A cleaning calendar for Alpharetta homes based on real Atlanta climate normals and certified pollen counts, so the work lands in the weeks it actually matters.
Generic spring cleaning lists assume a long winter followed by one big thaw. North Fulton does not work that way. Winters here are short and mostly mild, the spring tree pollen season can be extreme, summer is long and humid, and rain falls steadily all year. A calendar that fits Alpharetta looks different from one written for Chicago or Phoenix.
The months below come from the 1991 to 2020 climate normals for the Atlanta airport, the closest long-term station, and from the certified pollen counts kept by Atlanta Allergy & Asthma.
Normal yearly precipitation is 50.43 inches, and about 76 days a year bring a tenth of an inch or more. July is the wettest month at 4.75 inches; October, the driest, still averages 3.28. Wet floors at the back door are a twelve-month issue here.
Summer is hot and does not cool down at night. The normal July high is 90.1 degrees, the area averages 47 days at 90 or above, and July and August lows sit near 72. Winter is brief: about 36 nights a year reach freezing, January's normal low is 35.6 degrees, and normal yearly snowfall is only 2.2 inches, most of it in January.
Pollen is the defining event of the year. The Atlanta count reached 11,159 grains per cubic meter on March 30, 2025, and 6,563 on March 23, 2026, with pine and oak leading. Fall has a second, smaller season led by ragweed and cocklebur.
These are the coldest weeks of the Alpharetta year, and windows stay closed. Dust builds up on ceiling fans that are switched off for the season, on the tops of door frames and on the return air vents that run hard while the heat is on.
Good jobs for these months: wipe fan blades before you turn them back on, vacuum vent covers, wash throw blankets and pillow covers that got heavy use over the holidays, and clean the inside of windows while the glass is cold and streaks show. If a rare snow or ice day keeps everyone home, expect wet boots and muddy entry floors afterward.
This is the stretch to plan around. In 2025, every daily count from March 30 through April 6 was above 4,000 grains per cubic meter, and the station counts 1,500 as extreme for trees. Oak, pine, mulberry, sweet gum and sycamore all release at once.
During the surge, keep windows closed, change the HVAC filter at the start and end of the season, and leave shoes at the door. Wipe sills and window tracks weekly rather than daily, because a new layer arrives each morning. Save the big clean of screens, porches, outdoor furniture and window tracks for mid to late April, once the count falls.
Once tree pollen fades, this is the best window for a deep clean. Fans, blinds, baseboards and window tracks can be cleaned once and stay clean. It is also a good time to wash curtains and vacuum upholstery that sat through two months of pollen.
Get ahead of summer bathrooms now: clean grout, check caulk lines around tubs and showers, and make sure each bathroom fan actually pulls air.
July brings the highest normal temperatures and is also the wettest month on average. With nights in the low 70s, bathrooms and laundry rooms stay humid, and towels left in a pile can sour quickly. Run bathroom fans longer after showers, squeegee shower glass, and wash bath mats more often than usual.
Summer storms track water and mud indoors. A boot tray inside the garage door and a washable mat at each entry pay for themselves this time of year. Wipe up spills and standing water around sinks promptly, since nothing dries on its own in this weather.
Weed pollen takes over in early fall; on September 22, 2025, ragweed and cocklebur led the Atlanta count. Allergy sufferers notice it, though it is lighter than spring. October is the driest month of the year on average, which makes it a good time to clean outdoor furniture, garage floors and porches before putting things away.
Turn ceiling fans to their winter direction and dust the blades as you do.
As nights cool and the heat comes on, dust starts circulating indoors again. Before guests visit, clean the guest bathroom, wash the spare bedding and dust the rooms that sat closed most of the year. In a large Alpharetta house, those unused rooms can be a big share of the floor plan, so plan for them.
The questions Alpharetta homeowners ask most often about this topic, answered plainly.
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