Pest Control in Illinois

Weather differs from one part of Illinois to another. Across the communities we serve, July highs average roughly 85°F, ranging from about 80 to 90°F, while January lows average near 17°F. A typical year brings roughly 40 inches of precipitation, from about 32 inches in the driest of our cities to about 51 in the wettest, and about 123 nights a year at or below freezing. These figures are climate averages from local weather records for 476 cities, so they describe the pattern, not a forecast.

Hot, humid summers and hard, cold winters give pests two very different reasons to head for your walls. Warm months speed up breeding, so ants and mosquitoes can grow from a nuisance into an infestation quickly, and a small kitchen trail in June can become a full colony by August. Cold snaps then push rodents and overwintering insects indoors, often through gaps you never noticed.

The smartest treatment schedule follows that rhythm. Late spring is a good time to seal cracks, clear gutters and tackle ant trails before they build. Early autumn is when door sweeps, vent screens and pipe openings deserve attention, because that is when mice begin scouting for warmth, and a little caulk then can spare you a winter of scratching in the walls.