Get one year of historical daily temperatures for a single location from Meteosource

extract-daily-temperature.rb

#!/usr/bin/env ruby

require 'date'
require 'json'

today = Date.today
start = today - 365
(start...today).each do |date|
  json = File.read("weather/#{date}.json")
  data = JSON.parse(json, :symbolize_names => true)

  puts [date, data[:daily][:temperature], data[:daily][:temperature_min], data[:daily][:temperature_max]].join("\t")
end

fetch-weather-data.rb

#!/usr/bin/env ruby

require 'date'
require 'httparty'

API_KEY = 'xxx'
PLACE_ID = 'london'


def fetch_date(place, date)
  filename = "weather/#{date}.json"
  return if File.exist?(filename)

  puts "Fetching: #{date}"
  url = "https://www.meteosource.com/api/v1/standard/time_machine?place_id=#{place}&date=#{date}&timezone=Europe%2FLondon&units=metric&key=#{API_KEY}"

	res = HTTParty.get(url, :headers => {'Accept' => 'application/json'})
	raise "Failed to fetch data: #{res.body}" if res.code != 200

  File.open(filename, 'w') do |file|
    file.write(res.body)
  end
end

today = Date.today
start = today - 365
(start...today).each do |date|
  fetch_date(PLACE_ID, date)
end