International and regional weather reports are often misleading when Wellsville's weather is reported. Meteorologists including the National Oceanic and Atmospheric Administration (NOAA) gather their weather data of the Wellsville area from meteorological devices located at the airport, at an elevation of above sea level. The village of Wellsville is at , lower and protected from the winds in the Genesee River Valley. Wind speeds and temperature, as well as precipitation often differ greatly, especially in the spring and the fall, between the village and the top of the mountain where the airport is located (northeast leg of Niles Hill). Sometimes the temperature varies between the village and the tops of the surrounding hills.