How can weather be defined

These pages will define each parameter and explain why it is important to measure and monitor. Measurement methods and technology can be found in the Measurements section. Call Fondriest Environmental. Skip to Content. Call Toll Free: Britannica English: Translation of weather for Arabic Speakers. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Log in Sign Up. Save Word. Essential Meaning of weather. The weather today will be hot and dry. It looks like we're in for some weather tomorrow. Check the weather before you make plans. Full Definition of weather Entry 1 of 3. Definition of weather Entry 2 of 3.

Definition of weather Entry 3 of 3. Weather involves the atmospheric conditions and changes we experience in the short term, on a daily basis. Climate involves average atmospheric conditions in a particular place over a long period of time this is often understood to mean 30 years or more. Is the place where you live consistently rainy and cool? Is it always 72 degrees and sunny? More extreme and more frequent storms, floods, and droughts are some examples of weather events that are being fueled by a warming of the climate.

Example: When you live in an extremely dry climate, a rare day of rainy weather is thrilling. Want to learn more? Read the full breakdown of the difference between weather and climate. Should weather or climate be used in the following sentence? The weather is pretty warm year-round, though, hovering at around 75 degrees. The shutoffs that began late Monday are a fairly new and controversial practice, and their use last year triggered investigations while utilities defended them as necessary in the face of increasingly wild weather.

The US is experiencing one of its worst years for wildfire outbreaks thanks to hot weather and a lack of firefighters. While restrictions have eased in some parts of the country, the situation—particularly as we head into cooler fall weather and back to school—is proving to be fluid.

And, of course, there have been far more disasters caused by extreme weather than terrorist attacks. Frustrating as regulars find these fair- weather exercise interlopers, they were also all beginners once, he says.

During heavy rains, for example, the differences in the amount of rainfall between regions in proximity are often great.

The diurnal cycle exists everywhere but varies by climate type. Within a climatic zone it varies by season. Louis, with a continental climate, has an average diurnal range of In January, however, the St.

Averages All weather information for a given area is derived by a local weather station, and daily high and low temperature values for a month are averaged. These two values are averaged to yield the "mean," or "normal," monthly temperature. The highest average values of precipitation occur in locales with strong maritime or orographic influences.

These values occur in warm or cold climates. Extremely low precipitation averages occur in interior zones far from moist air or at locales where cold oceanic currents stabilize the air. In a similar fashion, the daily wind and humidity values are averaged to yield their monthly means, and the daily rainfall and snowfall values are totaled — along with the number of days with rain, thunderstorms, freezing temperatures, and clear or cloudy skies. Certain monthly extremes are also identified on a monthly basis, including the highest and the lowest temperature, the heaviest one-day precipitation rain or snow , and the fastest wind speed.

These summaries are often combined and become the basis for describing the weather of a region. Atmospheric scientists also study weather-producing conditions, such as fronts and high- and low-pressure areas, to describe how the region's weather is produced. Extremes Weather variations that are excessive during a given time span are often called extremes.