Based on 2,101 research-grade iNaturalist observations in Connecticut, Downy Woodpecker is most often recorded in January; in Connecticut it behaves like a year-round resident. It ranks #9 among birds recorded in the state in our data.
Dryobates pubescens
Downy Woodpecker in Connecticut 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 Connecticut in January

Dark-eyed Junco

House Sparrow

Northern Cardinal

White-throated Sparrow

Black-capped Chickadee

Tufted Titmouse

Blue Jay

Carolina Wren
Places to look in Connecticut
Connecticut College Arboretum
Marsh Botanical Garden
Gillette Castle State Park
Hammonasset Beach State Park
Bigelow Hollow State Park
Dinosaur State Park and Arboretum
FAQ
When does Downy Woodpecker appear in Connecticut?
Mainly December–November, with the most records in January.
How common is Downy Woodpecker in Connecticut?
It ranks #9 by number of iNaturalist observations among birds in Connecticut (2,101 records in our sample).