adding water.
Where to start
Go look at your controller tonight and check for a second program. Then put a can on the lawn and find out what your zones actually deliver. Those two things are free and they fix a surprising number of yards.
If the answer turns out to be that half your lawn is in places lawn should never have been, come talk to us. That is a design problem, not a sprinkler problem.