FleaDates › Tick season › South Carolina
Southeast · SC
When are ticks active in South Carolina?
South Carolina ticks don't take a real winter break: average temperatures stay above the ~40°F questing threshold in every month, with pressure heaviest Mar–Nov.
Ticks to know in South Carolina
Lone star ticks are the tick South Carolina dog owners meet most, out from the first warm days of spring, alongside American dog ticks in open grassy ground. Gulf Coast ticks patrol the Lowcountry's scrub and marsh edges, and blacklegged ticks carry the season through winter's mild patches. March to November is the heavy window, but no month is truly clear, so keep tick protection going after the leaves drop.
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 South Carolina
| Month | Typical activity | Average temperature |
|---|---|---|
| January | Moderate | 46.9°F |
| February | Moderate | 50.2°F |
| March | High | 56.9°F |
| April | Peak | 64.8°F |
| May | Peak | 72.6°F |
| June | Peak | 79.2°F |
| July | Peak | 82.3°F |
| August | Peak | 81.1°F |
| September | Peak | 76°F |
| October | Peak | 65.9°F |
| November | High | 55.8°F |
| December | Moderate | 49.4°F |
Estimates from NOAA U.S. Climate Normals (1991–2020), averaged across 3 weather stations near South Carolina'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. South Carolina flea season typically runs early February to mid-December — see the South Carolina flea season page.
Frequently asked questions
When does tick season start in South Carolina?
It never fully stops. South Carolina's average temperatures sit above the ~40°F questing threshold all year, so tick checks and prevention are a twelve-month routine, with extra vigilance Mar–Nov.
What ticks live in South Carolina?
The species dog owners most often meet in South Carolina: lone star tick, American dog tick, Gulf Coast tick, blacklegged (deer) tick. Lone star ticks are the tick South Carolina dog owners meet most, out from the first warm days of spring, alongside American dog ticks in open grassy ground. Gulf Coast ticks patrol the Lowcountry's scrub and marsh edges, and blacklegged ticks carry the season through winter's mild patches. March to November is the heavy window, but no month is truly clear, so keep tick protection going after the leaves drop.
Do I need tick prevention in winter in South Carolina?
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 South Carolina?
Fleas run on a warmer calendar — in South Carolina that's early February to mid-December. See the South Carolina flea season page for that month-by-month picture.