Retrieve Daily Weather Data from AZMET

Retrieves daily data from the Arizona Meteorological Network API. For a list of weather stations and their locations see station_info, or visit https://azmet.arizona.edu/about.

Usage

az_daily(station_id = NULL, start_date = NULL, end_date = NULL)

Source

https://azmet.arizona.edu/

Arguments

station_id

station ID can be supplied as numeric vector (e.g. station_id = c(8, 37)) or as character vector with the prefix "az" and two digits (e.g. station_id = c("az08", "az37")). If left blank, data for all stations will be returned.

start_date

A length-1 vector of class Date, POSIXct, or character in YYYY-MM-DD format. Will be rounded down to the nearest day if more precision is supplied. Defaults to the day before the current date (i.e., the most recent complete day) if left blank.

end_date

A length-1 vector of class Date, POSIXct, or character in YYYY-MM-DD format. Will be rounded down to the nearest day if more precision is supplied. Defaults to the day before the current date (i.e., the most recent complete day) if left blank.

Value

A tibble. For units and other metadata, see https://azmet.arizona.edu/about

Details

If neither start_date nor end_date are supplied, the most recent day of data will be returned. If only start_date is supplied, then the end date defaults to the day before the current date (i.e., the most recent complete day). Supplying only end_date will result in an error.

Note

If station_id is supplied as a vector, multiple successive calls to the API will be made. You may find better performance getting data for all the stations by leaving station_id blank and subsetting the resulting dataframe. Requests for data from all stations for more than 6-12 months may take considerable time.

See also

az_15min(), az_heat(), az_hourly(), az_lw15min(), az_lwdaily()

Examples

if (FALSE) { # \dontrun{
# Most recent data for all stations:
az_daily()

# Specify stations:
az_daily(station_id = c(1, 2))
az_daily(station_id = c("az01", "az02"))

# Specify dates:
az_daily(start_date = "2022-09-25")
az_daily(start_date = "2022-09-25", end_date = "2022-09-26")
} # }