Weather archive in Frederick (airport), Maryland, METAR

FF, mean wind speed at a height of 10-12 metres above the earth’s surface over the 10-minute period immediately preceding the observation (meters per second)

FF, mean wind speed at a height of 10-12 metres above the earth’s surface over the 10-minute period immediately preceding the observation (kilometers per hour)

FF, mean wind speed at a height of 10-12 metres above the earth’s surface over the 10-minute period immediately preceding the observation (miles per hour)

FF, mean wind speed at a height of 10-12 metres above the earth’s surface over the 10-minute period immediately preceding the observation (knots)

FF, mean wind speed at a height of 10-12 metres above the earth’s surface over the 10-minute period immediately preceding the observation (Beaufort number)

FF10, maximum gust value at a height of 10-12 metres above the earth’s surface over the 10-minute period immediately preceding the observation (meters per second)

FF10, maximum gust value at a height of 10-12 metres above the earth’s surface over the 10-minute period immediately preceding the observation (kilometers per hour)

FF10, maximum gust value at a height of 10-12 metres above the earth’s surface over the 10-minute period immediately preceding the observation (miles per hour)

FF10, maximum gust value at a height of 10-12 metres above the earth’s surface over the 10-minute period immediately preceding the observation (knots)

FF10, maximum gust value at a height of 10-12 metres above the earth’s surface over the 10-minute period immediately preceding the observation (Beaufort number)