HAY FEVER IN WINTER?

Freeze-free days extend the growing season for pollen-producing plants. The number of freeze-free days has increased in all 197 U.S. cities analyzed since 1970. Of those cities, 164 have 30 to 60 or more additional freeze-free days each year. For seasonal allergy sufferers—people who experience allergic rhinitis or hay fever—this means the allergy season starts earlier in the spring or winter. In some climates, “seasonal” allergies have become year-round. Additionally, mold, fungus, pet dander, and dust mite allergies frequently cause the same symptoms as hay fever and can be more prevalent during winter. People with multiple allergies may find themselves experiencing symptoms throughout the year, with the most relief during the dry months of late summer and fall.

P.S. About 25% of adults and 20% of children suffer from symptoms of seasonal allergies.

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