Scorpion season in Southern Utah: when to expect them

Scorpions are active in warm weather, and locals often notice them most in late summer.

Published September 24, 2026 by Purple Crown Pest Control, a family-owned pest and weed control company in St. George, Utah.

The short answer

Scorpions are more active when it is warm and slow down in the cold. St. George news coverage has described the peak as August and September, and monsoon season, which runs from early July through mid-September in the valley, is often linked to more sightings.

How the season works

Scorpions are nocturnal. They spend the day hidden and come out at night to hunt. Warm nights mean more activity. Monsoon storms bring humidity, cooler evenings and more insects, and local news coverage has said the rain can bring scorpions out of their burrows. Growth into desert habitat adds to how often people see them.

A rough year

  • Spring: As nights warm, scorpions become more active. It is a good time to seal and clean up.
  • Summer: Hot days keep scorpions hidden, and warm nights bring them out.
  • Monsoon and early fall: The time locals most often report sightings.
  • Winter: Activity drops, but scorpions can shelter in walls, attics and other protected spots, so an occasional winter sighting is possible.

Every yard is different, so treat this as a general pattern and not a schedule.

Get ready before your peak season

  1. Seal gaps and fix door sweeps.
  2. Clear debris, boards and stacked materials away from the house.
  3. Shake out shoes, towels and gloves stored outside.
  4. Schedule scorpion control before the busy months, if you have had scorpions before.

For the full checklist, read how to keep scorpions out of your house.

Questions people ask

Why do I see more scorpions after rain?

Local news coverage has linked monsoon rain and humidity to more sightings. Rain can also send other insects, which scorpions eat, toward homes.

Should I treat before I see scorpions?

If scorpions have been a problem in past seasons, getting ahead of the busy months makes sense. Read how often to treat your home.

Is scorpion season the same in Ivins and St. George?

The timing is similar, but lots that border open desert usually see more activity than lots in the middle of town. See pest control in Ivins.

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