Spokane's pollen season has become hard to ignore. Here is what the Asthma and Allergy Foundation of America reports, and how to keep tree, grass and weed pollen down in your home.
The Asthma and Allergy Foundation of America ranked Spokane 9th among its 2026 Allergy Capitals, up from 82nd the year before. If that matches what your nose has been telling you, there is good news: household routines can make a real difference. This is not medical advice, so talk to your doctor about treatment. Here is the housekeeping side.
The foundation says that after a wet 2024 to 2025 winter, trees in Spokane produced unusually heavy pollen in spring 2025, and grasses released more pollen earlier than the year before.
It describes three broad waves: tree pollen starting as the ground warms in late winter and spring, grasses in late spring and summer, and weeds from late summer until the first hard freeze. So pollen is a concern for a good part of the year here, not just for a few weeks.
Spokane's dry summers play a part as well. July and August are the driest months, with normal precipitation of 0.42 and 0.47 inches, so there is little rain to wash pollen out of the air.
Pollen you stop at the door is pollen you never have to clean up. These habits cut down what gets in.
Dust with a damp cloth. A dry duster only sends pollen back into the air. A slightly damp microfiber cloth picks it up.
Vacuum with a good filter. A HEPA filter holds fine particles rather than blowing them back out. Vacuum carpets and upholstery regularly in peak season.
Wash bedding weekly in hot water. That is where you spend the most time breathing. Pillow and mattress covers help as well.
Wipe sills and window tracks. That is where pollen collects when a window has been open. Damp wiping works best.
Work from the top down. Do ceiling fans and shelves first, floors last. That way you are not cleaning the same dust twice.
Pollen and smoke have different rules. The Spokane Regional Clean Air Agency says the region has averaged 7.3 days of unhealthy air from wildfire smoke a year over the last 10 years. During smoke events, it advises keeping windows closed, using a HEPA filter in a clean-air room, and avoiding vacuuming and dusting unless the vacuum has a HEPA filter.
So on a smoky day, the normal pollen routine pauses. Wait for the air to clear, and then wipe down with a damp cloth. Wood burning adds to the problem too, and the agency issues wood burning restrictions when fine particle pollution rises, most often in fall and winter.
Pollen is not the only trigger. The Washington State Department of Health advises fixing moisture problems, drying water-damaged items within 24 to 48 hours, and hiring a professional for mold covering more than about ten square feet. Cleaners do not remediate mold, so ongoing dampness needs the right trade.
Older homes need some care, too. About half of the homes in Spokane were built before 1960, and the EPA says settled lead dust in homes from before 1978 can re-enter the air when a home is vacuumed or swept. Damp wiping and a HEPA vacuum make sense for that reason as well.
A Recurring House Clean on a weekly or bi-weekly schedule keeps floors and surfaces under control through the worst months, which is often a relief for the person with the allergies, since doing the dusting yourself can set off symptoms. A One-Time Deep Clean goes further into blinds, baseboards, window tracks, and fans and vents wiped in place.
Tell your cleaner about any sensitivities, including fragrance. The seasonal calendar shows when each pollen wave tends to come.
The questions Spokane homeowners ask most often about this topic, answered plainly.
TotalCare Cleaning will service Spokane and surrounding areas with background-checked cleaners and is insured up to $1 million. Re-clean guarantee: if we missed something, tell us by the end of the next day and we come back to fix it. Beyond Clean. TotalCare.
