Meteorological team at 1:00, 5:00, 9:00, 12:00, 14:00, and 18:00 respectively measured the temperature of a certain place as 12°C, 15°C, 18°C, 21°C, 29°C, 19°C, calculated What is the average temperature of the day?
气象小组在一天的1点、5点、9点、12点、14点、18点，分别测得某地的温度是12℃、15℃、18℃、21℃、29℃、19℃，算出这一天的平均温度是多少？
<gadget id="calculator">12 + 15 + 18 + 21 + 29 + 19</gadget>
<output>114</output>

<gadget id="calculator">114 / 6</gadget>
<output>19</output>

<result>19</result>