Based on 1,310 research-grade iNaturalist observations in Massachusetts, Mourning Cloak is most often recorded in April; in Massachusetts it behaves like a seasonal. It ranks #16 among butterflies recorded in the state in our data.
Nymphalis antiopa
Mourning Cloak in Massachusetts 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 Massachusetts in April
American Lady
Small White
Spring Azure
Eastern Pine Elfin
Eastern Comma
Brown Elfin
Juvenal's Duskywing
Red Admiral
Places to look in Massachusetts
Botanical GardenArnold Arboretum
Botanical GardenBoston Public Garden
Botanical GardenBerkshire Botanical Garden
State ParkHalibut Point State Park
State ParkHammond Pond Reservation
State ParkTolland State Forest
FAQ
When does Mourning Cloak appear in Massachusetts?
Mainly March–June, with the most records in April.
How common is Mourning Cloak in Massachusetts?
It ranks #16 by number of iNaturalist observations among butterflies in Massachusetts (1,310 records in our sample).