Dependence of a pendulum's period on temperature

Does the time period of pendulum just increases with temperature or proportionately with temperature. If former is correct why latter is incorrect

• As the length of string increases Mar 13 '19 at 1:30
• I've edited your title. Please use titles that describe the question.
– user4552
Mar 13 '19 at 4:31

The period $$T$$ for a pendulum is given by the following equation.
$$T\approx 2\pi \sqrt{\frac Lg}$$
As you can see in this equation, the period depends only on the length $$L$$ of the pendulum and the acceleration $$g$$ of gravity. The pendulum's period increases proportionally to the square root of its length and the square root of gravitational acceleration. The effects of temperature on a pendulum are insignificant. Therefore the period of a pendulum does not increase proportionally with temperature.