Squirrels in Iowa in May

Yes, May is one of the best months to see squirrels in Iowa. It is the 1st busiest month of the year, with 586 of the 3,564 sightings logged across the year (16.4%), based on verified iNaturalist records.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 2, 2026.

Eastern Fox Squirrel photographed in IowaThirteen-lined Ground Squirrel photographed in IowaThirteen-lined Ground Squirrel photographed in Iowa
Photos by iNaturalist observers, used under Creative Commons.

Peak month for squirrels in Iowa

16.4%

of yearly sightings

586

records in May

#1

busiest month of 12

3,564

verified records a year

April 13.4%, May 16.4%, June 11.1%. Busiest month is May at 16.4%.

Best months: May, April, September

3,564 verified observations of squirrels in Iowa, recorded across 12 months of the year on iNaturalist.

When squirrels are recorded in Iowa

Peak month

May

586 records (16.4% of the year)

Quietest month

February

110 records

MonthObservationsShare
January1393.9%
February1103.1%
March2517%
Aprilpeak47713.4%
Maypeak58616.4%
June39611.1%
July2697.5%
August2386.7%
Septemberpeak44012.3%
October39811.2%
November1403.9%
December1203.4%

Squirrels you are most likely to see

SpeciesVerified observations
Eastern Fox Squirrel1,341
Eastern Gray Squirrel742
Eastern Chipmunk734
Groundhog443
Thirteen-lined Ground Squirrel158
American Red Squirrel34
Southern Flying Squirrel5

In Iowa, May carries 16.4% of the year's squirrels sightings, about 8.1 points above an even month-to-month split. That makes it the 1st busiest of the twelve months, out of 12 months with recorded activity.

Activity is rising from April (13.4%) into May, and it heads toward June (11.1%) after. This is right inside the peak window, so May is one of the surest months to plan a trip around.

The squirrels most often recorded in Iowa are Eastern Fox Squirrel, Eastern Gray Squirrel and Eastern Chipmunk. Those counts are annual totals rather than a May split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in May itself.

Which squirrels you are most likely to see

  • Eastern Fox Squirrel1,341 records
  • Eastern Gray Squirrel742 records
  • Eastern Chipmunk734 records
  • Groundhog443 records
  • Thirteen-lined Ground Squirrel158 records
  • American Red Squirrel34 records
Plan your tripEffigy Mounds National Monument

Plan your squirrel trip in Iowa

Start with live tours near Effigy Mounds National Monument, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Gear to see them

Frequently asked questions

Can you see squirrels in Iowa in May?+

Yes. May accounts for 586 of the 3,564 verified squirrels sightings logged in Iowa across the year, which is 16.4% of the annual total.

Is May a good time to see squirrels in Iowa?+

May is one of the best months. It ranks 1st of the year and sits inside the peak window of May, April and September.

What month is best for squirrels in Iowa?+

May is the single busiest month, with the broader peak running through May, April and September, based on 3,564 verified observations.

Which squirrels are you most likely to see in Iowa?+

The most-recorded species in Iowa are Eastern Fox Squirrel, Eastern Gray Squirrel and Eastern Chipmunk, based on all-time iNaturalist counts.