NOAA National Climatic Data CenterData Links: Percent of Average Precipitationhttp://www.ncdc.noaa.gov/temp-and-precip/drought/nadm/indicesMetadataData Categories: Percent of Average PrecipitationPrecipitationTemporal InformationUpdate Frequency: Monthly Geographic InformationGeographic Region: North AmericaGeographic Division: Climate DivisionObserving Station