Las Vegas Winter Watering Schedule: How to Adjust Your Irrigation Before November 1
The Las Vegas winter watering schedule begins November 1, making October the ideal time to inspect your irrigation system, update controller settings, and correct leaks or overspray before winter restrictions take effect. Southern Nevada landscapes need much less water during the cooler months, and leaving a system on its fall or summer settings can waste water, increase utility costs, and create unnecessary stress for plants.
According to the Southern Nevada Water Authority (SNWA), mandatory fall restrictions allow sprinkler irrigation three assigned days per week through October 31. Beginning November 1 and continuing through February 28, sprinkler irrigation is limited to one assigned day per week. Sunday sprinkler watering is prohibited year-round.
Chicago Landscape of Las Vegas helps homeowners, HOAs, and commercial property owners throughout Las Vegas and Henderson prepare irrigation systems for seasonal changes. A few adjustments now can prevent months of unnecessary water use while helping trees, shrubs, turf, and desert plants remain healthy through winter.
What Is the Las Vegas Winter Watering Schedule?
The mandatory winter watering schedule applies from November 1 through February 28. During this period, sprinkler irrigation is limited to one assigned watering day per week. Your specific watering day depends on the group assigned to your address.
This represents a major reduction from the three-day-per-week fall schedule. It is important to make the change on time because irrigation systems do not automatically know when local watering restrictions change unless they are programmed to do so.
Property owners should also remember that drip irrigation is not an invitation to water every day. Trees, shrubs, and desert plants generally need far less frequent watering during cool weather than turf.
Why Las Vegas Landscapes Need Less Water in Winter
Cooler temperatures reduce evaporation and slow plant growth. Soil stays moist longer, and plants generally use less water than they do during the extreme heat of summer.
Continuing to water at summer or early-fall levels can create several problems:
- Higher-than-necessary water bills
- Runoff onto sidewalks and streets
- Root problems caused by consistently wet soil
- Fungal and plant-health issues
- Unnecessary wear on irrigation valves and components
- Potential water-waste violations
Reducing irrigation frequency is not neglecting your landscape. During winter, proper irrigation means matching water delivery to the actual seasonal needs of the plants.
1. Change Your Irrigation Controller Before November 1
The first step is adjusting your controller from its fall program to the winter schedule. If your property uses a conventional timer, this usually requires manually changing the active watering days.
Do not simply reduce the number of minutes while leaving the controller programmed to water multiple days per week. The winter schedule is based on watering frequency, so the assigned-day settings should be updated as well.
If you are unsure how your controller is programmed, October is a good time to schedule an irrigation inspection rather than guessing.
2. Confirm Your Assigned Watering Day
Southern Nevada properties are assigned watering groups based on location. Before changing your timer, verify the correct winter watering day for your address through SNWA or your local water provider.
This is particularly important for commercial properties, HOAs, and homeowners managing multiple irrigation controllers. A property may have several zones, but the assigned watering restrictions still apply to the property as a whole.
3. Inspect for Leaks Before Reducing the Schedule
Changing the controller does not fix a damaged irrigation system. Before winter, run each zone manually and look for leaks, broken sprinkler heads, damaged drip tubing, clogged emitters, and valves that fail to close properly.
Common warning signs include:
- Water pooling near valve boxes
- Wet areas long after irrigation stops
- Sprinklers spraying sidewalks or walls
- Broken or tilted sprinkler heads
- Dry plants next to heavily watered areas
- Drip emitters that no longer flow properly
If you find recurring problems, review our guide to 7 signs your Las Vegas irrigation system needs an upgrade or schedule a professional inspection.
4. Check Drip Irrigation for Trees and Desert Plants
Drip systems are extremely effective for desert landscaping, but they still require seasonal adjustment and routine maintenance. Emitters can clog, tubing can crack, and plant growth can make an irrigation layout that once worked well less effective over time.
Inspect the drip system around trees, shrubs, and planting beds. Look for mineral buildup, missing emitters, broken lines, and areas where mature plants may now require different emitter placement.
SNWA notes that trees and plants generally need much less water than grass, and its seasonal watering guidance includes reduced winter irrigation for drip systems as well.
5. Avoid Shallow, Frequent Watering
One of the most common irrigation mistakes is watering a little bit every day. Frequent shallow watering can encourage shallow root systems and waste water through evaporation.
For many established desert trees and shrubs, deeper and less frequent irrigation is the better approach. Water should reach the root zone rather than merely wetting the soil surface.
The correct runtime depends on your irrigation equipment, soil conditions, plant type, and emitter flow rate. A professional irrigation evaluation can determine whether your current system is delivering water effectively.
