Based on 2,684 research-grade iNaturalist observations in Washington, Small White is most often recorded in July; in Washington it behaves like a summer visitor / breeder. It ranks #4 among butterflies recorded in the state in our data.
Pieris rapae
Small White in Washington 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 Washington in July
Western Tiger Swallowtail
Lorquin's Admiral
Snowberry Checkerspot
Clodius Parnassian
Woodland Skipper
Edith's Checkerspot
California Tortoiseshell
Pacific Fritillary
Places to look in Washington
National ForestGifford Pinchot National Forest
National ForestOlympic National Forest
State ParkPeace Arch Park
National ForestColville National Forest
National ForestMount Baker–Snoqualmie National Forest
Botanical GardenBellevue Botanical Garden
FAQ
When does Small White appear in Washington?
Mainly April–September, with the most records in July.
How common is Small White in Washington?
It ranks #4 by number of iNaturalist observations among butterflies in Washington (2,684 records in our sample).