The answer to 'mouse season' is that mice can be a year-round problem, but their activity tends to peak in the fall and winter months. As the weather cools, mice will seek out warm, sheltered places to nest and find food, often entering homes and other buildings. This makes the fall and winter the most common 'mouse season' for many homeowners.
Mice are prolific breeders, with the ability to have multiple litters per year. This means their population can grow quickly, especially during the colder months when they are more likely to invade homes. Understanding the seasonal patterns of mice can help homeowners be proactive in preventing and managing infestations.