Fall Allergies in Rochester: Ragweed, Mold, and Why Fall Feels Worse Than Spring –By Albert S Hartel MD
October 8, 2026 9:00 am
Rochester ranks among the toughest cities in the country for pollen allergies, and fall is often when patients feel it most. Spring gets the attention, but ragweed, mold, and the shift indoors can make September and October just as hard — sometimes harder.
Ragweed is the main driver. It starts releasing pollen in mid-August, peaks through September, and can linger until the first hard frost. One plant can release a billion pollen grains, and they travel for miles. In Western New York, that means itchy eyes, sneezing, congestion, and postnasal drip even on days that feel cool and clear. For people with asthma, the same pollen often tightens the chest and increases rescue-inhaler use.
Mold is the second fall trigger, and it is easy to miss. Fallen leaves, damp gardens, and closed-up houses all raise mold exposure. Raking, mulching, or spending time in a basement can set off the same symptoms as ragweed. Once the heat comes on, dust mites also rise. Windows close, humidity drops, and indoor allergens take over just as outdoor pollen is winding down.
From an allergist’s perspective, the useful question is which of these is actually driving your symptoms. A careful history and targeted testing can separate ragweed from mold, dust mite, and pet dander so treatment is not a guess. Daily second-generation antihistamines and a nasal steroid spray help many people. Saline rinses, showering after outdoor work, and keeping windows closed on high-pollen days reduce the load further.
For patients who are still limited every fall, allergy shots can change the pattern. Immunotherapy retrains the immune system to ragweed, mold, or other triggers and can reduce symptoms and medication needs for years after a full course. It is also one of the few treatments that can prevent allergic rhinitis from progressing into asthma.
If fall allergies are interrupting sleep, work, or school — or if your inhaler use climbs every September — a board-certified allergist can identify the specific triggers and build a plan before the next season peaks. In Rochester, waiting until the first frost is usually too late.