Based on 8,145 research-grade iNaturalist observations in Arizona, Rock Squirrel is most often recorded in April; in Arizona it behaves like a seasonal. It ranks #2 among mammals recorded in the state in our data.
Otospermophilus variegatus
Rock Squirrel in Arizona by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Arizona in April

Desert Cottontail
Round-tailed Ground Squirrel

Harris' Antelope Squirrel

Collared Peccary
Coyote

Wapiti

Mule Deer

Cliff Chipmunk
Places to look in Arizona
Desert Botanical Garden
Coronado National Forest
Boyce Thompson Arboretum
Tonto National Forest
Yuma Territorial Prison
Apache–Sitgreaves National Forests
FAQ
When does Rock Squirrel appear in Arizona?
Mainly March–October, with the most records in April.
How common is Rock Squirrel in Arizona?
It ranks #2 by number of iNaturalist observations among mammals in Arizona (8,145 records in our sample).