The word diminishing means decreasing in number, or more rarely in the affected area.
"There will be diminishing showers today." "Fog will be diminishing later in the morning."
An anemometer is used in meteorology to measure wind speed. This is a common used instrument in the weather station.
I used a wind vane to see what direction was the wind blowing to
Yes the apostrophe's look correct.
Having such hot weather in winter was an abberation.
Some say mother nature controls the weather.
The world's nonrenewable resource reserves are ever diminishing.
Oil is a diminishing resource.
The value of the antique painting was diminishing with each scratch and crack that appeared on its surface.
Get the local weather forecast for any location in the world.
Hace buen tiempo. (Lit.: It makes good weather = It is good weather.)
How is the weather today? In a sentence: "The weather was terrible today."
The expected marginal utility of the next unit of water is diminishing.
His clothes stick to him when the weather is hot.
There are many reasons why the world's food supply is diminishing. Some of the causes include a larger population, less individuals going into agriculture as a career, and weather changes that are taking place.
Example: The amount of water in a glass will diminish when you drink some.
The looseness of his clothes helped keep him cool in the hot weather.
You didn't say which meaning you needed, so here are a couple of ideas. The weather is clear and calm today. Rain and wind will weather the rocks on the hillside.