Tree Frogs in North Dakota in May
Yes, May is one of the best months to see tree frogs in North Dakota. It is the 3rd busiest month of the year, with 21 of the 113 sightings logged across the year (18.6%), based on verified iNaturalist records.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Peak month for tree frogs in North Dakota
18.6%
of yearly sightings
21
records in May
#3
busiest month of 12
113
verified records a year
April 8.8%, May 18.6%, June 12.4%. Busiest month is July at 27.4%.
113 verified observations of tree frogs in North Dakota, recorded across 9 months of the year on iNaturalist.
When tree frogs are recorded in North Dakota
Peak month
July
31 records (27.4% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 1 | 0.9% |
| March | 0 | 0% |
| April | 10 | 8.8% |
| Maypeak | 21 | 18.6% |
| June | 14 | 12.4% |
| Julypeak | 31 | 27.4% |
| Augustpeak | 24 | 21.2% |
| September | 7 | 6.2% |
| October | 4 | 3.5% |
| November | 1 | 0.9% |
| December | 0 | 0% |
Tree Frogs you are most likely to see
| Species | Verified observations |
|---|---|
| Boreal Chorus Frog | 95 |
| Cope's Gray Tree Frog | 7 |
| Gray Treefrog | 2 |
In North Dakota, May carries 18.6% of the year's tree frogs sightings, about 10.3 points above an even month-to-month split. That makes it the 3rd busiest of the twelve months, out of 9 months with recorded activity.
Activity is rising from April (8.8%) into May, and it heads toward June (12.4%) after. This is right inside the peak window, so May is one of the surest months to plan a trip around.
The tree frogs most often recorded in North Dakota are Boreal Chorus Frog, Cope's Gray Tree Frog and Gray Treefrog. 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 tree frogs you are most likely to see
- Boreal Chorus Frog95 records
- Cope's Gray Tree Frog7 records
- Gray Treefrog2 records
Plan your tree frog trip in North Dakota
Start with live tours near Knife River Indian Villages National Historic Site, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Knife River Indian Villages National Historic Site
Use the live GetYourGuide widget to compare local departures and activity styles close to the main tree frog viewing area.
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Stay nearbyStay near Knife River Indian Villages National Historic Site
Compare hotels, cabins and lodges close to the best tree frog viewing area in North Dakota.
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Broader backupBook a tree frog tour in North Dakota
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Frequently asked questions
Can you see tree frogs in North Dakota in May?+
Yes. May accounts for 21 of the 113 verified tree frogs sightings logged in North Dakota across the year, which is 18.6% of the annual total.
Is May a good time to see tree frogs in North Dakota?+
May is one of the best months. It ranks 3rd of the year and sits inside the peak window of July, August and May.
What month is best for tree frogs in North Dakota?+
July is the single busiest month, with the broader peak running through July, August and May, based on 113 verified observations.
Which tree frogs are you most likely to see in North Dakota?+
The most-recorded species in North Dakota are Boreal Chorus Frog, Cope's Gray Tree Frog and Gray Treefrog, based on all-time iNaturalist counts.
See tree frogs in North Dakota in other months
More places to see tree frogs
More wildlife in North Dakota