Frogs in Maryland in September

Yes, September is a good month to see frogs in Maryland. It is the 6th busiest month of the year, with 4,714 of the 43,723 sightings logged across the year (10.8%), 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.

Eastern American Toad photographed in MarylandGreen Treefrog photographed in MarylandEastern American Toad photographed in Maryland
Photos by iNaturalist observers, used under Creative Commons.

Good month for frogs in Maryland

10.8%

of yearly sightings

4,714

records in September

#6

busiest month of 12

43,723

verified records a year

August 10.9%, September 10.8%, October 4.9%. Busiest month is May at 18%.

Best months: May, June, April

43,723 verified observations of frogs in Maryland, recorded across 12 months of the year on iNaturalist.

When frogs are recorded in Maryland

Peak month

May

7,868 records (18% of the year)

Quietest month

January

75 records

MonthObservationsShare
January750.2%
February5441.2%
March4,1599.5%
Aprilpeak6,42514.7%
Maypeak7,86818%
Junepeak7,07216.2%
July5,43912.4%
August4,74610.9%
September4,71410.8%
October2,1524.9%
November4070.9%
December1220.3%

Frogs you are most likely to see

SpeciesVerified observations
American Toad9,100
Green Frog5,806
American Bullfrog4,307
Fowler's Toad4,306
Pickerel Frog2,318
Wood Frog2,280
Spring Peeper2,099
Northern Cricket Frog1,896

In Maryland, September carries 10.8% of the year's frogs sightings, about 2.5 points above an even month-to-month split. That makes it the 6th busiest of the twelve months, out of 12 months with recorded activity.

Activity holds steady between August and September, and it heads toward October (4.9%) after. The busiest month is May (18%), so if timing is flexible, that window is the safer bet.

The frogs most often recorded in Maryland are American Toad, Green Frog and American Bullfrog. Those counts are annual totals rather than a September split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in September itself.

Which frogs you are most likely to see

  • American Toad9,100 records
  • Green Frog5,806 records
  • American Bullfrog4,307 records
  • Fowler's Toad4,306 records
  • Pickerel Frog2,318 records
  • Wood Frog2,280 records
Plan your tripAntietam National Battlefield

Plan your frog trip in Maryland

Start with live tours near Antietam National Battlefield, 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 frogs in Maryland in September?+

Yes. September accounts for 4,714 of the 43,723 verified frogs sightings logged in Maryland across the year, which is 10.8% of the annual total.

Is September a good time to see frogs in Maryland?+

September is the 6th busiest month. It is workable, though May and June is the stronger window for a reliable sighting.

What month is best for frogs in Maryland?+

May is the single busiest month, with the broader peak running through May, June and April, based on 43,723 verified observations.

Which frogs are you most likely to see in Maryland?+

The most-recorded species in Maryland are American Toad, Green Frog and American Bullfrog, based on all-time iNaturalist counts.