Data and Supplemental Plots for Trends in Sub-Daily to Daily Rainfall Data in Florida, 1990–2022

Rainfall data from 23 weather stations in Florida, sourced from the South Florida Water Management District (SFWMD), Northwest Florida Water Management District (NWFWMD), Global Historical Climatology Network-Hourly (GHCNh), and Remote Automatic Weather Stations (RAWS), were used to examine temporal trends over the period 1990–2022 of events with durations of 1, 2, 3, 6, 12, and 24 hours. Rainfall events were defined using a minimum inter-event time (MIET). A variety of statistical and trend-analysis methods were applied annually and seasonally, including quantile regression, extreme value analysis, run theory using the Mann-Kendall test, Sen-Theil slope, and Poisson and Negative Binomial tests. Threshold exceedance rates for extreme rainfall were also evaluated using a generalized additive model for location, scale, and shape (GAMLSS) and non-homogenous Poisson process (NHPP). This data release includes information on the GHCNh gage instrumentation type and changes over the period of record (POR; 1990–2022), the percent of available data per station and per year or season, results from the events analysis for a MIET of 2 and 7 hours, parameter estimates for all methods, and plots supporting the associated larger-work journal publication.