Last updated: June 24, 2025
In December, the average temperature in La Grange, United States is a mild 13°C (56°F). However, temperatures can swing widely, with a minimum of -3°C (26°F) and reaching up to 30°C (86°F). Expect about 86 mm (3.4 in) of precipitation spread over 8 days, and a humid atmosphere with an average humidity of 84%.
In December in La Grange, the average temperature is 13°C (56°F). The maximum can reach 30°C (86°F), while the minimum can drop as low as -3°C (26°F). Be prepared for a wide range of temperatures when planning your travels during this month.
In La Grange in December, the precipitation amount reaches 86 mm (3.4 in) over the course of 8 days.
In La Grange in December, humidity is 84%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel cooler and more uncomfortable for traveling, as the air clings to your skin and weighs you down with a sense of heaviness.
In La Grange in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in La Grange.
UV Risk Categories
Weather in La Grange varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in La Grange, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 12°C (53°F) | 62 mm (2.4 inches) | 78% | moderate |
| February Weather | 13°C (55°F) | 71 mm (2.8 inches) | 81% | very high |
| March Weather | 18°C (65°F) | 73 mm (2.9 inches) | 76% | very high |
| April Weather | 21°C (70°F) | 105 mm (4.1 inches) | 79% | very high |
| May Weather | 25°C (78°F) | 145 mm (5.7 inches) | 79% | extreme |
| June Weather | 28°C (83°F) | 112 mm (4.4 inches) | 74% | extreme |
| July Weather | 29°C (85°F) | 94 mm (3.7 inches) | 71% | extreme |
| August Weather | 30°C (86°F) | 138 mm (5.4 inches) | 68% | extreme |
| September Weather | 27°C (81°F) | 120 mm (4.7 inches) | 73% | very high |
| October Weather | 22°C (72°F) | 83 mm (3.3 inches) | 75% | very high |
| November Weather | 16°C (61°F) | 67 mm (2.6 inches) | 78% | high |
| December Weather | 13°C (56°F) | 86 mm (3.4 inches) | 84% | moderate |