Are Fleas an Issue in the Winter? | All You Need to Know!

Written by Thomas Matthews

Finally, it’s wintertime. You can now take a rest from the pests and insects that have been rummaging your gardens and homes, and enjoy your break from the constant application of harmful insecticides or bug foggers just to save your surroundings from a possible pest infestation.

Are fleas an issue in the winter? Fleas can be a big issue in the winter. The cold climate will not eliminate them, but it will slow down their activities. They will look for a warm area in enclosed spaces and continue to hatch eggs to grow their population.

Frustrating, right? But there is good news – flea infestation during the winter can be totally controlled. In the succeeding sections, how they survive winter will be discussed, such as the problems that they give to humans and animals, the tips on how to properly treat and manage their existence, and the effective flea treatments that can be bought online.

Are There Fleas in the Winter?

Most pests die or turn dormant during the winter season. However, this is not true for fleas. 

Can Fleas Survive Winter?

Can Fleas Survive Winter

Fleas can survive winter by looking for possible habitats where they can continue doing their actions and movements. Since they can’t endure the freezing climate, they will avoid outdoor yards. They flourish in warm environments, which may be at around 75 degrees Fahrenheit; they will look for new humid spaces inside homes, offices, and other closed areas where they can lay eggs and expand their population.

Can Cats Get Fleas in the Winter?

Can Cats Get Fleas in the Winter

Cats can still get fleas even in the winter. These pests will look for humid areas inside your house in order to avoid the cold weather.

These insects will jump on cats and will mate and hatch eggs on their fur, usually at 40 to 50 daily. The eggs will then fall down from the cats and stay under the furniture, carpets, and other safe areas until they become larvae.

Do Dogs Get Fleas and Ticks in Winter?

Do Dogs Get Fleas and Ticks in Winter

Fleas and ticks can also infest dogs during the winter season. These pets are one of the favorite hosts of these insects, so their presence is expected if they are given a chance to enter your homes. Since fleas can hurdle at certain heights (as high as six inches), they may reach dogs’ bodies through jumping. 

Do Rabbits Have Fleas in the Winter?

Do Rabbits Have Fleas in the Winter

Fleas enjoy staying on hosts covered with fur. Thus, it is not surprising to see fleas on rabbits even during the winter. Also, fleas from your indoor cats and dogs may jump over and transfer to your pet rabbits.

To identify flea infestation on these animals, you may look for signs such as habitual scratching, biting, and licking on their bodies. However, these manifestations may not be present during the early stages.

Are Fleas Less Active in Winter?

Fleas are less active in freezing weather. During the winter season, their activities and movements are not halted but only slow down. This means that they can still suck blood from humans and animals, mate with other fleas and hatch eggs, although gradually. Thus, there will still be a significant rise in their population.

At What Temperature and How Quickly Do Fleas Die?

Adult fleas are killed in temperatures colder than 46.4 degrees Fahrenheit and hotter than 95 degrees Fahrenheit. In very cold climates, it may take up to five days before they die. However, temperatures between 33 to 46 degrees Fahrenheit may take up to ten to twenty days before they perish.

Should You Treat Fleas in Winter?

You should treat fleas in winter. This is because of its ability to cause diseases such as the following:

  1. Plague, is a bacterial infection that is brought by squirrel fleas and rat fleas.
  1. Flea-borne (Murine) typhus, is an illness that can be passed on to humans through infected fleas from cats and rats.
  1. Cat scratch disease is a sickness that can be transmitted to humans when cats bitten by infected fleas make a scratch on them.
  1. Tapeworm infestation is a condition that may be acquired by humans and animals when they unknowingly ingest infected fleas.

Here is a video about what diseases are carried by fleas:

How Do You Get Rid of Fleas in the Winter? 

The following are the helpful techniques for getting rid of fleas in the winter:

Clean Your Surroundings

Cleaning the areas in your house where your pets spend the majority of their time is a helpful measure in controlling the growth of fleas and ticks. Their eggs and larvae may spread exponentially in carpets, beddings, or furniture, so constant disinfecting, vacuuming, and washing of these sites may aid in the total eradication of these pests. You can also submerge your pet’s toys, crates, and bedding in hot water to eliminate any flea and tick remnants further.

