Frogs in Colorado in May
Yes, May is a good month to see frogs in Colorado. It is the 4th busiest month of the year, with 1,755 of the 12,635 sightings logged across the year (13.9%), 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.
Good month for frogs in Colorado
13.9%
of yearly sightings
1,755
records in May
#4
busiest month of 12
12,635
verified records a year
April 5.7%, May 13.9%, June 20.1%. Busiest month is July at 27.7%.
12,635 verified observations of frogs in Colorado, recorded across 12 months of the year on iNaturalist.
When frogs are recorded in Colorado
Peak month
July
3,495 records (27.7% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 43 | 0.3% |
| February | 14 | 0.1% |
| March | 127 | 1% |
| April | 722 | 5.7% |
| May | 1,755 | 13.9% |
| Junepeak | 2,542 | 20.1% |
| Julypeak | 3,495 | 27.7% |
| Augustpeak | 2,337 | 18.5% |
| September | 1,323 | 10.5% |
| October | 225 | 1.8% |
| November | 37 | 0.3% |
| December | 15 | 0.1% |
Frogs you are most likely to see
| Species | Verified observations |
|---|---|
| Woodhouse's Toad | 5,687 |
| American Bullfrog | 2,290 |
| Boreal Chorus Frog | 1,358 |
| Northern Leopard Frog | 809 |
| Couch's Spadefoot | 423 |
| Mexican Spadefoot | 388 |
| Plains Spadefoot | 385 |
| Plains Leopard Frog | 277 |
In Colorado, May carries 13.9% of the year's frogs sightings, about 5.6 points above an even month-to-month split. That makes it the 4th busiest of the twelve months, out of 12 months with recorded activity.
Activity is rising from April (5.7%) into May, and it heads toward June (20.1%) after. The busiest month is July (27.7%), so if timing is flexible, that window is the safer bet.
The frogs most often recorded in Colorado are Woodhouse's Toad, American Bullfrog and Boreal Chorus Frog. 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 frogs you are most likely to see
- Woodhouse's Toad5,687 records
- American Bullfrog2,290 records
- Boreal Chorus Frog1,358 records
- Northern Leopard Frog809 records
- Couch's Spadefoot423 records
- Mexican Spadefoot388 records
Plan your frog trip in Colorado
Start with live tours near Bent's Old Fort National Historic Site, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
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Use the live GetYourGuide widget to compare local departures and activity styles close to the main frog viewing area.
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Gear to see them
Frequently asked questions
Can you see frogs in Colorado in May?+
Yes. May accounts for 1,755 of the 12,635 verified frogs sightings logged in Colorado across the year, which is 13.9% of the annual total.
Is May a good time to see frogs in Colorado?+
May is the 4th busiest month. It is workable, though July and June is the stronger window for a reliable sighting.
What month is best for frogs in Colorado?+
July is the single busiest month, with the broader peak running through July, June and August, based on 12,635 verified observations.
Which frogs are you most likely to see in Colorado?+
The most-recorded species in Colorado are Woodhouse's Toad, American Bullfrog and Boreal Chorus Frog, based on all-time iNaturalist counts.
See frogs in Colorado in other months
More wildlife in Colorado