Last updated: June 24, 2025
In December, the average temperature in Webster City, United States hovers around -2°C (29°F). Expect minimums plummeting to -23°C (-9°F) and maximums reaching up to 21°C (71°F). The region experiences an average precipitation of 37 mm (1.5 in) over 5 days, accompanied by a high average humidity of 83%.
In December in Webster City, the average temperature is -2°C (29°F). Maximum temperatures can reach 21°C (71°F), while minimums can drop as low as -23°C (-9°F). Be prepared for a wide range of temperatures when traveling to Webster City during this time.
In Webster City in December, the precipitation amount is 37 mm (1.5 in) spread over a period of 5 days.
In Webster City 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 Webster City 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 Webster City, you can check the information here.
UV Risk Categories
Weather in Webster City varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Webster City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 33 mm (1.3 inches) | 82% | moderate |
| February Weather | -7°C (20°F) | 45 mm (1.8 inches) | 84% | moderate |
| March Weather | 3°C (37°F) | 72 mm (2.8 inches) | 80% | moderate |
| April Weather | 8°C (47°F) | 72 mm (2.8 inches) | 81% | very high |
| May Weather | 16°C (61°F) | 171 mm (6.7 inches) | 74% | very high |
| June Weather | 23°C (74°F) | 109 mm (4.3 inches) | 80% | extreme |
| July Weather | 24°C (76°F) | 83 mm (3.3 inches) | 80% | very high |
| August Weather | 22°C (72°F) | 92 mm (3.6 inches) | 77% | very high |
| September Weather | 19°C (67°F) | 120 mm (4.7 inches) | 75% | very high |
| October Weather | 10°C (51°F) | 120 mm (4.7 inches) | 80% | high |
| November Weather | 2°C (37°F) | 43 mm (1.7 inches) | 87% | moderate |
| December Weather | -2°C (29°F) | 37 mm (1.5 inches) | 83% | moderate |