Based on 901 research-grade iNaturalist observations in Idaho, Small White is most often recorded in July; in Idaho it behaves like a summer visitor / breeder. It ranks #3 among butterflies recorded in the state in our data.
Pieris rapae
Small White in Idaho 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 Idaho in July
California Tortoiseshell
Lorquin's Admiral
Western Tiger Swallowtail
Common Wood-Nymph
Weidemeyer's Admiral
Painted Lady
Northern Checkerspot
Pale Swallowtail
Places to look in Idaho
National ForestBoise National Forest
National ForestCaribou–Targhee National Forest
National ForestSawtooth National Forest
State ParkCity of Rocks National Reserve
State ParkMassacre Rocks State Park
National ForestKaniksu National Forest
FAQ
When does Small White appear in Idaho?
Mainly April–September, with the most records in July.
How common is Small White in Idaho?
It ranks #3 by number of iNaturalist observations among butterflies in Idaho (901 records in our sample).