Best time to rent a car around Millennium Park
The best value period to rent a car around Millennium Park is October, when prices are typically at their lowest and demand remains manageable. September also offers slightly low prices, although demand is high during this month. Additionally, May can be a good time with slightly lower prices, but demand is high then as well. In contrast, January tends to be the most expensive month, with slightly high prices and low demand, making it a quieter time for car hires.
 Calendar Month |  Temperature |  Precipitation |  Cloudiness |  Demand |  Pricing |
| January | 25.7°F (-3.5°C) | Light Rain | Mostly Cloudy | Low | Slightly High |
| February | 27.0°F (-2.8°C) | Light Rain | Mostly Cloudy | Low | Average |
| March | 37.0°F (2.8°C) | Light Rain | Mostly Cloudy | Average | Average |
| April | 46.0°F (7.8°C) | Light Rain | Mostly Sunny | Average | Average |
| May | 57.0°F (13.9°C) | Light Rain | Mostly Sunny | High | Slightly Low |
| June | 67.3°F (19.6°C) | Light Rain | Mostly Sunny | Average | Average |
| July | 73.4°F (23.0°C) | Light Rain | Mostly Sunny | High | Slightly High |
| August | 73.0°F (22.8°C) | Light Rain | Mostly Sunny | Average | Slightly High |
| September | 67.1°F (19.5°C) | Light Rain | Mostly Sunny | High | Slightly Low |
| October | 54.9°F (12.7°C) | Light Rain | Mostly Sunny | Average | Slightly Low |
| November | 42.3°F (5.7°C) | Light Rain | Mostly Sunny | Average | Average |
| December | 33.1°F (0.6°C) | Light Rain | Mostly Cloudy | Low | Average |