FleaDates › Tick season › Kentucky
Southeast · KY
When are ticks active in Kentucky?
Ticks in Kentucky are typically active early February to mid-December, heaviest Apr–Oct — and adult blacklegged ticks can surface on any mild winter day.
Ticks to know in Kentucky
Lone star ticks lead the pack in Kentucky, from the western lake country to the knobs, with American dog ticks abundant along the same trails and pasture edges from spring to fall. Blacklegged ticks stretch the season at both ends, with adults out in late fall and on mild winter afternoons. April through October needs the closest attention, though the window can open as early as February in a warm year.
Wherever the calendar sits this month, the habit that actually catches ticks is the after-walk check: ears, collar line, armpits, between the toes. Prevention plus checks beats either alone.
Month-by-month tick activity in Kentucky
| Month | Typical activity | Average temperature |
|---|---|---|
| January | Low | 35.6°F |
| February | Low | 39.4°F |
| March | Moderate | 47.8°F |
| April | High | 58.1°F |
| May | Peak | 67.2°F |
| June | Peak | 75.3°F |
| July | Peak | 78.8°F |
| August | Peak | 77.7°F |
| September | Peak | 70.8°F |
| October | High | 59.4°F |
| November | Moderate | 47.7°F |
| December | Low | 39.3°F |
Estimates from NOAA U.S. Climate Normals (1991–2020), averaged across 3 weather stations near Kentucky's larger cities, using the ~40°F activity threshold reported in published tick research. Real years run early or late with the weather.
Fleas peak later. Kentucky flea season typically runs mid-March to mid-November — see the Kentucky flea season page.
Frequently asked questions
When does tick season start in Kentucky?
Around early February in a typical year, once temperatures clear roughly 40°F — noticeably earlier than flea season. A February thaw can bring ticks out ahead of schedule.
What ticks live in Kentucky?
The species dog owners most often meet in Kentucky: lone star tick, American dog tick, blacklegged (deer) tick. Lone star ticks lead the pack in Kentucky, from the western lake country to the knobs, with American dog ticks abundant along the same trails and pasture edges from spring to fall. Blacklegged ticks stretch the season at both ends, with adults out in late fall and on mild winter afternoons. April through October needs the closest attention, though the window can open as early as February in a warm year.
Do I need tick prevention in winter in Kentucky?
Yes. Ticks overwinter under leaf litter and snow rather than dying off, and mild spells wake them — which is why veterinary organizations recommend year-round parasite prevention. The calendar shows when pressure peaks, not when protection can lapse.
What about fleas in Kentucky?
Fleas run on a warmer calendar — in Kentucky that's mid-March to mid-November. See the Kentucky flea season page for that month-by-month picture.