6. Consider Upgrading to a Smart Irrigation Controller
If adjusting your irrigation timer every season is easy to forget, a smart controller can simplify the process. Modern controllers can help manage seasonal changes, weather conditions, multiple zones, and watering schedules from a smartphone or connected device.
Smart irrigation is especially useful for larger residential properties, HOAs, multifamily communities, and commercial landscapes where multiple zones make manual management more complicated.
Learn more about smart irrigation and AI-powered watering systems for Las Vegas and Henderson.
7. Use October to Correct Overspray and Runoff
Water spraying onto driveways, sidewalks, parking lots, walls, and streets is wasted water. Fall is an ideal time to correct sprinkler alignment and pressure issues before the winter schedule begins.
Overspray may be caused by:
- Incorrect sprinkler nozzles
- Heads that have shifted or tilted
- Excessive water pressure
- Poorly designed sprinkler spacing
- Landscape changes made after the irrigation system was installed
Correcting these problems improves irrigation efficiency and helps keep water where it belongs: in the landscape.
8. Remember That Your Landscape Has Changed Over Time
Irrigation systems are often installed when a landscape is new. Years later, trees are larger, shrubs have matured, grass may have been removed, and hardscape or artificial turf may have replaced planted areas.
If the irrigation system has not changed with the landscape, some zones may now be inefficient or unnecessary. A seasonal inspection is an excellent opportunity to evaluate whether existing irrigation still matches the property.
For properties undergoing water-efficient renovation, Chicago Landscape also provides Water Smart landscape conversions and xeriscaping in Las Vegas.
9. Don’t Ignore Irrigation Just Because It’s Winter
Winter watering is reduced, not eliminated. Trees and shrubs still need water, particularly during extended dry periods. Newly installed plants may also have different establishment requirements than mature landscaping.
The goal is to provide enough water to maintain plant health without continuing the excessive frequency needed during hotter months.
10. Schedule an Irrigation Inspection if You’re Unsure
If you do not know how your controller is programmed, cannot identify your irrigation zones, or have noticed leaks and uneven watering, having the system professionally inspected can save both water and money.
Chicago Landscape provides irrigation repair and sprinkler installation services in Las Vegas, including controller adjustments, leak detection, drip irrigation repairs, system upgrades, and water-efficient redesigns.
Las Vegas Winter Irrigation Checklist
- Verify your assigned winter watering day
- Change sprinkler programming before November 1
- Confirm Sunday sprinkler watering is disabled
- Run every irrigation zone and inspect for leaks
- Adjust sprinkler heads to eliminate overspray
- Inspect drip tubing and emitters
- Check valve boxes for leaks or standing water
- Review runtimes for turf, trees, and shrubs
- Remove irrigation from areas converted to artificial turf or hardscape
- Consider a smart controller if your existing timer is outdated
Frequently Asked Questions About the Las Vegas Winter Watering Schedule
When does the Las Vegas winter watering schedule begin?
The winter watering schedule begins November 1 and continues through February 28.
How many days per week can I run my sprinklers during winter?
Mandatory winter restrictions limit sprinkler irrigation to one assigned day per week. Check your watering group to determine the correct day for your property.
Can I water on Sunday?
No. Sprinkler watering on Sunday is prohibited year-round in Southern Nevada.
Should drip irrigation be reduced during winter?
Yes. Desert plants, shrubs, and trees generally require much less frequent irrigation during cooler weather. Watering frequency should reflect plant needs, soil conditions, and seasonal weather.
Can Chicago Landscape adjust or upgrade my irrigation controller?
Yes. Chicago Landscape of Las Vegas provides irrigation inspections, controller programming, smart-controller upgrades, repairs, and irrigation system improvements for residential and commercial properties.
Prepare Your Irrigation System Before November 1
The transition to the Las Vegas winter watering schedule is an opportunity to do more than change a timer. It is the ideal time to identify leaks, eliminate overspray, evaluate aging irrigation equipment, and make sure your landscape is receiving the right amount of water for the cooler season.
Chicago Landscape of Las Vegas has served Southern Nevada since 2012. We are an A+ BBB Rated, Licensed & Insured Nevada C-10 Landscaping Contractor and an SNWA Water Smart Contractor.
We offer FREE on-site project consultations throughout Las Vegas and Henderson. Our team can inspect your irrigation system, explain equipment options, recommend water-saving improvements, and help prepare your landscape for winter.
Contact Chicago Landscape of Las Vegas today to schedule your FREE on-site irrigation consultation before the November 1 watering change.