getDailyMinMaxTemp: Get the daily minimum (maximum) temperatures for a given weather stations

Description

Given a StationID and a set of dates, this function returns the Daily Minimum and/or Maximum temperatures recorded, along with timestamps

Usage

getDailyMinMaxTemp(station_id, start_date, end_date = NULL,
  daily_min = TRUE, daily_max = TRUE, station_type = "airportCode",
  opt_write_to_file = FALSE)

Arguments

station_id

is a valid 3- or 4-letter Airport code or a valid Weather Station ID (example: "BUF", "ORD", "VABB" for Mumbai). Valid Weather Station "id" values: "KFLMIAMI75" or "IMOSCOWO2" You can look these up at wunderground.com

start_date

is a valid string representing a date in the past (YYYY-MM-DD, all numeric)

end_date

(optional) If an interval is to be specified, end_date is a a valid string representing a date in the past (YYYY-MM-DD, all numeric) and greater than start_date

daily_min

A boolean indicating if the Minimum Temperatures are desired

daily_max

A boolean indicating if the Maximum Temperatures are desired Both daily_min and daily_max can be TRUE, but at least one of them should be TRUE.

station_type

= "airportCode" or "ID" (Wx call Sign)

opt_write_to_file

If TRUE, the resulting dataframe will be stored in a CSV file. Default is FALSE

Value

A data frame with each row containing:

Date and Time stamp (for when that day's minimum temperature was recorded)
Minimum Temperature for the station in Farenheit (or Celcius)
Date and Time stamp (for when that day's maximum temperature was recorded)
Maximum Temperature for the station in Farenheit (or Celcius)

Details

This functions fetches all the records for each date specified, but it only retaints the min and/or max record, along with the timestamp.