Last updated: June 24, 2025
In December, the average temperature in Lykens, United States hovers around 2°C (37°F). Temperatures can swing from a chilly -13°C (9°F) at their lowest to a mild 17°C (64°F) at their peak. Expect some rain, with a total precipitation of 89 mm (3.5 in) over approximately 10 days, and keep in mind that the average humidity is a high 85%. Prepare for a mix of brisk conditions and occasional dampness!
In December in Lykens, the average temperature is 2°C (37°F). Maximums can reach 17°C (64°F) and minimums can be as low as -13°C (9°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm layers and lighter clothing for the milder days.
In Lykens in December, the precipitation amount is 89 mm (3.5 in) over a period of 10 days.
In Lykens in December, humidity is 85%. With an average temperature of 2°C (37°F), this humidity feels like a damp chill that seeps into your bones, making outdoor excursions feel much colder than the thermometer suggests.
In Lykens 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 Lykens, you can visit Hourly UV Index in Lykens.
UV Risk Categories
Weather in Lykens varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Lykens, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 71 mm (2.8 inches) | 87% | moderate |
| February Weather | 2°C (35°F) | 103 mm (4.0 inches) | 85% | moderate |
| March Weather | 5°C (42°F) | 94 mm (3.7 inches) | 85% | high |
| April Weather | 11°C (52°F) | 106 mm (4.2 inches) | 83% | very high |
| May Weather | 17°C (63°F) | 123 mm (4.8 inches) | 75% | very high |
| June Weather | 22°C (72°F) | 93 mm (3.7 inches) | 73% | very high |
| July Weather | 25°C (77°F) | 135 mm (5.3 inches) | 65% | very high |
| August Weather | 24°C (75°F) | 121 mm (4.8 inches) | 62% | very high |
| September Weather | 20°C (69°F) | 117 mm (4.6 inches) | 66% | very high |
| October Weather | 14°C (58°F) | 110 mm (4.3 inches) | 79% | high |
| November Weather | 6°C (44°F) | 93 mm (3.6 inches) | 87% | moderate |
| December Weather | 2°C (37°F) | 89 mm (3.5 inches) | 85% | low |