When to clean what in a Nashville home, from February tree pollen and wet May floors to the July dew point and the cold snaps of January, based on NOAA climate normals and local pollen dates.
Nashville does not have four tidy seasons for cleaning. Tree pollen often shows up while winter is still hanging on, the wettest stretch lines up with the grasses in May, and ragweed lingers until the first hard frost. A calendar built on those local dates beats one copied from a northern spring cleaning checklist.
Each block below lists what the weather is doing, using NOAA's 1991 to 2020 normals for Nashville International Airport and the regional pollen calendar, and what that means for the house.
Nashville averages about 66 nights a year at or below freezing, most of them in these months, and the normal 4.7 inches of yearly snow falls mainly in January and February. Most years that means a handful of icy mornings rather than deep snow, but the exceptions are real: the airport recorded 7.6 inches on January 14, 2024, and it stayed on the ground for days.
By early or mid February, WSMV meteorologists note the first tree pollen. This is the window to wash or vacuum window screens and wipe sills before the heavy part of the tree season.
Vanderbilt University Medical Center names oak, maple, walnut, pecan and hickory as the trees that release the most pollen in Middle Tennessee in early spring, and tree season runs to about late April. Porches, cars and window sills turn yellow in the worst weeks.
March is also the start of the storm months. The March 3, 2020 tornado tracked more than 60 miles from Nashville to the east, and a stocked emergency kit is worth checking now.
May is Nashville's wettest month in a normal year, at about 5.02 inches of rain, and grass pollen runs from May through July. The May 2010 flood, when 13.57 inches fell in two days, is a reminder of how heavy spring rain can get here.
Expect mud, wet paws and grass clippings at every door. June dew points average near 65 degrees, and the air starts to feel heavy.
The normal July high is about 91 degrees, and Nashville averages about 54 days a year at 90 or hotter. July dew points average near 68 and August near 67. Air conditioning runs hard, so return vents and filters collect dust fast, and bathrooms stay damp.
Ragweed season runs from August into early October, according to WSMV, and Vanderbilt notes the allergy season ends only with the first hard frost. Fall is a good time for a second deep clean: the heat has broken, windows can stay shut, and the home gets reset before the holidays.
Once frost ends the pollen year, the house closes up and the focus moves indoors. Holiday guests, cooking and the heater all add dust and grease. The first freezing nights return, and the boot tray goes back by the door.
The questions Nashville homeowners ask most often about this topic, answered plainly.
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