Most people think of mosquitoes as a summer-only nuisance—but some mosquito species survive and even thrive during the colder months. Your daily winter routines might be creating the perfect environment for them to hang around.
In this post, we’ll uncover five winter habits that attract mosquitoes and share how to break those habits to keep your home comfortable and pest-free all season long.
1. Keeping Indoor Humidity Too High
Mosquitoes love moisture, and high indoor humidity levels make your home feel like a tropical retreat for them. Running humidifiers constantly or letting damp air build up in basements, bathrooms, and laundry rooms gives mosquitoes ideal survival conditions.
What to Do Instead:
Maintain indoor humidity between 30–50% using a dehumidifier.
Ventilate moisture-heavy rooms like bathrooms and kitchens.
Repair leaks under sinks and around windows promptly.
2. Ignoring Standing Water Indoors
Even tiny puddles can host mosquito eggs. Pet water bowls, plant trays, and unused vases can all become breeding grounds during the winter months when water sits stagnant for days.
What to Do Instead:
Empty and refill pet bowls daily.
Drain and clean plant saucers regularly.
Store unused containers upside down or dry.
Pro Tip: Drop a few pebbles or sand into plant trays to prevent standing water from accumulating.
3. Leaving Warm, Cluttered Spaces Untouched
Basements, garages, and storage rooms are often out of sight—and out of mind—during winter. These areas provide mosquitoes with the perfect mix of warmth, darkness, and hiding spots.
What to Do Instead:
Clean storage areas at least once a month.
Organize and declutter spaces where boxes and old containers pile up.
Check for leaks or dampness around foundations and water heaters.
For more insights, read our post on Top 5 Places Mosquitoes Hide During Winter—and How to Eliminate Them.
4. Forgetting to Maintain Gutters and Downspouts
When gutters are clogged with leaves and debris, they trap moisture—and even during freezing temperatures, mosquitoes can use these wet areas for protection. Once warmer days arrive, those eggs are ready to hatch.
What to Do Instead:
Clean gutters before winter sets in.
Make sure downspouts drain away from your home.
Install gutter guards to reduce buildup.
The Centers for Disease Control and Prevention (CDC) offers practical tips for preventing mosquito breeding near your home.
5. Bringing Outdoor Plants or Firewood Inside Without Checking
Many people move potted plants or firewood indoors for the season—but these items can carry mosquito eggs or adults hiding in damp bark and soil.
What to Do Instead:
Inspect plants and wood for insects before bringing them inside.
Store firewood in a dry, elevated spot away from walls.
Shake or wipe down pots and planters outdoors before moving them in.
(Internal link suggestion:) See our guide on How to Winterize Your Yard to Prevent a Mosquito Boom in Spring.
Conclusion
Winter doesn’t always mean mosquito-free living. By being mindful of winter habits that attract mosquitoes, you can protect your home year-round. Small adjustments—like reducing humidity, cleaning water sources, and inspecting what you bring indoors—go a long way toward keeping mosquitoes away even in cold weather!