Weather refers to temperature, moisture, wind speeds, and pressure at a given time and location. Climate refers to the frequency of these temperatures and wind speeds, as well as addressing factors in the Earth and ocean, such as soil moisture and salinity. Most scientists define climate as weather patterns that are consistent for at least thirty years.
Because climate and weather are closely related, they are often confused. A phenomenon might be an example of either one depending on context and the way it is stated. Therefore, speaking carefully and with forethought about weather and climate is the best way to avoid confusion. Be aware the even the media often makes mistakes when speaking of either one.
“August 8 is the hottest day in the last thirty years,” is an example of weather. Even though the temperature for that day is being compared to the last thirty years, the speaker is referencing the temperature for just that day. “The temperature has gradually increased in August every year for the past thirty years, with a peak on August 8,” is an example of climate. The speaker is referring to a trend taking place over three decades—though the temperature for August 8 is still just an example of weather.