Best Time to See Tree Frogs in Maryland
May, April and September is the best time to see tree frogs in Maryland. Based on 10,622 verified iNaturalist observations, here is exactly when tree frogs are most active across the year in Maryland.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 2, 2026.
Green Treefrog · Judy Gallagher CC BY-SA
Spring Peeper · mklockwood CC BY
Green Treefrog · Austin N. Fife CC BY
10,622 verified observations of tree frogs in Maryland, recorded across 12 months of the year on iNaturalist.
When tree frogs are recorded in Maryland
Peak month
May
1,807 records (17% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 21 | 0.2% |
| February | 151 | 1.4% |
| March | 1,142 | 10.8% |
| Aprilpeak | 1,637 | 15.4% |
| Maypeak | 1,807 | 17% |
| June | 1,311 | 12.3% |
| July | 1,244 | 11.7% |
| August | 1,069 | 10.1% |
| Septemberpeak | 1,336 | 12.6% |
| October | 702 | 6.6% |
| November | 157 | 1.5% |
| December | 45 | 0.4% |
Tree Frogs you are most likely to see
| Species | Verified observations |
|---|---|
| Spring Peeper | 2,094 |
| Northern Cricket Frog | 1,893 |
| Cope's Gray Tree Frog | 1,330 |
| Gray Treefrog | 1,248 |
| Green Treefrog | 1,218 |
| New Jersey Chorus Frog | 96 |
| Upland Chorus Frog | 66 |
| Squirrel Tree Frog | 16 |
Weather to expect, source Open-Meteo
Typical weather in Maryland
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 45 to 79 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 44°F | 30°F | 3.3" |
| Feb | 48°F | 31°F | 3.9" |
| Mar | 56°F | 37°F | 3.9" |
| Aprbest time | 66°F | 45°F | 4.7" |
| Maybest time | 73°F | 54°F | 4.7" |
| Jun | 83°F | 64°F | 5.4" |
| Jul | 89°F | 70°F | 7.3" |
| Aug | 85°F | 69°F | 7.6" |
| Sepbest time | 79°F | 62°F | 4.9" |
| Oct | 69°F | 52°F | 4.9" |
| Nov | 56°F | 40°F | 3.2" |
| Dec | 49°F | 34°F | 4.8" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Maryland. Weather varies year to year, so treat these as a guide.
More on tree frogs in Maryland:
Sightings of tree frogs in Maryland peak in May, when 1,807 of the year's 10,622 verified observations are logged — about 17% of the annual total. Activity stays high through May, April and September.
The quietest stretch is January, when tree frogs are hardest to find — January sees just 21 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 Maryland are Spring Peeper, Northern Cricket Frog and Cope's Gray Tree 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 Maryland
- Antietam National Battlefield — National Battlefield
- Appalachian National Scenic Trail — National Scenic Trail
- Assateague Island National Seashore — National Seashore
- Captain John Smith Chesapeake National Historic Trail — National Historic Trail
- Chesapeake & Ohio Canal National Historical Park — National Historical Park
- Chesapeake Bay
Frequently asked questions
What is the best month to see tree frogs in Maryland?+
May is the single best month, and the broader peak window runs through May, April and September, based on 10,622 verified iNaturalist observations.
When are tree frogs hardest to see in Maryland?+
January is the quietest month for tree frogs in Maryland, with only 21 verified records.
Are tree frogs active year-round in Maryland?+
Tree frogs are recorded in 12 of 12 months in Maryland, so they can be seen year-round, with a clear peak in May.
More places to see tree frogs
More wildlife in Maryland