Returns a dataframe of average daily weather values for a particular county, year, weather variables, and/or specified coverage.
A character string of the five-digit U.S. FIPS code of a U.S. county.
A four-digit number or vector of numbers indicating the year or
years for which you want to pull hourly data. Values for
A character vector specifying desired weather variables. For
TRUE / FALSE to indicate if you want the function to average daily weather data across multiple monitors.
A numeric value in the range of 0 to 1 that specifies the desired percentage coverage for the weather variable (i.e., what percent of each weather variable must be non-missing to include data from a monitor when calculating daily values averaged across monitors).
This function serves as a wrapper to several functions from the
package, which provides weather data from all relevant stations in a county.
This function filters and averages across NOAA ISD/ISH stations based on
user-specified coverage specifications.
A list with five elements. The first element,
a dataframe of hourly weather data averaged across multiple stations,
as well as columns (
"var"_reporting) for each weather variable
showing the number of stations contributing to the average for that
variable for each hour.
station_df is a dataframe of station
metadata for each station contributing weather data. A weather station
will have one row per weather variable to which it contributes data. In
addition to information such as USAF and WBAN ids and station names, this
dataframe includes statistical information about weather values
contributed by each station for each weather variable. These statistics
include calculated coverage (
calc_coverage), which is the percent
of non-missing values for each station and variable for the specified
standard_dev (standard deviation),
range values for each station-weather variable
combination. The element
radius is the calculated radius within
which stations were pulled from the county's center. Elements
lon_center are the latitude and longitude of
the county's geographic center.
Observation times are based on Coordinated Universal Time Code (UTC).
For more information on this dataset and available weather and flag/quality variables, see ftp://ftp.ncdc.noaa.gov/pub/data/noaa/ish-format-document.pdf.
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