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.
What is weather? The weather is just the state of the atmosphere at any time, including things such as temperature, precipitation, air pressure and cloud cover. Daily changes in the weather are due to winds and storms. Seasonal changes are due to the Earth revolving around the sun. What causes weather?