Based on 2,264 research-grade iNaturalist observations in Arizona, Checkered White is most often recorded in April; in Arizona it behaves like a spring and fall migrant. It ranks #18 among butterflies recorded in the state in our data.
Pontia protodice
Checkered White 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

Marine Blue

Pipevine Swallowtail

Empress Leilia

Texan Crescent

Queen

Gray Buckeye

Gray Hairstreak

Painted Lady
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 Checkered White appear in Arizona?
Mainly February–June, with the most records in April.
How common is Checkered White in Arizona?
It ranks #18 by number of iNaturalist observations among butterflies in Arizona (2,264 records in our sample).