The wind speed that is considered windy depends on the sustained wind speed. According to the National Weather Service, "breezy" is described as a sustained wind speed from 15-25 mph, while "windy" is a sustained wind speed from 20-30 mph. A "very windy" day is defined as sustained winds between 30-40 mph, and "strong, dangerous, high and damaging winds" are considered to be sustained winds between 40-73 mph. Hurricane-force winds are sustained at 74 mph or greater.