Perform Pet Treatment

The best way to control and prevent the influx of fleas and ticks is to treat the hosts, such as your pets. This can be done by applying topical solutions, shampoos, and collars that can effectively eliminate these insects. These tiny creatures may cling severely to their fur and bodies, so you might want to inspect them thoroughly for the presence of hidden fleas and ticks.

Apply Insecticides That Are Safe to Use

Substances and chemicals found in pesticides such as permethrin, imidacloprid, and dinotefuran (recommended products in the text below) can be very fatal to fleas and ticks. Thus, it is advisable to apply insecticide sprays in locations where these pests are suspected to be present.

What Are the Flea Treatments You Can Buy on Amazon?

Frontline Plus Flea and Tick Treatment for Dogs (Large Dog, 45-88 Pounds, 6 Doses) 

This is one of the perfect choices for flea and tick treatment for dogs. It comprises two potent ingredients, namely Fipronil and S-methoprene, that can effectively exterminate fleas, ticks, and their eggs and larvae. It gives continuous protection to dogs for as long as 30 days, and its six doses can be used for up to six months.

FRONTLINE Plus for Dogs Flea and Tick Treatment (Large Dog, 45-88 lbs.) 6 Doses (Purple Box)
  • Keep your dog protected from fleas & ticks all month long with...
  • Break the flea life cycle with FRONTLINE Plus. Specially...
  • Trusted by pet owners for over 20 years, FRONTLINE Plus for Dogs...
  • FRONTLINE Plus also comes in a formula designed for cats and...
  • Treat all dogs or cats in your household monthly to effectively...

Advantage II Flea Prevention and Treatment for Large Cats, Over 9 Pounds 

This product efficiently eliminates fleas when it comes to close contact with your large cats. Its deterring effect is usually experienced after 12 hours, but its effectivity can last for thirty days. It can slaughter fleas in various life stages such as in their egg, larval and adult phases.

Advantage II Large Cat Vet-Recommended Flea Treatment & Prevention | Cats Over 9 lbs. | 6-Month Supply
  • Advantage II Large Cat is a leading brand in cat flea treatment...
  • Vet-recommended, easy-to-apply monthly topical treatment – no...
  • Delivers total flea protection – kills adult fleas, flea larvae...
  • Same-day effectiveness – kills fleas within 12 hours of...
  • Fragrance-free formula, waterproof after 24 hours of application

Capstar Fast-Acting Oral Flea Treatment for Cats, 6 Doses, 11.4 mg (2-25 Lbs) 

It gives an immediate solution to your flea problems as this treatment starts to work in less than thirty minutes. Buying this product will not necessitate a veterinarian’s prescription as it is safe to use on cats and kittens weighing 2 to 25 pounds.

CAPSTAR (nitenpyram) Oral Flea Treatment for Cats, Fast Acting Tablets Start Killing Fleas in 30 Minutes, Cats 2-25 lbs, 6 Doses
  • QUIICKLY KILL FLEAS: One oral flea pill starts killing fleas...
  • QUALITY TESTED: Backed by research and recommended by vets, this...
  • NO PRESCRIPTION NEEDED: This Capstar flea and tick tablet is...
  • COUNTER RE-INFESTATIONS: If your pet gets re-infested with fleas,...
  • USE FOR CATS UNDER 25 lbs: The 6 doses of Capstar Cat flea...

Petarmor Plus for Dogs Flea and Tick Prevention for Dogs, Long-Lasting & Fast-Acting Topical Dog Flea Treatment, Large 45-88 lbs 

This topical application works very fast in eradicating fleas, ticks, and their eggs and larvae. Its annihilating effect can be felt within twenty-four hours, while the protection it gives can last for three months. Each package contains six doses of topical flea treatment that are also waterproof.

PetArmor Plus Flea and Tick Prevention for Dogs, Dog Flea and Tick Treatment, Waterproof Topical, Fast Acting, Large Dogs (45-88 lbs), 3 Doses
  • TRUSTED, VET QUALITY FORMULA: Containing fipronil and...
  • BREAK THE FLEA CYCLE: Unlike other flea and tick treatments that...
  • EASY-TO-USE, LONG-LASTING: PetArmor Plus flea and tick treatment...

Advantus (Imidacloprid) Flea Chews for Dogs, Chewable Flea Treatment 

These are chewable tablets that start to eliminate fleas in just an hour. It is very soft to chew, has a great taste, and can be bought even without a prescription. This is ideal for dogs aged 10 weeks and older.

