Best Time to See Tree Frogs in Delaware
June, July and May is the best time to see tree frogs in Delaware. Based on 1,615 verified iNaturalist observations, here is exactly when tree frogs are most active across the year in Delaware.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Northern Cricket Frog · inbetweenbays CC BY
Gray Treefrog Species Complex · Meghan Cassidy CC BY-SA
Gray Treefrog Species Complex · inbetweenbays CC BY
1,615 verified observations of tree frogs in Delaware, recorded across 12 months of the year on iNaturalist.
When tree frogs are recorded in Delaware
Peak month
June
296 records (18.3% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 4 | 0.2% |
| February | 8 | 0.5% |
| March | 162 | 10% |
| April | 118 | 7.3% |
| Maypeak | 233 | 14.4% |
| Junepeak | 296 | 18.3% |
| Julypeak | 263 | 16.3% |
| August | 202 | 12.5% |
| September | 205 | 12.7% |
| October | 102 | 6.3% |
| November | 18 | 1.1% |
| December | 4 | 0.2% |
Tree Frogs you are most likely to see
| Species | Verified observations |
|---|---|
| Cope's Gray Tree Frog | 308 |
| Green Treefrog | 241 |
| Northern Cricket Frog | 239 |
| Spring Peeper | 201 |
| New Jersey Chorus Frog | 35 |
| Gray Treefrog | 30 |
| Barking Tree Frog | 20 |
| Squirrel Tree Frog | 4 |
Weather to expect, source Open-Meteo
Typical weather in Delaware
Recent typical conditions by month, so you can plan a trip around both when tree frogs are active and what the weather is doing. The best months to look for tree frogs sit around 56 to 86 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 44°F | 32°F | 2.9" |
| Feb | 47°F | 33°F | 3.8" |
| Mar | 54°F | 39°F | 3.8" |
| Apr | 63°F | 48°F | 4.5" |
| Maybest time | 70°F | 56°F | 3.9" |
| Junbest time | 79°F | 66°F | 3.9" |
| Julbest time | 86°F | 73°F | 6" |
| Aug | 83°F | 72°F | 5.1" |
| Sep | 77°F | 65°F | 4.3" |
| Oct | 68°F | 55°F | 4.4" |
| Nov | 56°F | 43°F | 2.8" |
| Dec | 48°F | 36°F | 4.8" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Delaware. Weather varies year to year, so treat these as a guide.
More on tree frogs in Delaware:
Sightings of tree frogs in Delaware peak in June, when 296 of the year's 1,615 verified observations are logged — about 18.3% of the annual total. Activity stays high through June, July and May.
The quietest stretch is January and December, when tree frogs are hardest to find — January sees just 4 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The tree frogs you are most likely to encounter in Delaware are Cope's Gray Tree Frog, Green Treefrog and Northern Cricket 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 tree frogs in Delaware
- Captain John Smith Chesapeake National Historic Trail — National Historic Trail
- Chesapeake Bay
- First State National Historical Park — National Historical Park
- Washington-Rochambeau Revolutionary Route National Historic Trail — National Historic Trail
Frequently asked questions
What is the best month to see tree frogs in Delaware?+
June is the single best month, and the broader peak window runs through June, July and May, based on 1,615 verified iNaturalist observations.
When are tree frogs hardest to see in Delaware?+
January is the quietest month for tree frogs in Delaware, with only 4 verified records.
Are tree frogs active year-round in Delaware?+
Tree frogs are recorded in 12 of 12 months in Delaware, so they can be seen year-round, with a clear peak in June.
More places to see tree frogs
More wildlife in Delaware