Last updated: June 24, 2025
In December, the average temperature in Delton, United States hovers around 0°C (33°F), with extremes ranging from a chilly -25°C (-12°F) to a mild 17°C (62°F). Expect about 67 mm (2.6 in) of precipitation over 11 days, contributing to a high average humidity of 86%. Whether braving the cold or enjoying a sunny day, the weather promises a unique experience.
In December in Delton, the average temperature is 0°C (33°F). Maximum temperatures can reach 17°C (62°F), while the minimum can drop as low as -25°C (-12°F). Be prepared for a wide range of temperatures during your travels, and pack accordingly!
In Delton in December, the total precipitation amount is 67 mm (2.6 in) over the course of 11 days.
In Delton in December humidity is 86%. With an average temperature of 0°C (33°F), this humidity feels like a damp chill that permeates your clothes, making traveling uncomfortable and necessitating warm, layered clothing to stay dry and cozy.
In Delton 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 Delton, you can visit Hourly UV Index in Delton.
UV Risk Categories
Weather in Delton varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Delton, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (26°F) | 72 mm (2.8 inches) | 87% | moderate |
| February Weather | -3°C (27°F) | 75 mm (3.0 inches) | 87% | moderate |
| March Weather | 3°C (37°F) | 76 mm (3.0 inches) | 86% | high |
| April Weather | 8°C (47°F) | 90 mm (3.6 inches) | 87% | very high |
| May Weather | 15°C (60°F) | 152 mm (6.0 inches) | 82% | very high |
| June Weather | 21°C (70°F) | 118 mm (4.6 inches) | 81% | very high |
| July Weather | 24°C (75°F) | 96 mm (3.8 inches) | 78% | very high |
| August Weather | 22°C (72°F) | 78 mm (3.1 inches) | 79% | very high |
| September Weather | 19°C (66°F) | 103 mm (4.1 inches) | 79% | high |
| October Weather | 12°C (53°F) | 136 mm (5.4 inches) | 82% | moderate |
| November Weather | 4°C (39°F) | 68 mm (2.7 inches) | 87% | moderate |
| December Weather | 0°C (33°F) | 67 mm (2.6 inches) | 86% | low |