Last updated: June 24, 2025
In December, the average temperature in Cullom, United States hovers around 1°C (35°F). Expect chilly conditions with a minimum temperature dropping as low as -21°C (-5°F), while the mercury can rise to a maximum of 19°C (67°F). Rainfall is moderate, with an average precipitation amount of 57 mm (2.3 in) spread over 7 days. With an average humidity level of 84%, be prepared for a damp and cool climate.
In December in Cullom, the average temperature is 1°C (35°F). The maximum can reach 19°C (67°F), while the minimum can drop as low as -21°C (-5°F). Be prepared for a wide range of temperatures when traveling during this month!
In Cullom in December, the precipitation amount is 57 mm (2.3 in) over a span of 7 days.
In Cullom in December humidity is 84%. With an average temperature of 1°C (35°F), this humidity feels like a cold, damp chill that seeps into your bones, making it feel much colder than the thermometer suggests, which can be quite uncomfortable for traveling.
In Cullom 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 Cullom, you can visit Hourly UV Index in Cullom.
UV Risk Categories
Weather in Cullom varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Cullom, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 66 mm (2.6 inches) | 82% | moderate |
| February Weather | -2°C (29°F) | 71 mm (2.8 inches) | 83% | moderate |
| March Weather | 5°C (41°F) | 97 mm (3.8 inches) | 84% | high |
| April Weather | 10°C (51°F) | 120 mm (4.7 inches) | 85% | very high |
| May Weather | 17°C (64°F) | 166 mm (6.5 inches) | 79% | very high |
| June Weather | 23°C (74°F) | 120 mm (4.7 inches) | 82% | very high |
| July Weather | 25°C (77°F) | 93 mm (3.6 inches) | 80% | very high |
| August Weather | 23°C (74°F) | 91 mm (3.6 inches) | 81% | very high |
| September Weather | 21°C (69°F) | 80 mm (3.2 inches) | 80% | very high |
| October Weather | 13°C (56°F) | 133 mm (5.2 inches) | 82% | high |
| November Weather | 5°C (41°F) | 59 mm (2.3 inches) | 88% | moderate |
| December Weather | 1°C (35°F) | 57 mm (2.3 inches) | 84% | low |