Metropolitan City of Cagliari the warmest month with an average temperature of that of about . African anticyclone activity can cause heat waves starting in June. From mid-June to mid-September rain is rare and appears in afternoon storms. The rainy season starts in September, but the first cold days come in December, usually the wettest month. Winds are frequent, especially the mistral and sirocco; in Summer days a marine sirocco breeze ("s'imbattu") lowers the temperature and the humidity. On the surrounding mountains, the climate is very different with plentiful average rainfall, cold winters, and mild warm summers (Csb in the Köppen climate classification). As
Illinois Zephyr and Carl Sandburg a few hundred feet from this train's route. The morning westbound/evening eastbound schedule complements the opposite schedule of the "Illinois Zephyr". During 2010, Amtrak contacted officials from communities in northeastern Missouri and western Illinois regarding the feasibility of extending the "Illinois Zephyr", plus "Carl Sandburg", southwards to Hannibal, Missouri and St. Louis. While a study for the expansion was not conducted, the project could be funded with a mix of both federal and state money. Today, a normal Amtrak "Illinois Zephyr" or "Carl Sandburg" consists of: Illinois Zephyr and Carl Sandburg The Illinois Zephyr and Carl Sandburg are a pair