Used often in meteorology to discuss weather conditions and forecasts. Bring an umbrella; the precipitation levels will be high tomorrow.
Pro Tip 2/3
Not Just Rain
Remember, precipitation includes all forms of water, like snow and hail, not just rain. We expect some precipitation this winter, possibly snow or sleet.
Pro Tip 3/3
Describing Intensity
Use adjectives like 'heavy' or 'light' to describe the amount and intensity. Due to light precipitation, the event will proceed as scheduled.