Last updated: June 24, 2025
In December, the average temperature in Franklin Grove, United States hovers around 0°C (32°F), making it a brisk time of year. Temperatures can dip as low as -21°C (-6°F), but can also reach a comfortable 19°C (67°F) on warmer days. Expect 49 mm (1.9 in) of precipitation spread over 6 days, with an average humidity level of 84% to keep the air crisp and fresh.
In December in Franklin Grove the average temperature is 0°C (32°F). Maximum temperatures can reach 19°C (67°F) and minimums can drop as low as -21°C (-6°F). Travelers to Franklin Grove during this month should be prepared for a wide range of temperatures, ensuring they pack layers for both chilly and milder days.
In Franklin Grove in December, the precipitation amount is 49 mm (1.9 in) over the course of 6 days.
In Franklin Grove in December, humidity is 84%. With an average temperature of 0°C (32°F), this humidity feels like a cold, damp chill that seeps into your clothes, making traveling uncomfortable and necessitating extra layers to stay warm despite the moisture-laden air.
In Franklin Grove 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 Franklin Grove, you can visit Hourly UV Index in Franklin Grove.
UV Risk Categories
Weather in Franklin Grove varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Franklin Grove, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 61 mm (2.4 inches) | 82% | moderate |
| February Weather | -3°C (26°F) | 59 mm (2.3 inches) | 83% | moderate |
| March Weather | 4°C (39°F) | 85 mm (3.3 inches) | 84% | high |
| April Weather | 9°C (49°F) | 115 mm (4.5 inches) | 85% | very high |
| May Weather | 16°C (62°F) | 169 mm (6.7 inches) | 79% | very high |
| June Weather | 22°C (72°F) | 130 mm (5.1 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 100 mm (4.0 inches) | 80% | very high |
| August Weather | 23°C (73°F) | 70 mm (2.8 inches) | 81% | very high |
| September Weather | 20°C (68°F) | 114 mm (4.5 inches) | 80% | very high |
| October Weather | 12°C (54°F) | 120 mm (4.7 inches) | 82% | high |
| November Weather | 3°C (38°F) | 54 mm (2.1 inches) | 88% | moderate |
| December Weather | 0°C (32°F) | 49 mm (1.9 inches) | 84% | low |