Cooling fan

Got my stryker end of October. Honestly in 4 months I can't say I ever heard my fan come on once . Are they quiet?? Will I hear it ?? . I live in Florida but it has been a bit chilly . Nov dec Jan and Feb are the coolest months. Now that it's the middle of March, I'm just wondering how hot it has to be for it to come on ? . I'm a hard straight highway rider so I'm doing 75 mph on some long stretches. Also, will the fan run after the engine is turned off like some of my other bikes ?? Thanks guys for input. 😎