General Information:
Representative weather data is necessary to run any infiltration model. LBNL has a library of approximately 240 representative weather sites (or locations) across the United States. These weather files have been selected to be representative of typical years for each location and are derived from the WYEC (Weather Year for Energy Calculations), TMY (Typical Meteorological Year), TRY (Typical Reference Year), and CTZ (California Climate Zones) weather tapes.

Each weather file contains outside temperature, humidity, wind speed and direction, and barometric pressure.

Help on the weather data selection:
If you know the most representative city, find it in the alphabetical list, highlight it and then click on Select STATION. You can see the selections for a given state by highlighting that state and the clicking on Select STATE. The city list will now contain only the cities from that state. To go back to the entire cities list, unhighlight the state and click on Select STATE.

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