Ticks to Remain Active in New York Through December

State health officials advise residents to maintain precautions as tick activity continues into late 2026.

Updated on Oct. 23, 2026 in Forecasts

Gouache-painted illustration of a single dry grass stem with an insect silhouette, evoking autumn tick-borne illness risks. — New York state health officials are urging residents to remain vigilant for ticks through December, as rising temperatures extend the traditional tick-borne illness season. AI Illustration. Upload story photo >

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Rising temperatures are extending tick season across New York, with insects expected to remain active through Thanksgiving 2026. Health officials warn that residents should continue to practice preventative measures as activity may persist into early December.

Why it matters

Extended seasonal activity increases the duration of risk for tick-borne illnesses for residents across the state. This trend is driven by rising temperatures that allow ticks to stay active well beyond their traditional seasonal windows.

Official health guidance confirms that tick activity is expected to persist through Thanksgiving 2026 and potentially into early December. This extended timeframe is attributed to rising temperatures that prevent the usual seasonal decline in activity.

The players

New York State Department of Health

This agency is responsible for public health oversight and the issuance of safety advisories to residents across the state of New York.

The details

New York state health officials have issued a reminder for residents to maintain tick precautions, particularly in areas like Long Island. The season is starting earlier and lasting longer, necessitating consistent vigilance throughout the autumn and early winter months.

Ticks are expected to remain active through Thanksgiving 2026.
Ticks may potentially remain active into early December 2026.

Seasonal Patterns

This extended tick season reflects a documented trend where warming temperatures create longer seasonal windows for vector-borne threats. It marks a departure from traditional cycles, with activity now routinely persisting into the late calendar year.

Residents should maintain standard tick prevention routines, such as performing thorough body checks after outdoor activities and wearing protective clothing. It is essential to remain cautious in brushy or wooded areas on Long Island and elsewhere in the state throughout the remainder of the year.

The takeaway

Maintaining vigilance during late-season months is now a necessary adjustment to changing local climate patterns. Residents should continue to prioritize tick checks until temperatures consistently remain low enough to inhibit insect activity.