Bees in Iowa in May

Yes, May is a good month to see bees in Iowa. It is the 5th busiest month of the year, with 1,352 of the 15,661 sightings logged across the year (8.6%), 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 June 28, 2026.

American Bumble Bee photographed in IowaRusty-patched Bumble Bee photographed in IowaRusty-patched Bumble Bee photographed in Iowa
Photos by iNaturalist observers, used under Creative Commons.

Good month for bees in Iowa

8.6%

of yearly sightings

1,352

records in May

#5

busiest month of 12

15,661

verified records a year

April 6%, May 8.6%, June 13.9%. Busiest month is July at 26.2%.

Best months: July, August, SeptemberPeak season right now

15,661 verified observations of bees in Iowa, recorded across 12 months of the year on iNaturalist.

When bees are recorded in Iowa

Peak month

July

4,109 records (26.2% of the year)

Quietest month

January

2 records

MonthObservationsShare
January20%
February90.1%
March620.4%
April9376%
May1,3528.6%
June2,18213.9%
Julypeak4,10926.2%
Augustpeak3,66323.4%
Septemberpeak2,81818%
October4933.1%
November300.2%
December40%

Bees you are most likely to see

SpeciesVerified observations
Common Eastern Bumble Bee3,317
Brown-belted Bumble Bee1,995
Western Honey Bee1,179
Two-spotted Bumble Bee829
American Bumble Bee701
Black-and-gold Bumble Bee605
Eastern Carpenter Bee368
Ligated Furrow Bee347

In Iowa, May carries 8.6% of the year's bees sightings, about 0.3 points above an even month-to-month split. That makes it the 5th busiest of the twelve months, out of 12 months with recorded activity.

Activity is rising from April (6%) into May, and it heads toward June (13.9%) after. The busiest month is July (26.2%), so if timing is flexible, that window is the safer bet.

The bees most often recorded in Iowa are Common Eastern Bumble Bee, Brown-belted Bumble Bee and Western Honey Bee. 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 bees you are most likely to see

  • Common Eastern Bumble Bee3,317 records
  • Brown-belted Bumble Bee1,995 records
  • Western Honey Bee1,179 records
  • Two-spotted Bumble Bee829 records
  • American Bumble Bee701 records
  • Black-and-gold Bumble Bee605 records
Plan your tripEffigy Mounds National Monument

Plan your bee 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.

Frequently asked questions

Can you see bees in Iowa in May?+

Yes. May accounts for 1,352 of the 15,661 verified bees sightings logged in Iowa across the year, which is 8.6% of the annual total.

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

May is the 5th busiest month. It is workable, though July and August is the stronger window for a reliable sighting.

What month is best for bees in Iowa?+

July is the single busiest month, with the broader peak running through July, August and September, based on 15,661 verified observations.

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

The most-recorded species in Iowa are Common Eastern Bumble Bee, Brown-belted Bumble Bee and Western Honey Bee, based on all-time iNaturalist counts.