How much annual precipitation is considered to be a "Humid" climate?

Answer 1

Humidity and rainfall are not directly linked. Were i live in NW England we have around 90% humidity all the time, but in western Scotland they have around 80% humidity but its slightly wetter their than here. To be fair though most humid places generally do have higher precipitation than less humid areas. Remember just because somewhere is humid it doesn't mean its warm!

Answer 2

Humidity refers to the amount of water vapour in the air not the rainfall. It can be very humid without it raining at all. All coastal areas are humid because the seabreeze brings humid air from over the ocean. Further inland it is less humid because the seabreeze doesn't get there or gets there much later. Seabreezes seldom bring rain.

The prevailing wind also makes a difference. In Australia, the southeast trade winds in summer bring air off the Tasman Sea to Sydney and Brisbane. This raises the humidity in those cities. In Perth, the same easterly winds are off the dry desert and the humidity is low - until the seabreeze comes in.

Answer 3

Good question. A tropical moist climate is one which has abundant rainfall exceeding 59 inches per year or 150 cm/yr. A moist sub-tropical climate has between 80 and 165 cm/y of rainfall (31 - 65 inches). Finally a moist continental climate has between 50 and 100 cm or (20 to 40 inches) rainfall per year.