v0.5.0

• Complete rewrite of package.

• Package now has the main function get_met_data(), where get_station_metadata() and station_coverage() provide information on the station and which additional data fields they have reported on.

• The get_met_data() function can bucketize observations so that even hourly observations are provided.

• Instead of needing to provide a range of years, any vector of years can be provided to get_met_data().

• The visibility parameter is now provided in the standard set of station observations.

• A more reliable method of getting the local times for each station has been implemented.

• Meteorological data files can be collected in a directory after download for later reuse.

• Additional data fields, when requested, are processed much more quickly than in previous releases.

• Tibbles are now returned instead of data frames.

• A pkgdown site has been generated.

v0.4

• Adds ability to discover existence of additional data fields (i.e., precipitation, solar radiation, etc.) and selectively output such data in data frames

v0.3

• Removes the get_tz_offset, the large shapefile object, and the dependencies on the lubridate, sp, and proj4 packages
• Greater use of dplyr tables and functions to greatly increase processing speed
• Functions are resilient to missing years of data within year ranges provided

v0.2

• added function get_ncdc_station_info to obtain data frame of all known met stations, and, to filter list of stations by geographic bounding box and/or by years of available data
• added function select_ncdc_station to take the data frame produced by get_ncdc_station_info and aid in obtaining a selection of a single station; the resulting identifier string can be passed to get_ncdc_station_data to fetch data for the selected station

v0.1

• contains function get_ncdc_station_data (to fetch data and create a data frame) and helper function get_tz_offset (to determine time zone offset and correct times to local time)