Weather - OK

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace Weather
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            Regex p2 = new Regex(@"([A-Z]{2})(\d+\.\d+)([A-Za-z]+)(?=\|)");
            var dict = new Dictionary<string, SortedDictionary<float, string>>();

            while (input != "end")
            {
                Match m = p2.Match(input);
                if (m.Success)
                {
                    string city = m.Groups[1].Value;
                    float temperature = float.Parse(m.Groups[2].Value);
                    string weather = m.Groups[3].Value;

                    if (dict.ContainsKey(city))
                    {
                        dict[city] = new SortedDictionary<float, string> { { temperature, weather } };
                    }
                    else
                    {
                        dict.Add(city, new SortedDictionary<float, string> { { temperature, weather } });
                    }

                }
                input = Console.ReadLine();
            }


            //(var item in dict.OrderBy(x => x.Value.temp))
            dict = dict.OrderBy(x => x.Value.First().Key).ToDictionary(x => x.Key, x => x.Value);
            foreach (var item in dict)
            {
                Console.Write(item.Key + " => ");
                foreach (var i2 in item.Value)
                {
                    Console.Write(i2.Key + " => " +i2.Value);
                }
                Console.WriteLine();
            }
        }
    }
}