Simplify the following text for a Grade 13 native English-speaking person.
Original: Climate The city has a Warm Summer Continental or Hemiboreal climate ( Dfb ) according to the KÃ ppen climate classification system , which is characterized by warm temperatures during summer and long and frosty winters .
Simplified: The city has a Warm Summer Continental ) ) climate ( Dfb ) according to the KÃ ppen climate classification system , which is characterized by warm temperatures during summer and long and frosty winters .