Last updated: June 24, 2025
In December, the average temperature in South Pottstown, United States hovers around 3°C (38°F). Be prepared for chilly conditions, as temperatures can dip to a frigid -14°C (7°F) or rise to a maximum of 18°C (64°F). Rainfall is common, with an average precipitation of 99 mm (3.9 in) spread over 9 days. The air carries a notable humidity of 85%, making it feel even cooler.
In December in South Pottstown, the average temperature is 3°C (38°F). Maximums can reach 18°C (64°F) and minimums can be as low as -14°C (7°F). Be prepared for a wide temperature range during your travels, ensuring you pack for both warm and cold conditions.
In South Pottstown in December, the precipitation amount is 99 mm (3.9 in) during a span of 9 days.
In South Pottstown in December, humidity is 85%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable as you contend with the heavy, cold air surrounding you.
In South Pottstown 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 South Pottstown, you can visit Hourly UV Index in South Pottstown.
UV Risk Categories
Weather in South Pottstown varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in South Pottstown, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 67 mm (2.6 inches) | 87% | moderate |
| February Weather | 3°C (37°F) | 105 mm (4.1 inches) | 85% | moderate |
| March Weather | 6°C (42°F) | 103 mm (4.1 inches) | 85% | high |
| April Weather | 12°C (53°F) | 103 mm (4.0 inches) | 83% | very high |
| May Weather | 17°C (63°F) | 136 mm (5.3 inches) | 75% | very high |
| June Weather | 22°C (72°F) | 109 mm (4.3 inches) | 73% | very high |
| July Weather | 25°C (78°F) | 141 mm (5.5 inches) | 65% | very high |
| August Weather | 24°C (75°F) | 151 mm (5.9 inches) | 62% | very high |
| September Weather | 21°C (70°F) | 100 mm (3.9 inches) | 66% | very high |
| October Weather | 15°C (59°F) | 101 mm (4.0 inches) | 79% | high |
| November Weather | 7°C (45°F) | 87 mm (3.4 inches) | 87% | moderate |
| December Weather | 3°C (38°F) | 99 mm (3.9 inches) | 85% | low |