Last updated: June 24, 2025
In December, the average temperature in Nittany, United States hovers around 1°C (34°F). Expect a range with minimums plunging to -15°C (5°F) and maximums reaching up to 17°C (64°F). Additionally, precipitation is notable, with about 93 mm (3.7 in) falling over 11 days. As you prepare, keep in mind the high humidity levels, averaging 88%.
In December in Nittany, the average temperature is 1°C (34°F). The maximum can reach 17°C (64°F), while the minimum can drop to as low as -15°C (5°F). Be prepared for a wide range of temperatures when traveling to Nittany during this time.
In Nittany in December, the precipitation amount is 93 mm (3.7 in) over the course of 11 days, indicating that rain is expected to be fairly frequent during that time.
In Nittany in December humidity is 88%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making travel feel damp and brisk, where every breath carries a crisp bite, and the air clings to your skin, urging you to seek warmth and comfort.
In Nittany 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 Nittany, you can visit Hourly UV Index in Nittany.
UV Risk Categories
Weather in Nittany varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Nittany, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 71 mm (2.8 inches) | 89% | moderate |
| February Weather | 0°C (31°F) | 104 mm (4.1 inches) | 90% | moderate |
| March Weather | 3°C (38°F) | 89 mm (3.5 inches) | 89% | high |
| April Weather | 9°C (49°F) | 112 mm (4.4 inches) | 88% | very high |
| May Weather | 15°C (60°F) | 136 mm (5.4 inches) | 80% | very high |
| June Weather | 20°C (68°F) | 107 mm (4.2 inches) | 79% | very high |
| July Weather | 23°C (74°F) | 137 mm (5.4 inches) | 74% | very high |
| August Weather | 22°C (72°F) | 107 mm (4.2 inches) | 64% | very high |
| September Weather | 18°C (65°F) | 125 mm (4.9 inches) | 67% | very high |
| October Weather | 13°C (55°F) | 120 mm (4.7 inches) | 81% | high |
| November Weather | 4°C (40°F) | 87 mm (3.4 inches) | 89% | moderate |
| December Weather | 1°C (34°F) | 93 mm (3.7 inches) | 88% | low |