Last updated: June 24, 2025
In December, the average temperature in Griswold, United States hovers around -1°C (31°F). However, temperatures can vary significantly, dipping as low as -23°C (-9°F) and soaring to a warm 22°C (71°F). Expect about 36 mm (1.4 in) of precipitation spread out over 4 days, with an average humidity level of 83%, contributing to a crisp, cool atmosphere.
In December in Griswold, the average temperature is -1°C (31°F), with maximums reaching up to 22°C (71°F) and minimums dropping as low as -23°C (-9°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both chilly and mild conditions.
In Griswold in December, the precipitation amount is 36 mm (1.4 in) over the course of 4 days.
In Griswold in December humidity is 83%. With an average temperature of -1°C (31°F), this humidity feels like a heavy, icy blanket enveloping you, making each step outside feel like a struggle against the cold, damp air that clings to your skin, often leaving you wishing for warmth and refuge indoors.
In Griswold 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 Griswold, you can visit Hourly UV Index in Griswold.
UV Risk Categories
Weather in Griswold varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Griswold, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (24°F) | 32 mm (1.3 inches) | 76% | moderate |
| February Weather | -4°C (25°F) | 34 mm (1.4 inches) | 80% | moderate |
| March Weather | 5°C (41°F) | 89 mm (3.5 inches) | 73% | high |
| April Weather | 10°C (50°F) | 60 mm (2.4 inches) | 74% | very high |
| May Weather | 17°C (63°F) | 158 mm (6.2 inches) | 78% | very high |
| June Weather | 24°C (75°F) | 116 mm (4.6 inches) | 82% | very high |
| July Weather | 25°C (78°F) | 67 mm (2.6 inches) | 83% | very high |
| August Weather | 23°C (74°F) | 104 mm (4.1 inches) | 80% | very high |
| September Weather | 20°C (69°F) | 109 mm (4.3 inches) | 75% | very high |
| October Weather | 11°C (53°F) | 134 mm (5.3 inches) | 75% | high |
| November Weather | 4°C (40°F) | 32 mm (1.3 inches) | 82% | moderate |
| December Weather | -1°C (31°F) | 36 mm (1.4 inches) | 83% | low |