Temperature in Deg.C
      +-----+---------+---------+---------+---------+---------+---------+--+
      |     +         +*        +*        +         +         +         ** |
   15 ++     *        **        * *       **        *        ***       ***++
      |     **        **        * *       **       ***       * *       * * |
      |     * *       * *       * *       * *      *  *      * *      *  * |
      |     * *       * *       * *      *  *      *  *      * *      *   *|
   10 ++    * *      *  **     *  *      *  *      *  *      *  *     *   *+
      |    *  *      *   *     *  *      *  *      *  *      *  *     *    *
      |    *  *      *   *     *   *     *  *    **   *      *   *    *    |
      |    *  *      *   *     *   *    *   *  ***     *     *   *    *    |
    5 ++  *    *     *   *     *   *    *   *  *       *    *    *    *   ++
      |  **    *     *    *    *   *   *    ****       *    *    *    *    |
      * **      *   *     *   *     * *      **        *    *    **   *    |
      ***       *   *      *  *     ***                 *   *     **  *    |
    0 +**        *  *      *  *      *                   *  *      ** *   ++
      |           * *       * *                          *  *       **     |
      |           ***       ***                           **               |
      |     +      ** +     *** +         +         +         +         +  |
   -5 ++----+---------+---------+---------+---------+---------+---------+-++
           Thu       Fri       Sat       Sun       Mon       Tue       Wed
       A Week Ago                                                     Now