Best Time to See Frogs in Colorado
July, June and August is the best time to see frogs in Colorado. Based on 12,635 verified iNaturalist observations, here is exactly when frogs are most active across the year in Colorado.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
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 |
Weather to expect, source Open-Meteo
Typical weather in Colorado
Recent typical conditions by month, so you can plan a trip around both when frogs are active and what the weather is doing. The best months to look for frogs sit around 42 to 76 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27°F | 5°F | 0.5" |
| Feb | 27°F | 3°F | 0.9" |
| Mar | 34°F | 9°F | 1.3" |
| Apr | 46°F | 20°F | 1.1" |
| May | 57°F | 31°F | 2.5" |
| Junbest time | 69°F | 42°F | 2.1" |
| Julbest time | 76°F | 49°F | 2.5" |
| Augbest time | 75°F | 48°F | 1.7" |
| Sep | 69°F | 41°F | 1.1" |
| Oct | 54°F | 27°F | 0.8" |
| Nov | 40°F | 18°F | 0.6" |
| Dec | 30°F | 10°F | 0.9" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Colorado. Weather varies year to year, so treat these as a guide.
More on frogs in Colorado:
Sightings of frogs in Colorado peak in July, when 3,495 of the year's 12,635 verified observations are logged — about 27.7% of the annual total. Activity stays high through July, June and August.
The quietest stretch is February and December, when frogs are hardest to find — February sees just 14 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The frogs you are most likely to encounter in Colorado are Woodhouse's Toad, American Bullfrog and Boreal Chorus Frog — the most-recorded species in the state. Each keeps its own seasonal rhythm, but the month-by-month pattern above reflects every reported sighting together.
Where to go
Best places to see frogs in Colorado
- Bent's Old Fort National Historic Site — National Historic Site
- Black Canyon Of The Gunnison National Park — National Park
- Colorado National Monument — National Monument
- Curecanti National Recreation Area — National Recreation Area
- Dinosaur National Monument — National Monument
- Great Sand Dunes National Park & Preserve — National Park & Preserve
Gear to see them
Frequently asked questions
What is the best month to see frogs in Colorado?+
July is the single best month, and the broader peak window runs through July, June and August, based on 12,635 verified iNaturalist observations.
When are frogs hardest to see in Colorado?+
February is the quietest month for frogs in Colorado, with only 14 verified records.
Are frogs active year-round in Colorado?+
Frogs are recorded in 12 of 12 months in Colorado, so they can be seen year-round, with a clear peak in July.
More places to see frogs
More wildlife in Colorado