What months are fleas most active


Fleas are known to be most active during months that provide warm weather. Generally, fleas begin to be more active from April-June and then again from September through October with the peak of activity usually in August. Flea season typically starts when temps reach at least 70 degrees Fahrenheit (21C) for two or three weeks, although some flea species remain active all year round even in colder climates.

During these months, fleas become more active due to the increase in humidity and do not necessarily require a specific host such as humans or animals. Wherever there is warmth, there’s also potential for a flea infestation.

It is important to note that while certain areas may have more active flea seasons than others, any home can attract fleas at any time. Therefore, establishing a good preventative program involving reducing areas frequented by hosts like cats and dogs is essential to controlling infestations all year long.

Understand When Fleas Are Most Active

Fleas are most active from springtime to fall, with the peak season being late August and early September. During this peak of activity, fleas can easily infest your home or property. That’s why it’s important to understand when fleas are most active.

An adult flea is typically a dark-colored insect that is no more than 1/8 inch long. They feed on the blood of warm-blooded animals and, as such, prefer living in areas with high levels of humidity and temperatures of 65 degrees Fahrenheit or higher. Fleas thrive in grassy areas and under debris like leaves, woodpiles, or woodchips.

Certain types of flea larvae require more specific conditions than other types because they need higher humidity and seresto collar for puppy lower temperatures than their counterparts. Therefore, you may find they’re more active during a different part of the year than other species–usually early spring before temperatures get too hot.

Prepare Your Home for Flea Season

If you’re worried about fleas being active during certain months, the best way to protect your home is to prepare for flea season in advance. The first step involves making sure that your home is clean and organized. Vacuum carpets and upholstery furniture regularly, deep clean hard-to-reach areas, and sweep or mop floors. Doing so will remove any existing flea eggs and larvae that may be lying around.

Next, if you have pets, make sure they are on a flea prevention program with their veterinarian. Flea treatments are available in both topical forms and oral medications. Depending on the season, your veterinarian may suggest applying a monthly spot treatment or supplementing it with an additional treatment every other month.

Finally, use an indoor barrier control product to keep fleas from entering your air space by blocking off doors or windows with screens or caulk. Outdoor barriers can also be helpful – fleas tend to love dirt areas which means keeping grass clipped short or using insecticides (or natural deterrents like citrus fruit) can help in preventing them from entering the home in large numbers. Following these steps will help ensure that your home remains unharmed from pesky pests!

Regularly Monitor Pets for Flea Activity

Regularly monitoring your pets for flea activity is essential when trying to determine what months are most active with the pests. fleas can reproduce and spread quickly, so it is important to detect any presence of them on your pet as soon as possible. To identify a flea invasion, you should inspect your pet’s fur, skin and areas around their hooves. Pay special attention to their hindquarters which often offer a prime habitat for fleas. Areas like carpets and pet bedding also need methodical inspection as these are likely hiding spots for fleas. Once you have identified an infestation of fleas, it is important to begin eradicating the pests immediately in order to prevent further discomfort or disease being inflicted upon your pets.

Treat Homes and Pets for Fleas Simultaneously

If you want to reduce the amount of fleas in your home, you must treat both your home and pets for fleas simultaneously. After all, if you only treat one or the other, new fleas will be able to easily find a way back in!

Start by treating your pet first: purchase a flea shampoo and use it according to the instructions. Also, applying a topical treatment to your pet’s coat is an effective way to get rid of those pesky fleas. Be sure to follow the directions carefully when administering any treatments on your pet.

Then treat your home: vacuum thoroughly especially focusing on areas that your pets spend most of their time (beds, couches) and go around baseboards and furniture as well. An antimicrobial spray containing borate salts is also very effective – it degrades flea eggs before they hatch so no more pesky little buggers will remain!

By following these steps each month during the months when fleas are most active – May through October – you can drastically reduce the number of fleas in your home and keep them from coming back as often!


Preparing for flea season is important in order to protect your home and pets from an infestation. Knowing when fleas are most active can help you create an effective prevention plan to keep your family safe.