Scorpion Season in Arizona: What East Valley Homeowners Need to Know

Every spring, homeowners across Chandler, Gilbert, Queen Creek, San Tan Valley, Mesa, Apache Junction, and Scottsdale start finding scorpions in bathtubs, closets, and kids’ bedrooms, and every spring, we get the same question: “Is it scorpion season already?” Here’s what’s actually happening, and how to keep your home protected.

When Is Scorpion Season in Arizona?

Scorpion activity typically ramps up from March through October, peaking during the hot summer months and again after monsoon rains. Bark scorpions are most active at night, when temperatures drop and they leave shelter to hunt insects, which is exactly when homeowners are most likely to encounter one indoors.

They don’t disappear in winter, either. Bark scorpions simply go dormant in cooler weather, tucking into wall voids, block cores, and underground burrows until temperatures rise again.

Why Scorpions Come Indoors

Scorpions aren’t looking for you, they’re looking for insects to eat and cool, humid places to hide. Homes offer both. Common entry points include:

• Gaps under exterior doors and around weatherstripping
• Expansion joints in block walls and foundations
• Weep holes and utility line penetrations
• Landscaping and mulch beds touching the home’s exterior
• Attic vents without proper screening

Because bark scorpions can climb almost any textured surface, including stucco and brick, they aren’t limited to ground-floor entry, they show up in upstairs bedrooms and bathrooms too.

Are Arizona Scorpions Dangerous?

The Arizona bark scorpion is the most medically significant scorpion in the United States. A sting is rarely life-threatening for healthy adults, but it can cause intense pain, numbness, and swelling, and reactions can be more serious in young children, older adults, or anyone with an allergic sensitivity.

If a sting causes difficulty breathing, muscle spasms, or slurred speech, seek emergency medical care immediately.

How to Scorpion-Proof Your Home

1. Seal entry points. Weatherstrip doors, caulk expansion joints, and screen weep holes.
2. Manage landscaping. Keep mulch, rock, and plants at least a foot from the foundation, and trim trees away from the roofline.
3. Reduce outdoor lighting near entrances, since bright lights attract the insects scorpions feed on.
4. Check items before bringing them inside, shoes, towels, and firewood are common hiding spots.
5. Use a UV flashlight at night. Scorpions glow bright blue-green under UV light, making nighttime inspections easy.

Professional Scorpion Control in the East Valley

DIY sealing helps, but bark scorpions are notoriously difficult to eliminate without professional-grade treatment, since they can survive in wall voids for months without eating. Citrus Pest Co uses targeted barrier treatments and exclusion techniques designed specifically for the scorpion pressure we see throughout the East Valley, from the rockier terrain near Apache Junction and San Tan Valley to the established block wall neighborhoods of Mesa, Gilbert, and Chandler, paired with a maintenance schedule that keeps protection active through peak season.

Concerned about scorpions in your home? Schedule a scorpion inspection with Citrus Pest Co before the season ramps up.