1. Temperature: This refers to the average temperature throughout the year, as well as the range of temperature variation between the hottest and coldest months.

2. Precipitation: This refers to the amount of moisture that falls in the form of rain, snow, sleet, or hail. It also considers the pattern of precipitation, such as whether it is evenly distributed throughout the year or concentrated in certain seasons.

These two factors, temperature and precipitation, are used to create various climate classifications like the Köppen climate classification system.