Retail WeatherSpend℠: September 2025

Overall, the U.S. saw cooler temperatures in September, an environment that would generally benefit early-autumn demand for apparel and other seasonal categories, though, as is often the case, regional differences were significant.

Weather-driven gains vs. September 2024 for cold-weather merchandise were strong across the Southwest, Southeast, Plains, and parts of the Midwest. However, these gains were offset by warmer comps in highly populated markets along the West Coast and the Northeast between DC and Boston. For example, Fleece saw a year-over-year weather boost of +8% in the Southeast but a negative weather impact of -3% in the Northeast. Similarly, weather-driven demand for Heaters was +22% in the Southwest but -3% in the Northeast.

The “where” mattered for overall sector sales as well. The following WeatherSpend examples quantify how weather, compared to September 2024, impacted topline performance across different markets and retail sectors.

Planalytics generates WeatherSpend metrics in partnership with Facteus, isolating the impact of the weather on spending for retail sectors and specific businesses.

Contact Planalytics to learn more about how weather analytics can help your business.