Advantus (Imidacloprid) Chewable Flea Treatment for Large Dogs, 30 Count, 23-110 Pound
  • Contains 30 soft chews for large dogs: A single dose of Advantus...
  • Although it does not prevent fleas, Advantus works to kill them,...
  • Large dog chewable flea treatment for dogs and puppies age 10...
  • Advantus for dogs is a convenient, savory soft chew
  • Available without a prescription

Adams Plus Flea & Tick Shampoo with Precor 6 Fluid Ounces 

This shampoo product has been popular for dogs and cats infested with fleas, ticks, and lice. It can reduce and prevent the growth of these pests for up to 28 days due to its insect-eliminating properties. It also has aloe, lanolin, and oatmeal that promote rich and creamy skin on pets.

Adams Plus Flea & Tick Shampoo with Precor for Cats, Kittens, Dogs & Puppies Over 12 Weeks Of Age |Sensitive Skin Flea Treatment for Dogs & Cats |Kills Adult Fleas, Flea Eggs, Ticks, and Lice |6 Oz
  • KILLS ADULT FLEAS & FLEA EGGS - Provides flea treatment, killing...
  • KILLS TICKS - Adams Plus Flea & Tick Shampoo With Precor kills...
  • KILLS LICE - Lice travel on pets, too, and Adams Plus Flea & Tick...
  • SENSITIVE SKIN FORMULA - Formulated with soothing aloe vera,...
  • CONDITIONS AND RESTORES SHINE - Leaves your pet’s coat soft,...

K9 Advantix II Flea and Tick Prevention for Medium Dogs, 11-20 Pounds 

If you are in search of a topical formula that is efficient in flea and tick prevention, then this product from the K9 Advantix is the best fit for you. It consists of Imidacloprid (8.80%), Permethrin (44%), Pyriproxyfen (0.44%), and other ingredients that potently deter fleas within 12 hours.

K9 Advantix II Medium Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 11-20 lbs. | 6-Mo Supply
  • K9 Advantix II Medium Dog 30-day treatment & prevention protects...
  • Kills fleas within 12 hours of application
  • Vet-recommended formula kills & repels on contact so fleas...
  • Easy-to-apply topical treatment is fragrance-free and waterproof...
  • No prescription needed

Amazon Brand - Solimo Flea and Tick Topical Treatment for Cats (Over 1.5 Pounds), 3 Dose/6 Dose 

This is a topical treatment for cats that continuously eliminates fleas, flea eggs, and larvae, and ticks for up to thirty days from application. It is also fast-acting and waterproof, so it does not lose its effectiveness even if the cat gets wet. Apply this product on dry skin for best results, particularly between the cat’s back and shoulder blade.

Amazon Basics Flea and Tick Topical Treatment for Cats (over 1.5 pounds), 3 Count (Previously Solimo)
  • Same product, new look—This product is identical in...
  • Amazon Basics Flea & Tick starts eliminating fleas and ticks...
  • Active ingredients prevent flea infestations by killing flea...
  • One application provides up to 30 days of protection
  • Waterproof: 24 hours after application your pet's treatment is...

Cheristin for Cats Topical Flea Treatment – Effective Through 6 Weeks 

This topical formula provides instant flea and ticks relief in just twelve hours. Spinetoram, the active ingredient of this product, is known to be a powerful ingredient that has the capacity to eliminate 98% to 100% of fleas in cats. It is ideal for cats and kittens who weigh more than 1.6 pounds and are over eight weeks old.   

Cheristin for Cats Topical Flea Prevention – Starts Killing Fleas in 30 Minutes, 6 Dose
  • Topical flea treatment and prevention designed just for cats
  • Long-lasting treatment protects against fleas through 6 weeks
  • One-size-fits-all for all cats and kittens over 1.8 lbs and 8...
  • Twist-to-use applicator for clean, easy application
  • Starts killing fleas in only 30 minutes and kills 98-100% of...

Related: How To Kill Fleas? Best Flea Killers

List of Sources

Potter, M. (2018). Flea Control and Prevention. University of Kentucky.

Fleaborne Diseases of the United States. (2020). Centers for Disease Control and Prevention.

Fleas. Better Health Channel.

Controlling Fleas. Texas A&M AgriLife Extension.

Fleas. University of Missouri.

Thomas Matthews
Follow me