There is no definitive answer to this question as it depends on a number of factors, including the distance from the sun, the atmospheric composition, and the rotation rate. However, some planets are more likely to have large temperature differences than others. For example, Mercury, which is closest to the sun, has daytime temperatures that can exceed 800 degrees Fahrenheit (430 degrees Celsius), while nighttime temperatures can dip below -280 degrees Fahrenheit (-173 degrees Celsius). This results in a temperature difference of over 1,000 degrees Fahrenheit (560 degrees Celsius). Similarly, Venus also has very extreme temperatures due to its proximity to the sun and its dense atmosphere. Daytime temperatures on Venus can reach 870 degrees Fahrenheit (462 degrees Celsius), while nighttime temperatures can drop to -460 degrees Fahrenheit (-273 degree Celsius), resulting in a temperature difference of over 1,300 degrees Fahrenheit (700+ degree Celsius). Finally, Mars also has large temperature swings due mainly to its thin atmosphere. Martian daytime temperatures can range from 20-70Â°F (-7-21Â°C), while at night they can plunge as low as -140Â°F (-100Â°C). This gives Mars a temperature difference of around 90Â°F (50Â°C).