What Southern California property managers can do now, while fall conditions are still predictable
El Niño is already here, and it is strengthening as we head toward winter. NOAA currently gives a greater than 90% chance of a very strong event during fall and winter 2026–27. That does not tell us exactly how much rain Southern California will receive, or when it will arrive. Even a very strong El Niño does not guarantee the same impacts everywhere.
What we do know is that September and October give property managers something winter may not: predictable working conditions and more control over the schedule.
This is a good time to walk the property, look at exterior maintenance that is already due and decide what makes sense to complete now, what can wait and what simply needs to be watched.
Start With What You Already Know
Preparing for winter does not mean inventing new projects or trying to clean everything before the first rain.
Start with work you already know needs attention. Are gutters and drainage areas clear? Is annual or quarterly window cleaning due? Has dirt or buildup accumulated on entries, walkways or other high-visibility areas? Is there upper-level work that requires an aerial lift or other specialized access?
Those are good candidates to address while conditions are favorable and scheduling is straightforward.
Access matters, too. Work requiring lifts, ladders or other exterior equipment becomes more weather-dependent once surfaces are wet and storms begin moving through the area. If a project is already on the list, completing it this fall gives you more control over when and how the work gets done.
Some Work Can Wait
A useful pre-winter property assessment should also identify what does not need immediate attention.
Exterior glass that still looks good may be better serviced later. Cosmetic hardscape cleaning with no immediate need may be able to wait. Areas likely to be affected by upcoming construction, landscaping or other site work probably should not be cleaned twice.
The goal is not to get everything done before the first rain. It is to make intentional decisions while you still have options.
A simple way to approach the property is to sort exterior work into three categories:
- Complete Now: Work already due or deferred, along with projects that become more difficult to schedule or safely access during wet weather.
- Plan for Later: Maintenance that can reasonably wait until winter conditions are clearer or until after the rainy season.
- Monitor: Areas that do not require service today but may need attention as conditions change.
That 15-minute exercise can turn a long maintenance list into a much clearer plan.
Winter Changes the Scheduling Equation
Southern California does not suddenly become unworkable when winter arrives. There will still be plenty of good days for exterior maintenance.
But the weather gets a vote.
Service dates may need to move around storms. Certain access methods may not be appropriate when conditions are wet. Pressure washing and runoff require additional consideration. Projects requiring lifts, parking coordination or tenant communication become harder to move at the last minute.
A project that is easy to schedule in September or October may require considerably more flexibility in December or January. Right now, you have more control.
Think Beyond the First Storm
Pre-winter planning is not only about what happens before the rain.
Once significant weather arrives, the property may need a second look. Wind can move debris. Gutters and drainage areas can reveal problems that were not obvious during dry weather. Glass and exterior surfaces may need attention after repeated storms. Areas that were placed in the Monitor category may move onto the maintenance list.
That is why a good winter plan is not one giant cleaning project.
Assess now. Complete priority work. Stay flexible. Reassess as conditions change.
Take a Walk Before Winter
Before the rainy season begins, take a fresh walk around your property. Look at:
- Exterior glass
- Gutters and drainage areas
- Entries and walkways
- Hardscape
- Areas affected by irrigation
- Upper-level or access-sensitive work
- Anything already deferred from earlier in the year
Then decide what belongs in Now, Later or Monitor.
If you’d like a second set of eyes, Pro Form Window Cleaning offers complimentary property walk-throughs for commercial properties throughout Orange County and select Southern California markets.
We’ll walk the exterior with you, identify work that may become more difficult to address as winter approaches and help prioritize what makes sense to complete now – and what can reasonably wait.
Schedule a complimentary property walk-through or call Pro Form Window Cleaning at (949) 873-4050.
El Niño may influence what kind of winter Southern California gets. A little planning this fall can help you stay ahead of whatever arrives.
Editorial fact-check source: NOAA Climate Prediction Center, ENSO Diagnostic Discussion, issued August 13, 2026. Re-check the September 10, 2026 update if the article publishes after that date.
