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Ask anyone who has lived in Tucson for a few years and they’ll tell you scorpion season starts when the nights stay warm. Sightings climb through late spring, peak in the hottest months and often spike again once monsoon storms arrive. Calls to Swift Pest follow the same pattern every year. The reasons have less to do with scorpions multiplying overnight than with heat, water and food pushing them into the open. Below are five reasons scorpions show up more in summer, followed by five local companies that treat them.
Why do scorpions show up more in summer?
1. Do scorpions come out of hiding as the weather warms?
Yes. In cooler months, Arizona bark scorpions (Centruroides sculpturatus) slow down and often cluster together in sheltered spots. A University of Arizona Cooperative Extension publication describes these overwintering aggregations, meaning groups of scorpions sheltering together through the cold season. As spring temperatures rise, those groups break up and scorpions spread out to hunt, so a cluster that sat unnoticed in a block wall all winter can turn into sightings across a whole property.
2. Why do warm nights mean more scorpions?
Scorpions are cold-blooded, so their activity rises and falls with the temperature around them. Bark scorpions hunt at night, and Tucson’s warm summer nights let them stay active longer and range farther from shelter. More time out hunting means more chances to wander through a gap under a door or into a garage.
3. Does extreme heat push scorpions indoors?
It can. During the day, scorpions need cool, sheltered places to avoid the heat and dry air. Wall voids, garages, bathrooms and the spaces under sinks stay cooler and damper than rock piles baking in the sun. Bark scorpions can squeeze through a crack about 1/16 of an inch wide, according to University of California pest management guidance, so a house is easy to get into once they go looking.
4. How does the monsoon season affect scorpions?
The National Weather Service defines Arizona’s monsoon season as June 15 through September 30. Heavy storms soak the ground and flood the burrows, rock piles and debris where scorpions shelter, forcing them to move. Many end up on walls, patios and higher ground near the house. Homeowners often notice a jump in sightings in the days after a big storm.
5. Do summer insects attract scorpions?
Yes. Scorpions eat crickets, cockroaches, beetles and other insects, and those populations surge with summer heat and monsoon moisture. Porch lights pull flying insects toward the house, and scorpions follow the food. Cutting back on insects with fewer bright lights, fixed irrigation leaks and regular pest treatment leaves scorpions less reason to stay.
Which Tucson pest control companies treat summer scorpion problems?
These Tucson-area companies offer scorpion and general pest control:
- Swift Pest Solutions
- Blue Sky Pest Control
- Peach Pest Co
- Bucksworth Services
- ACTION Termite & Pest Control
1. Swift Pest Solutions
Swift Pest Solutions is a family-run Tucson company owned by Jeff Miller, Pest Control Technician, and licensed in Arizona under license number 9815. It serves Tucson, Marana, Vail and Catalina with year-round service. Ahead of and during scorpion season, its technicians use perimeter treatments, seal entry points and do nighttime inspections to find where scorpions shelter. Swift also treats the crickets and other insects that draw scorpions in after monsoon storms. If pests return between scheduled visits, the company comes back at no extra cost.
2. Blue Sky Pest Control
Blue Sky Pest Control is a pest control company with an office on West Prince Road in Tucson.
3. Peach Pest Co
Peach Pest Co is a pest control company on the east side of Tucson.
4. Bucksworth Services
Bucksworth Services is a pest control company in the Catalina Foothills area.
5. ACTION Termite & Pest Control
ACTION Termite & Pest Control is a termite and pest control company on the south side of Tucson.
How can Tucson homeowners get ahead of scorpion season?
Summer brings scorpions out because warm nights, harsh daytime heat, monsoon flooding and plentiful insects all push them toward your home at the same time. The best time to act is before the heat peaks: seal gaps in late spring, clear debris from the foundation and cut back the insects scorpions feed on. Check the yard with a blacklight on a warm evening to see how many are active. If you’re already finding them indoors, schedule a scorpion inspection now rather than waiting for monsoon storms to push more of them inside.
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