Pest Control in West Richland, WA

West Richland is one of the driest places you will find in Washington. The figures here are 1991-2020 NOAA climate normals from a nearby weather station, so use them as a guide, not a forecast. July highs average about 89 degrees, and July is the warmest month. January lows average around 29 degrees, and December is the coldest month.

Precipitation totals only about 7 inches in a typical year, and December is the wettest month at roughly 1.1 inches. Snow is essentially absent from the normals. What stands out is the heat and the cold nights: about 39 days a year reach 90 degrees or higher, and about 91 nights a year fall to freezing or below.

That swing matters for pest timing. Long hot stretches speed up ant colonies and wasp nests, so spring is the best moment for an exterior treatment. Cold nights then drive rodents and overwintering insects toward the warmth of houses, which makes early fall the time to seal gaps and clear clutter from garages. With so little rain, any leaking hose bib or sprinkler line becomes a magnet for insects, so fixing those is one of the cheapest forms of prevention.