25. Livable Temperatures
Seasons are important but they can still change and not have an impact on complete temperature changes like what we see on Earth. Temperatures need to be considered because none of those things matters if this isn’t factored in. For example, Venus happens to be within the habitable zone. Mars technically is too.
Yet Earth is the only planet among these that humans can live on. Venus is too hot while Mars is too cold. Both have loads of other issues that don’t make them truly habitable for human life, but their brutal temperatures are among the major reasons. The biggest temperature rates a human can exist in is a high of 248 degrees and a low of -108 degrees Fahrenheit, both only being for short times. If a new planet is not much lower or higher than this for heat and cold respectively, we cannot live there.