Last updated: June 24, 2025
In December, the average temperature in Ladue, United States hovers around 4°C (39°F), offering a cool atmosphere for residents and visitors alike. Expect temperature variations, with a minimum plunging to -17°C (2°F) and a maximum reaching a comfortable 22°C (72°F). This month also sees around 55 mm (2.2 in) of precipitation over 7 days, contributing to an average humidity of 86%. So, be prepared for a mix of chilly and mild days ahead!
In December in Ladue, the average temperature is 4°C (39°F). Maximum temperatures can reach up to 22°C (72°F), while minimum temperatures can drop as low as -17°C (2°F). Be prepared for a wide range of temperatures to ensure a comfortable and enjoyable travel experience.
In Ladue in December, the precipitation amount is 55 mm (2.2 in) over the course of 7 days.
In Ladue in December humidity is 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.
In Ladue in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Ladue, you can check the information here.
UV Risk Categories
Weather in Ladue varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ladue, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 74 mm (2.9 inches) | 82% | moderate |
| February Weather | 2°C (35°F) | 79 mm (3.1 inches) | 80% | moderate |
| March Weather | 8°C (47°F) | 130 mm (5.1 inches) | 80% | high |
| April Weather | 13°C (55°F) | 124 mm (4.9 inches) | 80% | very high |
| May Weather | 19°C (67°F) | 143 mm (5.6 inches) | 82% | very high |
| June Weather | 25°C (77°F) | 93 mm (3.7 inches) | 83% | extreme |
| July Weather | 26°C (80°F) | 95 mm (3.7 inches) | 81% | very high |
| August Weather | 25°C (76°F) | 135 mm (5.3 inches) | 80% | very high |
| September Weather | 22°C (72°F) | 56 mm (2.2 inches) | 76% | very high |
| October Weather | 15°C (59°F) | 105 mm (4.1 inches) | 76% | high |
| November Weather | 7°C (44°F) | 71 mm (2.8 inches) | 85% | moderate |
| December Weather | 4°C (39°F) | 55 mm (2.2 inches) | 86% | moderate |