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Abstract
The microcomputer program USCLIMAT.BAS provides precipitation probabilities and simulates data for daily precipitation, maximum temperature, minimum temperature, and solar radiation for an n-year period at a given location within the contiguous United States. The model is designed to preserve the dependence in time, the internal correlation, and the seasonal characteristics that exist in actual weather data. Daily maximum temperature, minimum temperature, and solar radiation data are simulated using a weakly stationary generating process conditioned on the precipitation process described by a Markov chain-mixed exponential model. Parameters for specific stations within a region can be accessed directly, or they can be estimated for points between stations. The seasonal variations of parameters are described by the Fourier series. Information on the type of equipment needed to run the model and an example of running the model are provided.