Recent research seems to indicate that bad weather cuts down on insect reproduction, at least for the short-term. As Smithsonian Magazine and other media outlets reported, when researchers studying insect behavior simulated changes in air pressure (which often signify stormy weather approaching), the bugs showed a significant decrease in mating and breeding activity.
This perhaps may be one silver lining of living in an area that tends to be plagued by bad weather. However, unless you plan to imitate the researchers and continuously create fake bad weather conditions, you can’t rely on this phenomenon of insect behavior to keep the pests from multiplying or invading your property.
However, a good alternative is using an insecticide with an insect growth regulator. This prevents insects from maturing and reproducing, effectively halting their breeding process. And you don’t have to endure nasty storms to achieve the same effect!