Moles are active year-round. Here's what changes.
Unlike some wildlife, eastern moles do not hibernate. They're active beneath your yard in every season, 365 days a year. But their tunneling depth, feeding patterns, and breeding behavior change throughout the year, and those changes affect when you're most likely to notice damage.
In Middle Tennessee, our mild winters and moist soil conditions keep moles feeding near the surface for most of the year. That's different from northern states where moles tunnel deeper during hard freezes. Tennessee homeowners deal with more visible mole damage across more months than homeowners in colder climates.
Spring (March - May): The damage explosion.
Spring
High visible damageWhat's happening underground: Spring is when most Nashville homeowners first notice mole damage. The soil is warming up, earthworm activity increases near the surface, and moles are tunneling aggressively to feed. If moles bred during the winter (more on that below), the young are now dispersing and establishing their own tunnel systems.
What you'll see: New surface tunnels appearing rapidly, fresh mole hills, squishy or spongy areas in the lawn, raised ridges across the yard. Damage can seem to appear overnight after a spring rain.
What to do: This is the most common time people call us. Don't wait to see if the moles leave on their own. They won't. Every week you wait, the tunnel network expands and the damage gets worse. Call for trapping now.
Summer (June - August): Tunnels go deeper, damage slows.
Summer
Moderate - deeper activityWhat's happening underground: As the surface soil dries out and heats up during Tennessee's hot summers, earthworms move deeper. Moles follow their food source and tend to tunnel at greater depths. Surface tunneling slows down, and visible damage decreases.
What you'll see: Fewer new surface tunnels. Existing ridges may flatten out as the dry soil settles. You might assume the moles have left. They almost certainly have not. They're still there, just feeding deeper where you can't see the evidence.
What to do: If you still see occasional fresh mole hills or surface activity, the moles are active and trapping is still effective. If the yard looks quiet, keep an eye on it as fall approaches. Irrigated lawns will continue to see surface activity all summer because watering keeps earthworms near the surface.
Important note for irrigated lawns: If you water your yard regularly, you're keeping the soil moist and the earthworms near the surface. Moles on irrigated properties may stay shallow and active all summer long. This is extremely common in neighborhoods across Franklin and Brentwood where homeowners invest in lawn care and irrigation systems.
Fall (September - November): Activity ramps back up.
Fall
High activityWhat's happening underground: Cooler temperatures and fall rain bring earthworms back toward the surface. Moles follow. Surface tunneling picks up again as moles expand their feeding networks in preparation for winter. This is also when moles are building up fat reserves and fortifying their deeper tunnel systems for the cold months.
What you'll see: New tunnels and mole hills reappearing, sometimes in areas that seemed quiet all summer. The moles didn't leave in July. They were just deeper. Now they're back at the surface.
What to do: Fall is an excellent time to trap. The moles are actively tunneling near the surface, making it easier to identify active runs and place traps effectively. Addressing the problem in fall also prevents winter breeding.
Winter (December - February): Breeding season. The most overlooked problem.
Winter
Breeding seasonWhat's happening underground: This is the critical period that most homeowners miss. Eastern moles breed in late winter, typically from late January through March in Tennessee. Males expand their territory to find females, often tunneling into new areas. After a roughly 6-week gestation period, females give birth to 2 to 5 pups.
What you'll see: Possibly very little. Tennessee winters are mild enough that some surface activity continues, but many homeowners aren't paying close attention to their yards in January and February. The damage is happening, but nobody's looking.
What to do: This is where the Mole Control Program pays for itself. Monthly inspections through the winter catch breeding activity before it turns into a population explosion by spring. One mole in December can become 3 to 6 moles by April. Trapping through the winter stops that cycle.
The breeding cycle and why it matters for your wallet.
Here's the scenario we see every spring:
A homeowner had 1 mole in the fall. They decided to wait it out over winter instead of calling for trapping. That mole bred in February. By April, there are now 3 to 5 moles in the yard. The damage is significantly worse than it was in October. The trapping job that would have cost $150 in the fall now costs $300 to $450 in the spring.
This cycle repeats every year for homeowners who only address moles reactively. By the time you see the damage in spring, the population has already multiplied.
The math on prevention is straightforward:
- Reactive approach: Ignore moles in winter, deal with 3 to 5 moles in spring. Cost: $300 to $450 per event, possibly twice a year.
- Monthly program: $75/month. We catch the single mole in fall or early winter at $75, before it breeds. Total annual cost is often lower, and you never deal with a full-blown infestation.
The takeaway: If you're going to address moles at any point in the year, fall and early winter give you the best return on investment. You're catching fewer moles at lower cost and preventing the spring population surge.
When is the best time to trap moles in Tennessee?
Trapping is effective year-round in Tennessee. There is no "off season" for mole removal. But some periods are better than others:
Best: Fall (September - November). Moles are actively tunneling near the surface, active runs are easy to identify, and you're getting ahead of the winter breeding season.
Also excellent: Spring (March - May). High surface activity makes trap placement straightforward. This is when most people call because the damage is most visible.
Still effective: Winter (December - February). Tennessee winters are mild enough that moles remain active near the surface in most areas. Trapping during this period catches moles before they breed.
Most challenging: Summer (June - August). Deeper tunneling can make active run identification harder in unirrigated yards. Still effective on irrigated lawns where moles stay shallow. Professional trappers can work with deeper activity.
The honest answer is: the best time to trap is whenever you notice moles. Waiting always makes the problem worse and more expensive. Every week a mole spends in your yard is another week of tunnel expansion and lawn damage.
How to tell if moles are currently active in your yard.
Not sure if you have an active mole problem or just old damage from a mole that's already gone? Here's how to tell:
- Fresh mole hills. New piles of dirt that weren't there yesterday or last week. Fresh soil will look darker and moist compared to the surrounding ground.
- Raised ridges that are firm and intact. Active surface tunnels will feel solid when you press on them. Older, abandoned tunnels tend to collapse more easily.
- The stomp test. Find a surface tunnel and press it flat with your foot. Mark it. Check again in 24 to 48 hours. If the tunnel has been pushed back up, the mole is actively using it.
- Squishy or spongy ground. Areas where the ground gives way slightly underfoot indicate active tunneling below the surface.
- Damage spreading to new areas. If the affected area of your yard is getting larger week by week, you have an active mole.
If any of these signs are present, you have an active mole problem. The mole will not leave on its own. It has found a reliable food source in your yard and will continue to exploit it until it's removed.
The bottom line.
Moles are active year-round in Tennessee. Spring and fall are when you'll see the most visible damage. Winter is when they breed. Summer is when they go deeper and people mistakenly think they're gone.
The most expensive mistake homeowners make is waiting. A one-mole problem in October becomes a 3 to 5 mole problem by April. The best time to trap is the moment you notice activity. The second best time is right now.
Seeing signs of mole activity? Don't wait for spring. Ogden Mole Control traps year-round across Nashville, Franklin, Brentwood, and all of Middle Tennessee. $150 per mole caught, free setup, no trip charges. Request a quote or call (931) 682-6062.