In the summer, the thermometer reaches an average 20 Celsius (68 Fahrenheit), and the winter is a comfortable 0 to 5 Celsius (32 to 41 Fahrenheit).
(the thermometer; reaches; an average 20 Celsius; L:In the summer) (the winter; is; a comfortable 0 to 5 Celsius)
the thermometer the winter
reaches is
an average 20 Celsius L:In the summer
a comfortable 0 to 5 Celsius