Based on 1,210 research-grade iNaturalist observations in Washington, Clodius Parnassian is most often recorded in July; in Washington it behaves like a summer visitor / breeder. It ranks #11 among butterflies recorded in the state in our data.
Parnassius clodius
Clodius Parnassian 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
Small White
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 Clodius Parnassian appear in Washington?
Mainly June–August, with the most records in July.
How common is Clodius Parnassian in Washington?
It ranks #11 by number of iNaturalist observations among butterflies in Washington (1,210 records in our sample).