Last updated: June 24, 2025
In December, the average temperature in Council Bluffs, United States hovers around -1°C (31°F). However, be prepared for a temperature range that can dip to a chilling -23°C (-10°F) or rise to a mild 21°C (71°F). During this time, expect about 36 mm (1.4 in) of precipitation spread over 3 days, accompanied by an average humidity level of 83%. Make sure to dress appropriately for the variable weather!
In December in Council Bluffs, the average temperature is -1°C (31°F), with maximums reaching up to 21°C (71°F) and minimums dropping as low as -23°C (-10°F). Travelers should be prepared for a wide range of temperatures during this month, making it essential to pack accordingly for both warmth and cool conditions.
In Council Bluffs in December, the precipitation amount is 36 mm (1.4 in) over a period of 3 days.
In Council Bluffs in December humidity is 83%. With an average temperature of -1°C (31°F), this humidity feels like a heavy, icy blanket enveloping you, making each step outside feel like a struggle against the cold, damp air that clings to your skin, often leaving you wishing for warmth and refuge indoors.
In Council Bluffs in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Council Bluffs, you can visit Hourly UV Index in Council Bluffs.
UV Risk Categories
Weather in Council Bluffs varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Council Bluffs, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 33 mm (1.3 inches) | 76% | moderate |
| February Weather | -4°C (26°F) | 33 mm (1.3 inches) | 80% | moderate |
| March Weather | 5°C (41°F) | 95 mm (3.7 inches) | 73% | high |
| April Weather | 10°C (50°F) | 59 mm (2.3 inches) | 74% | very high |
| May Weather | 17°C (63°F) | 156 mm (6.1 inches) | 78% | very high |
| June Weather | 24°C (76°F) | 133 mm (5.2 inches) | 82% | very high |
| July Weather | 25°C (78°F) | 75 mm (3.0 inches) | 83% | very high |
| August Weather | 23°C (75°F) | 105 mm (4.1 inches) | 80% | very high |
| September Weather | 21°C (69°F) | 86 mm (3.4 inches) | 75% | very high |
| October Weather | 11°C (53°F) | 135 mm (5.3 inches) | 75% | high |
| November Weather | 4°C (40°F) | 32 mm (1.3 inches) | 82% | moderate |
| December Weather | -1°C (31°F) | 36 mm (1.4 inches) | 83% | low |