
Based on 1,200 research-grade iNaturalist observations in New Hampshire, Small White is most often recorded in August; in New Hampshire it behaves like a summer visitor / breeder. It ranks #7 among butterflies recorded in the state in our data.
Pieris rapae
Small White in New Hampshire 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 Hampshire in August

Monarch

Great Spangled Fritillary
Common Ringlet
Common Wood-Nymph

Eastern Tailed-Blue

American Lady

Peck's Skipper

Red-spotted Admiral
Places to look in New Hampshire
White Mountain National Forest
Franconia Notch State Park
Odiorne Point State Park
Mount Washington State Park
State ParkRhododendron State Park
Pawtuckaway State Park
FAQ
When does Small White appear in New Hampshire?
Mainly May–September, with the most records in August.
How common is Small White in New Hampshire?
It ranks #7 by number of iNaturalist observations among butterflies in New Hampshire (1,200 records in our sample).