Based on 1,649 research-grade iNaturalist observations in Washington, Yellow-bellied Marmot is most often recorded in May; in Washington it behaves like a seasonal. It ranks #15 among mammals recorded in the state in our data.
Marmota flaviventris
Yellow-bellied Marmot in Washington 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 Washington in May
Eastern Cottontail
Eastern Gray Squirrel
Douglas's Squirrel
American Beaver
Common Raccoon
Mule Deer
Harbor Seal
Coyote
Places to look in Washington
National ForestGifford Pinchot National Forest
National ForestOlympic National Forest
State ParkPeace Arch Park
National ForestColville National Forest
National ForestMount Baker–Snoqualmie National Forest
Botanical GardenBellevue Botanical Garden
FAQ
When does Yellow-bellied Marmot appear in Washington?
Mainly March–July, with the most records in May.
How common is Yellow-bellied Marmot in Washington?
It ranks #15 by number of iNaturalist observations among mammals in Washington (1,649 records in our sample).