Based on 4,044 research-grade iNaturalist observations in New Jersey, Eastern Tiger Swallowtail is most often recorded in July; in New Jersey it behaves like a summer visitor / breeder. It ranks #2 among butterflies recorded in the state in our data.
Papilio glaucus
Eastern Tiger Swallowtail in New Jersey 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 New Jersey in July
Monarch
Silver-spotted Skipper
Huron Skipper
Small White
Spicebush Swallowtail
Black Swallowtail
Red Admiral
Peck's Skipper
Places to look in New Jersey
Botanical GardenDrew University
State ParkLiberty State Park
Botanical GardenWillowwood Arboretum
Botanical GardenHerrontown Woods Arboretum
State ParkWawayanda State Park
State ParkIsland Beach State Park
FAQ
When does Eastern Tiger Swallowtail appear in New Jersey?
Mainly July–August, with the most records in July.
How common is Eastern Tiger Swallowtail in New Jersey?
It ranks #2 by number of iNaturalist observations among butterflies in New Jersey (4,044 records in our sample).