This is based on 16 tower ounces, each ounce divided as the tower ounce. It never became a legal standard in England; the use of this pound waxed and waned with the influence of the Hansa itself. A London pound was equal to 7,200 troy grains (16 tower ounces or, equivalently, 15 troy ounces).
The state of the atmosphere at a particular time and place. Weather is described by variable conditions such as temperature, humidity, wind velocity, precipitation, and barometric pressure. See also atmosphere; climate; clouds; lightning; rain; snow; sun; thunder; wind.
Introduction â¢ Weather is the state of the atmosphere at a given time andplace. â¢ Climate represents average weather conditions for a placeover a long time period (years). Weather represents the state of the atmosphere at a given timeand place. Characterizing weather requires that we measureconditions such as temperature, precipitation, air pressure,wind speed and direction, humidity.