This section covers Macroclimate and Microclimate. Macroclimate refers to large scale regional weather conditions and long term trends in cloud cover, humidity and precipitation, and temperature. Microclimate is a function of short term, local fluctuations in light, temperature, and moisture at a particular site. These factors are affected by distinctive site conditions such as wind barriers and shade created by trees and other obstacles, the aspect (direction) and slope of a hillside, frost pockets, streams banks, etc. Both macroclimate and microclimate contribute to growing conditions, so knowledge of these factors should inform your selection and placement of crops.