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What Time of Year Do Mosquitoes Come Out?

By: Kari Warberg Block

Can you name one person who loves mosquitoes? We’re drawing a blank too! While we know that each and every little thing on this amazing planet is valuable and serves a purpose, it’s hard to understand that concept when it comes to these little critters. To the average Joe and Jane, they are simply a nuisance to be avoided.

So you may be wondering, when exactly is mosquito season? When does the season end? What environments do these insects thrive in? If your goal is to avoid mosquito bites and keep these annoying pests away, it’s good to know answers to these questions.

These pests do come during a certain time and do eventually go away, but this all depends on where you live. In this article we’ll break this all down for you so that you’ll be prepared and know when to stock up on repellents like Stay Away® Mosquitoes.

 

Conditions They Love

Mosquitoes tend to thrive in 70+ degree weather. Since they can’t regulate their body temperature, they’re susceptible to cold temperatures. When the outside temperature drops below 50 for an extended period of time, they become inactive or hibernate until the temperature rises. If the temperature stays above 50, they are most likely still out and about lurking in the shadows.

The first three stages of their life cycle occur in water, and the last stage is when they become a flying adult mosquito. This is when people have to worry about getting bit, but only by females.

This means these pests can plague Americans any time of year when the temperature is right and there’s water nearby. If you live in the warmer, southern regions, you know exactly what I’m talking about. So, let’s break it down by region to give a clear view of when these little pests are out.

When is Mosquito Season in the US?

Northeast Region

Mosquito Season: Begins mid-April to early-May and ends mid to late-October.

These pests come out for the shortest period of time in the Northeast region of the US. This includes New England, NY, NJ, PA and Connecticut. Typically once you reach the end of October, you guys have it made! But don’t get too comfortable, your warm summers bring the mosquitoes out in full force. There is no shortage once they move in.

Southeast Region

Mosquito Season: Begins as early as February and doesn’t end until November.

The southeast area of the US is hot, humid, and typically experiences mild winters, unless you live in the uppermost segment of the region like Virginia. So, this should come as no surprise that the south has some of the harshest seasons when it comes to these insects.

According to pests.org, being the warmest and wettest section of the country, the south allows the perfect conditions for breeding. Unfortunately, your relief is only an average of two months out of the year. Any Floridian knows that there is little relief at all. In fact, Florida is likely to have mosquitoes breeding all year long.

 

Midwest Region

Mosquito Season: Begins between April and May and ends in October.

This may be one of the most interesting sections in the country climate-wise. While this area experiences brutal winters, their summers are hot and muggy! By this point, we know that hot and humid means mosquitoes. Surprisingly, the Midwest tends to report more mosquito-borne diseases, like West Nile Virus, than any other part of the country.

 

Southwest Region

Mosquito Season: Begins between February and April and doesn’t end until around November.

Similarly to the Southeast, this region has a longer season than other parts of the country. Although some of the states have desert-like conditions, they are not exempt from the bloodthirsty pests. Remember, these bugs only need a small amount of water to thrive! The Arizona Department of Health Services suggests that you check for standing water every week during the season.

 

Northwest Region

Mosquito Season: Beginning mid-April and ending early-October.

Finally, we wrap up the continental US with this region. The timing in this area pretty much mirrors the Northeast region. You all are fortunate to have a “short” – and I use that term lightly – season. Thankfully, the rainy season doesn’t directly align with mosquitoes, or this would be one of the worst places for these pests. Whew!

 

Hawaii and Alaska

Alaska Mosquito Season: Between June and August.

It comes as no surprise that Alaska rarely has a problem with these insects. However, they do have a type called the northern house mosquito, which is the most common type found in the northern region of the US.

Hawaii Mosquito Season: Right conditions year-round.

Hawaii, on the other hand, is most similar to south Florida. When you think of this state, you imagine warm, sunny weather, lush greenery, and breathtaking beaches. Because of that, Hawaii has the right conditions for these bugs year-round.

 

What Time of Day Do They Come Out?

Experts say the time of day they are most likely to attack depends on the type of mosquito. Generally, they like to avoid direct sunlight because it can lead to dehydration. Therefore some species are most active during the early morning before the sun is completely out, while others come out in the evening when the sun is going down. The general consensus is that you are most vulnerable around dusk.

 

Protect Yourself

If you live in one of the areas with a lengthy season, there are a few steps you can take to help prepare before it hits:

  • Remove any standing water – Female mosquitoes will lay their eggs in any stagnant water, including your backyard kiddie pool, bird bath, puddles, and ponds. Avoid letting water build up near and around your home.
  • Clean your gutters – Clear debris from your gutters regularly as leaves can collect and cause water build up which creates a perfect breeding ground for these insects!
  • Wear proper clothes and avoid peak hours – You can protect yourself by wearing long sleeves and pants to keep these insects off your skin. If you want to enjoy the outdoors, consider avoiding peak hours for mosquito activity, essentially dawn and dusk.


As you can see, no matter where you live, there is always the threat of being preyed upon by those pesky creatures. Be sure to protect yourself from those disease-carrying insects. Check with your state’s health services office to stay up on current trends and forecasts for the season. If you are looking for an effective insect repellent solution, check out Stay Away® Mosquitoes and make yourself invisible to pests.

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