In this section, you can calulate different weather numbers. Here, you'll find easy ways to calculate many meteorological variables. Enter as many of the "Inputs" you have. Then, choose the units your input data is in. Then, adjust the units of the "Outputs" to the units you desire. For a quicker way of changing units, highlight the type of units you want at the beginning of the table. These numbers are derived from accurate meteorological sources. If you have any question as to what any of the variables are below, you can click-on their names for a definition.