How Does the Weather Affect Mosquitoes?

Here in Charlotte, NC, it’s been hot and it’s been rainy. In other words, conditions are ripe for mosquitoes. They seem to attack with an almost professional level of precision around this time of year, which means professional pest control is your best bet for keeping them at bay. Read on to learn about how they respond to different weather conditions so you can stay one step ahead.


Mosquitoes like it when it’s warm out, plain and simple. When temperatures warm up, mosquito eggs that have lain dormant all winter begin to hatch. While “warm weather” is enough of a cue to take precautions against mosquitoes, keep an eye out for when the thermometer climbs to 80 degrees. It’s at this temperature and higher that mosquitoes are at their most active—to a point.

It can actually be too hot for mosquitoes, which is somewhat comforting—at least something slows them down. So those days where it’s so hot you feel like you can’t move—and where it’s probably not that safe to be outside very long in the first place—mosquitoes bite less. They don’t stop biting, but the heat takes a toll on them as well, so they’re not as active.

However, it’s not all good news. While mosquitoes become less active in excessive heat, they become more infectious. The diseases they carry incubate faster, which means they’re primed and ready to be transmitted in less time. So right after an excessive heat spell, be on high alert. The mosquitoes will be hungry after laying low for a day or so, they’ll be active and on the hunt for food, and if they’re carrying diseases, those diseases will be more likely to spread.


There are two parts to the mosquito equation. Warmth + Wetness = You Getting Bit. That’s because mosquitoes need water to breed, standing water to be exact. In about an inch of water, a female mosquito can deposit more than 100 eggs. And those eggs hatch anywhere from 24 to 48 hours after the female mosquito lays them.

For the eggs to stay safe and hatch successfully, the water needs to stay undisturbed. Dump it out shortly after the rain finishes, and you should be fine. And if you’re in the middle of a rainy few days, don’t worry about any standing water from Day One. The continuing rain will disturb the eggs as it falls. But while all of that may sound reassuring, remember that mosquitoes have been around for a while, and they’re craftier than we’d like to think they are. They have a knack for laying their eggs in out-of-the-way pools of water that tend to get overlooked.


It’s never fun when temperatures drop back down as summer turns to fall, but at least it means you can say goodbye to mosquitoes for a while. But what exactly happens when it’s cold? Do the mosquitoes all die off?

Unfortunately, no. When temperatures head down below 50 degrees, mosquitoes actually hibernate. Their eggs don’t go anywhere either, instead lying dormant all winter and hatching when temperatures become more hospitable.  

We know this can sound daunting. But know that you can always count on Action Pest Exterminating for comprehensive mosquito control that includes treatment and prevention. Give us a call at 704-269-4162 for a free quote.