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Seattle’s maritime climate is famous for long, wet winters and mild temperatures, not for deep cold and heavy snow. But when Arctic blasts or unusual weather patterns bring snow and hard freezes to the region, the change can have outsized effects on pest behavior and the risks they pose to homes, businesses and landscapes. Even…

Ravenna’s tree-lined streets and parks make it one of Seattle’s most attractive neighborhoods — but that same canopy, older housing stock, and Pacific Northwest winter weather also create ideal conditions for pests seeking warmth and shelter. Seattle winters are typically cool and wet rather than brutally cold, so rodents, insects and small wildlife often move…

As temperatures drop, residents in Northgate often notice an unwelcome uptick in rodent activity — and garages are among the first places rats choose to exploit. For opportunistic species like Norway (brown) rats and roof rats, the colder months mean a shrinking supply of natural food and fewer warm, sheltered outdoor nesting sites. Garages, with…

In university neighborhoods, where older housing stock, multiunit rentals, and high occupant turnover are common, moisture problems are often the quiet trigger behind larger pest infestations. Condensation from poor ventilation, leaks from aging plumbing, clogged gutters, and inadequate grading around foundations create persistent damp pockets in basements, crawlspaces, wall cavities and attics. Those damp areas…

West Seattle’s winters are deceptively inviting — damp, mild and often rainier than the rest of the year. Those exact conditions that make the outdoors soggy and unappealing to homeowners create an ideal microclimate beneath many houses. Crawl spaces — the shallow, often dark voids between the ground and the floor of a home —…

Winter in Magnolia — like much of Seattle — brings cool, wet weather rather than deep freezes. That mild, maritime climate, combined with older homes, leafy yards and shoreline pockets, makes Magnolia especially inviting to animals and insects seeking warmth, food and dry shelter. Rather than disappearing entirely, many common pests shift behavior in winter:…

Each January, downtown Seattle sees a predictable uptick in rat activity, and the city’s winter weather is a major reason why. Seattle’s January climate—mild but persistently wet, with frequent storm cycles, saturated soils and cooler nights—creates conditions that push rats out of their usual burrows and into the built environment where people live and work….

Beacon Hill’s brick facades, narrow lanes, and gaslit charm make it one of the most picturesque historic neighborhoods in the country — but those same architectural features that define its character also create inviting conditions for pests once the temperature drops. Older homes in this district were built for a different era of construction and…

When cold weather settles over Wallingford, rodents that spend warmer months outdoors start looking for reliable shelter and food. Mice, rats and other commensal rodents often move into houses, attics, crawl spaces and garages to escape the elements, breed in protected spaces, and take advantage of stored food. Because these animals are stealthy and reproduce…

Seattle’s long, cool rainy season — stretching from roughly late fall through early spring — does more than keep umbrellas in steady rotation; it reshapes the local pest landscape. In neighborhoods around Green Lake, where homes, mature trees and a popular urban lake sit cheek-by-jowl, persistent moisture changes where pests live, breed and seek shelter….