1. Conventional Rainfall is quite common in the equatorial regions. It is observed in the summers or the hotter part of the day.
2 Oreographic Rainfall usually occurs in mountainous regions. It occurs when the rain-bearing clouds strike a barrier and result in rainfall.
3. The boundary at which the cold air mass and hot air mass meet is called a front. It is observed typically in cyclonic rainfall.
4. Sleets are ice pellets which are formed when the precipitate freezes before it reaches the ground.