Based on 615 research-grade iNaturalist observations in North Dakota, Monarch is most often recorded in August; in North Dakota it behaves like a summer visitor / breeder. It ranks #1 among butterflies recorded in the state in our data.
Danaus plexippus
Monarch in North Dakota 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 North Dakota in August
Painted Lady
Eastern Tiger Swallowtail
Melissa Blue
Small White
Red Admiral
Viceroy
Clouded Sulphur
Aphrodite Fritillary
Places to look in North Dakota
State ParkFort Abraham Lincoln
State ParkFort Stevenson State Park
Botanical GardenInternational Peace Garden
State ParkCross Ranch State Park
State ParkFort Ransom State Park
State ParkIcelandic State Park
FAQ
When does Monarch appear in North Dakota?
Mainly June–September, with the most records in August.
How common is Monarch in North Dakota?
It ranks #1 by number of iNaturalist observations among butterflies in North Dakota (615 records in our sample).