Best Time to See Ticks in Pennsylvania
May, April and June is the best time to see ticks in Pennsylvania. Based on 3,236 verified iNaturalist observations, here is exactly when ticks are most active across the year in Pennsylvania.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 21, 2026.
American Dog Tick · Nova Patch CC BY-SA
American Dog Tick · Matthew Lindsey CC BY
Asian Longhorned Tick · Zachary Dankowicz CC BY
3,236 verified observations of ticks in Pennsylvania, recorded across 12 months of the year on iNaturalist.
When ticks are recorded in Pennsylvania
Peak month
May
799 records (24.7% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 27 | 0.8% |
| February | 51 | 1.6% |
| March | 229 | 7.1% |
| Aprilpeak | 691 | 21.4% |
| Maypeak | 799 | 24.7% |
| Junepeak | 566 | 17.5% |
| July | 363 | 11.2% |
| August | 73 | 2.3% |
| September | 39 | 1.2% |
| October | 177 | 5.5% |
| November | 178 | 5.5% |
| December | 43 | 1.3% |
Ticks you are most likely to see
| Species | Verified observations |
|---|---|
| Eastern Black-legged Tick | 1,458 |
| American Dog Tick | 1,335 |
| Lone Star Tick | 103 |
| Asian Longhorned Tick | 56 |
| Gulf Coast Tick | 15 |
| Alectorobius kelleyi | 2 |
| Pepper Ticks | 1 |
| Bat-ticks | 1 |
Weather to expect, source Open-Meteo
Typical weather in Pennsylvania
Recent typical conditions by month, so you can plan a trip around both when ticks are active and what the weather is doing. The best months to look for ticks sit around 40 to 79 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 38°F | 23°F | 3.1" |
| Feb | 41°F | 23°F | 3.6" |
| Mar | 50°F | 31°F | 3.3" |
| Aprbest time | 60°F | 40°F | 4.1" |
| Maybest time | 70°F | 49°F | 4.1" |
| Junbest time | 79°F | 59°F | 3.9" |
| Jul | 86°F | 65°F | 3.2" |
| Aug | 84°F | 64°F | 4.3" |
| Sep | 75°F | 57°F | 3.9" |
| Oct | 64°F | 47°F | 4" |
| Nov | 51°F | 35°F | 2.4" |
| Dec | 43°F | 29°F | 4.3" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Pennsylvania. Weather varies year to year, so treat these as a guide.
More on ticks in Pennsylvania:
Sightings of ticks in Pennsylvania peak in May, when 799 of the year's 3,236 verified observations are logged — about 24.7% of the annual total. Activity stays high through May, April and June.
The quietest stretch is January and September, when ticks are hardest to find — January sees just 27 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The ticks you are most likely to encounter in Pennsylvania are Eastern Black-legged Tick, American Dog Tick and Lone Star Tick — 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 ticks in Pennsylvania
- Appalachian National Scenic Trail — National Scenic Trail
- Captain John Smith Chesapeake National Historic Trail — National Historic Trail
- Chesapeake Bay
- Delaware Water Gap National Recreation Area — National Recreation Area
- Fort Necessity National Battlefield — National Battlefield
- Friendship Hill National Historic Site — National Historic Site
Frequently asked questions
What is the best month to see ticks in Pennsylvania?+
May is the single best month, and the broader peak window runs through May, April and June, based on 3,236 verified iNaturalist observations.
When are ticks hardest to see in Pennsylvania?+
January is the quietest month for ticks in Pennsylvania, with only 27 verified records.
Are ticks active year-round in Pennsylvania?+
Ticks are recorded in 12 of 12 months in Pennsylvania, so they can be seen year-round, with a clear peak in May.
More places to see ticks
More wildlife in Pennsylvania