Last updated: June 24, 2025
In December, the average temperature in Norvelt, United States hovers around 2°C (36°F), with extremes ranging from a chilly -17°C (2°F) to a mild 19°C (66°F). Expect a total precipitation of 113 mm (4.4 in) spread over 13 days, and be prepared for high humidity levels averaging 88%.
In December in Norvelt, the average temperature is 2°C (36°F), with maximums reaching 19°C (66°F) and minimums dipping as low as -17°C (2°F). Travelers should be prepared for a significant range in temperatures and dress accordingly.
In Norvelt in December, the precipitation amount is 113 mm (4.4 in) over the course of 13 days.
In Norvelt in December, humidity is 88%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket wrapping around you, making traveling uncomfortable and energy-draining as every step through the chill seems heavier in the thick air.
In Norvelt 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 Norvelt, you can visit Hourly UV Index in Norvelt.
UV Risk Categories
Weather in Norvelt varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Norvelt, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (31°F) | 93 mm (3.7 inches) | 89% | moderate |
| February Weather | 2°C (35°F) | 131 mm (5.1 inches) | 90% | moderate |
| March Weather | 5°C (41°F) | 115 mm (4.5 inches) | 89% | high |
| April Weather | 11°C (51°F) | 130 mm (5.1 inches) | 88% | very high |
| May Weather | 16°C (62°F) | 156 mm (6.1 inches) | 80% | very high |
| June Weather | 21°C (69°F) | 156 mm (6.1 inches) | 79% | very high |
| July Weather | 23°C (74°F) | 131 mm (5.2 inches) | 74% | very high |
| August Weather | 22°C (72°F) | 90 mm (3.5 inches) | 64% | very high |
| September Weather | 19°C (67°F) | 118 mm (4.6 inches) | 67% | very high |
| October Weather | 14°C (57°F) | 117 mm (4.6 inches) | 81% | high |
| November Weather | 5°C (42°F) | 93 mm (3.7 inches) | 89% | moderate |
| December Weather | 2°C (36°F) | 113 mm (4.4 inches) | 88% | low |