Last updated: June 24, 2025
In December, the average temperature in Cedar Falls, United States hovers around -2°C (29°F). While temperatures can dip as low as -22°C (-7°F), they may rise to a comfortable 22°C (72°F). Expect 36 mm (1.4 in) of precipitation spread over 5 days, and prepare for the average humidity to be a high 83%.
In December in Cedar Falls, the average temperature is -2°C (29°F). The maximum can reach 22°C (72°F), and the minimum can be as low as -22°C (-7°F). Travelers should be prepared for a wide range of temperatures, from chilly to pleasantly warm, making it essential to pack accordingly.
In Cedar Falls in December, the precipitation amount is 36 mm (1.4 in) over the course of 5 days.
In Cedar Falls in December, humidity is 83%. With an average temperature of -2°C (29°F), this humidity feels like a biting chill that seeps into your bones, making travel outside feel particularly uncomfortable and brisk, as the damp air enhances the cold sensation, leaving you longing for warmth and shelter.
In Cedar Falls 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 Cedar Falls, you can check the information here.
UV Risk Categories
Weather in Cedar Falls varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Cedar Falls, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 41 mm (1.6 inches) | 82% | moderate |
| February Weather | -6°C (21°F) | 50 mm (2.0 inches) | 84% | moderate |
| March Weather | 3°C (37°F) | 73 mm (2.9 inches) | 80% | high |
| April Weather | 8°C (47°F) | 78 mm (3.1 inches) | 81% | very high |
| May Weather | 16°C (61°F) | 160 mm (6.3 inches) | 74% | very high |
| June Weather | 23°C (73°F) | 134 mm (5.3 inches) | 80% | extreme |
| July Weather | 24°C (75°F) | 104 mm (4.1 inches) | 80% | very high |
| August Weather | 22°C (72°F) | 96 mm (3.8 inches) | 77% | very high |
| September Weather | 19°C (67°F) | 117 mm (4.6 inches) | 75% | very high |
| October Weather | 11°C (51°F) | 134 mm (5.3 inches) | 80% | moderate |
| November Weather | 2°C (37°F) | 49 mm (1.9 inches) | 87% | moderate |
| December Weather | -2°C (29°F) | 36 mm (1.4 inches) | 83% | moderate |