Pest control in La Grande, OR

Pest season in La Grande

NOAA's 1991–2020 climate normals for the LA GRANDE, OR station show an average temperature of 49.4°F, about 17.4 inches of precipitation a year spread over roughly 51 days with measurable rain or snow, 136 nights at or below freezing and 31 days reaching 90°F or more. Only 5 months average 50°F or more, so the outdoor insect season is short, and the long cold season (about 136 freezing nights a year) is when mice and overwintering insects most often move into buildings. Average temperatures are at or above 50°F from about May through September.

Moisture and pests

With about 17.4 inches of precipitation a year, La Grande is fairly dry. Pests here are often drawn to the water a home provides, such as irrigation, leaks, drains and pet bowls, which is why kitchens, bathrooms and watered landscaping see most of the activity.

Homes and pest entry points

The median year built for housing in La Grande is 1966, and about 66% of its 5,826 housing units were built before 1980. Homes from this era often have settled foundations, aging weatherstripping and wood trim that can let pests in, and many have crawl spaces or basements worth checking for moisture. About 29% of housing units are in buildings with two or more units, where cockroaches and bed bugs can move between neighboring homes through shared walls and plumbing.

Services most relevant in La Grande

• Termite Controlmedian home built in 1966, with older wood framing
• Rodent Controlabout 136 freezing nights a year push mice indoors
• Bed Bug Treatment29% of homes in multi-unit buildings
• Cockroach Controlshared walls and plumbing in multi-unit buildings
• Ant Controlabout 5 months a year average 50°F or more
• General Pest Controlone call when you are not sure what the pest is

Owners, landlords and tenants

About 51% of occupied homes in La Grande are owner-occupied and 49% are rented. Homeowners, landlords and property managers can call to be connected; tenants should usually report pest problems to their landlord or property manager first, since leases and local rules often make treatment their responsibility.

Location

La Grande is in Union County and has no other town of 2,500 or more people within about 30 miles, so it is the main center for its area.

Sources: Census Bureau Vintage 2025 estimate (July 1, 2025) for population; American Community Survey 2020–2024 5-year (tables B25003, B25024, B25034, B25035); 2024 Gazetteer; NOAA NCEI U.S. Climate Normals 1991–2020 (annual and monthly).