When is Flea Season: Map by State

When is Flea Season: Map by State

Fleas and ticks are a few of the many pests that can wreak havoc on your pets and household. So when is flea season and where are they the biggest threat to both you and your beloved dog or cat?

Explore this article to find out when your state is most affected by pests. Plus, how to prepare and protect your pet from unwanted diseases.



Are fleas and ticks seasonal

Fleas and ticks have impeccable fighting power. Even in colder months, they will do anything to stay alive. While these pesky parasites tend to increase as temperatures rise, they aren’t completely seasonal.

What are ticks and where to find them

There are over 200 types of ticks in the United States. Ticks transmit disease (like Lyme disease) when they feed on the blood of animals like dogs, cats, and rodents. Most species of ticks live east of the Rocky Mountains.

Common types of ticks in the United States

Tick species Tick-borne diseases
American dog tick Ehrlichiosis, Rocky Mountain spotted fever, Tularemia
Blacklegged tick Lyme disease, Babesiosis, Anaplasmosis
Brown dog tick Rocky Mountain spotted fever
Lone star tick Ehrlichiosis
common types of ticks

But, even if you live on the west coast you aren’t entirely out of the woods. Ticks can be an even bigger problem if you live in more rural areas (i.e. tick-infested regions). Hiking in tall grass and wooded areas are other ways you can encounter ticks.

What are fleas and where to find them

Finding fleas on dogs or cats isn’t fun. They are easy to pick up from places like the dog park or kennel. And, they can become an even bigger issue if they remain active in your home.

Fleas are extremely common in indoor or outdoor cats and dogs, and they live all over the world. Fleas tend to find an animal host (like pets) to feed on and reproduce. Their itchy bites can cause hair loss, bacterial infection, and disease.

Common types of fleas in the United States

Flea species Flea-borne illnesses
Cat fleas Cat scratch disease (CSD), Murine typhus
Dog fleas Tapeworm
Ground squirrel flea Bubonic plague
Oriental rat fleas Bubonic plague, Murine typhus
types of fleas

What time of year are fleas most active

Fleas are most active in the early spring, summer, and fall. Adult fleas may have a hard time surviving harsh winters. But flea eggs, flea pupae, and larvae can survive all year. Common hiding spots include your attic, floorboards, and furniture.

So when do you need to worry about protecting your pets? Here’s what you need to know about the seasonality of parasites in your area.



When is flea and tick season for dogs & cats

Temperature and humidity play a big role in creating the perfect climate for fleas and ticks. The ideal temperature ranges from 75° to 85° F and around 90% humidity. Both thrive in warmer climates and fleas are particularly favorable to humid conditions.

However, because these parasites can survive throughout the winter months indoors, flea/tick activity can last all year for many states.

What months are flea and tick season

Flea and tick season can last anywhere from 6 to 9 months. In the United States, they are most prevalent in:

Flea and tick season map by state

flea and tick season by state

Source: American Kennel Club, 2022

When does flea and tick season start by state

Season States
Year-round Alabama, Arizona, California, Georgia, Florida, Hawaii, Louisiana, Mississippi, Nevada, North Carolina, Oregon, South Carolina, Texas, Washington
February Arkansas
March Delaware, Idaho, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, New Mexico, Ohio, Oklahoma, Pennsylvania, Tennessee, Utah, Virginia, West Virginia
April Colorado, Connecticut, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, Nebraska, New Hampshire, New Jersey, New York, Rhode Island, South Dakota, Vermont, Wisconsin
May Alaska, North Dakota, Wyoming

When is flea and tick season over by state

Season States
Year-round Alabama, Arizona, California, Georgia, Florida, Hawaii, Louisiana, Mississippi, Nevada, North Carolina, Oregon, South Carolina, Texas, Washington
October Alaska
November Iowa, Maine, Michigan, Minnesota, Montana, Nebraska, New Hampshire, North Dakota, South Dakota, Vermont, Wyoming
December Arkansas, Colorado, Connecticut, Delaware, Idaho, Illinois, Indiana, Kansas, Kentucky, Maryland, Massachusetts, Missouri, New Jersey, New Mexico, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, Tennessee, Utah, Virginia, West Virginia, Wyoming

California

when is flea and tick season in california

California is a vast area that spans the entire west coast. This geography makes for a variety of climates and temperatures depending on where you live.

While most of California is warm and dry, there are some areas that are far more humid and wet. Mild temperatures make California the perfect home for fleas, ticks, mosquitoes, and more.

Florida

when is flea and tick season in florida

If you’ve ever visited Florida you know how humid it can be no matter the time of year. Florida is part of the humid subtropical climate zone which makes for long, hot summers and mild, wet winters. Because of this, fleas and ticks can be big issues for your pets year-round.

New York

when is flea and tick season in new york

New York is part of the humid continental climate zone. Bordered by several large bodies of water, New York has warm summers and cold winters. Large urban areas also make it easier for your dog(s) to host fleas even as temperatures drop. These are ideal conditions for fleas to survive cold weather.

Large urban areas also make it easier for your dog(s) to host fleas even as temperatures drop. These are ideal conditions for fleas to survive cold weather.

Michigan and Ohio

when is flea and tick season in michigan

Unlike other midwestern states, Michigan and Ohio get hit a little harder by pests. This is due to large bodies of water and tall grasses nearby. Both states are part of the humid continental zones and experience mild to hot summers with rain all year.

Pennsylvania

when is flea and tick season in pennsylvania

Like much of the northeastern United States, Pennsylvania falls in the humid continental climate zone. Similar to New York, this area suffers from hot, wet summers and tons of rain. Mild, damp conditions are great for fleas, ticks, and mosquitoes.

Texas

when is flea and tick season in texas

Texas’ size ensures there are several climate zones represented throughout. Hot semi-arid climates are prevalent along the border of Mexico. And in the eastern part of the state, you might experience humid subtropical climates. Either way fleas and ticks are a year-round threat to your pets.


How to prepare for flea season

By now you know that these disease-ridden parasites are a nuisance every season. But do dogs need flea and tick medicine in the winter? What about cats? How can your veterinarian help?

No matter where you live, it’s best to use preventive medication to avoid tick bites or an active flea infestation. Even in the winter months, continuous treatments can be helpful for year-round flea prevention.

What month should you start flea treatment

No matter when you start, you should always use a flea and tick preventative that works for your furry family members. The best strategy is to at least start in your state’s peak season.

Here are some other ways you can prepare for the warmer months ahead.

Know what to look for

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