Complex sentence: The maximum temperature reached in Santander was 37.4 ° C on August 31,2009, and the minimum temperature -5.4 ° C on January 21,1957.
Split into simpler sentences: The maximum temperature reached in Santander was 37.4 ° C on August 31,2009. And the minimum temperature -5.4 ° C on January 21,1957.