This paper founds the procedures of standard summer meteorological parameters in hot summer and cold winter region, determines the hourly meteorological model of dry and wet temperature change for sunny day, cloudy and rainy day, and builds up Chongqing’s standard summer meteorological parameter database.
Then based on hourly-degree method, this paper also analyzes the ventilation cooling loads with new concepts such as ventilation cooling load index (VCLI), ventilation cooling temperature degree hour (CDH), cooling wetness hour (CWH) and cooling enthalpy hour (CEH). The quantity and distribution of ventilation sensible, latent and total heat cooling loads statistically sum, which suggests the quantity of latent and sensible loads is so different in dimension and the distribution is seldom concurrent.