Best Time to See Chipmunks in California

April, May and June is the best time to see chipmunks in California. Based on 172,073 verified iNaturalist observations, here is exactly when chipmunks are most active across the year in California.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.

Eastern Fox Squirrel photographed in CaliforniaMohave Ground Squirrel photographed in CaliforniaEastern Fox Squirrel photographed in California
Photos by iNaturalist observers, used under Creative Commons.
Best months: April, May, June

172,073 verified observations of chipmunks in California, recorded across 12 months of the year on iNaturalist.

When chipmunks are recorded in California

Peak month

April

21,360 records (12.4% of the year)

Quietest month

December

8,398 records

MonthObservationsShare
January9,6395.6%
February11,2796.6%
March14,9048.7%
Aprilpeak21,36012.4%
Maypeak19,88811.6%
Junepeak18,18810.6%
July15,4409%
August14,0088.1%
September15,3368.9%
October13,0377.6%
November10,5966.2%
December8,3984.9%

Chipmunks you are most likely to see

SpeciesVerified observations
California Ground Squirrel58,513
Eastern Fox Squirrel46,783
Western Gray Squirrel17,683
Eastern Gray Squirrel9,579
Merriam's Chipmunk4,545
Common Golden-mantled Ground Squirrel4,390
Douglas's Squirrel4,177
White-tailed Antelope Squirrel4,158

Sightings of chipmunks in California peak in April, when 21,360 of the year's 172,073 verified observations are logged β€” about 12.4% of the annual total. Activity stays high through April, May and June.

The quietest stretch is December, January and November, when chipmunks are hardest to find β€” December sees just 8,398 records. If a reliable sighting matters, plan around the peak window rather than the off-season.

The chipmunks you are most likely to encounter in California are California Ground Squirrel, Eastern Fox Squirrel and Western Gray Squirrel β€” the most-recorded species in the state. Each keeps its own seasonal rhythm, but the month-by-month pattern above reflects every reported sighting together.

Where to go

Best places to see chipmunks in California

  • Alcatraz Island
  • Cabrillo National Monument β€” National Monument
  • Channel Islands National Park β€” National Park
  • Death Valley National Park β€” National Park
  • Devils Postpile National Monument β€” National Monument
  • Golden Gate National Recreation Area β€” National Recreation Area
Plan your tripAlcatraz Island

Plan your chipmunk trip in California

Start with live tours near Alcatraz Island, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Frequently asked questions

What is the best month to see chipmunks in California?+

April is the single best month, and the broader peak window runs through April, May and June, based on 172,073 verified iNaturalist observations.

When are chipmunks hardest to see in California?+

December is the quietest month for chipmunks in California, with only 8,398 verified records.

Are chipmunks active year-round in California?+

Chipmunks are recorded in 12 of 12 months in California, so they can be seen year-round, with a clear peak in April.