Weather - RegexOld

using System;
using System.Linq;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Globalization;


public class Program
{
	public static void Main()
	{
		Dictionary<string,Dictionary<double,string>> cityTempWeather = new Dictionary<string,Dictionary<double,string>>();

		while (true)
		{
			string input = Console.ReadLine();

			if (input == "end")
			{
				break;
			}

			string regex = @"((?<town>[A-Z]{2})(?<temp>\d+\.\d+)(?<weather>[A-Za-z]+))\|";

			if (Regex.IsMatch(input,regex))
			{
				Match match = Regex.Match(input,regex);

				string city = match.Groups["town"].Value;
				double temperature = double.Parse(match.Groups["temp"].Value);
				string typeOfWeather = match.Groups["weather"].Value;

				if (char.IsLower(typeOfWeather[0]))
				{
					typeOfWeather = typeOfWeather.ToLower();
				}
				else
				{
					typeOfWeather = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(typeOfWeather);
				}

				if (!cityTempWeather.ContainsKey(city))
				{
					cityTempWeather.Add(city, new Dictionary<double,string>());
					cityTempWeather[city].Add(temperature,typeOfWeather);
				}
				else
				{
					cityTempWeather[city]=new Dictionary<double,string>();
					cityTempWeather[city].Add(temperature,typeOfWeather);
				}
			}
		}

		foreach (var kvp in cityTempWeather.OrderBy(x=>x.Value.Keys.Average()))
		{
			string city = kvp.Key;

			foreach (var kvpValue in kvp.Value)
			{
				double temperature = kvpValue.Key;
				string type = kvpValue.Value;

				Console.WriteLine("{0} => {1:f2} => {2}",city,temperature,type);
			}
		}
	}
}