Based on 1,146 research-grade iNaturalist observations in District of Columbia, Eastern Tiger Swallowtail is most often recorded in August; in District of Columbia it behaves like a summer visitor / breeder. It ranks #3 among butterflies recorded in the state in our data.
Papilio glaucus
Eastern Tiger Swallowtail in District of Columbia 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 District of Columbia in August
Huron Skipper
Monarch
Zabulon Skipper
Silver-spotted Skipper
Spicebush Swallowtail
Common Buckeye
Small White
Eastern Tailed-Blue
Places to look in District of Columbia
Botanical GardenUnited States Botanic Garden
Botanical GardenUnited States National Arboretum
Botanical GardenBartholdi Park
FAQ
When does Eastern Tiger Swallowtail appear in District of Columbia?
Mainly July–September, with the most records in August.
How common is Eastern Tiger Swallowtail in District of Columbia?
It ranks #3 by number of iNaturalist observations among butterflies in District of Columbia (1,146 records in our sample).