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December Weather in Overbrook, United States

Last updated: June 24, 2025

In Overbrook, United States, the average temperature in December hovers around 3°C (38°F), with potential lows plummeting to -17°C (2°F) and highs reaching up to 22°C (72°F). Expect a precipitation amount of 33 mm (1.3 in) spread over approximately 3 days, and prepare for a rather humid atmosphere with average humidity levels at 84%.

December Temperature in Overbrook

In December in Overbrook, the average temperature is 3°C (38°F). Maximum temperatures can reach 22°C (72°F), while minimums can drop as low as -17°C (2°F). This range makes it essential for travelers to pack a variety of clothing to stay comfortable in changing weather conditions.

December Weather in Overbrook: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Overbrook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Overbrook, December typically has an average temperature of 3°C (38°F), with highs reaching up to 22°C (72°F) and lows dropping to around -17°C (2°F).
JanFebMarAprMayJunJulAugSepOctNovDec323347556677807772574538
Data source: Temperature data for Overbrook generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Overbrook

In Overbrook in December, the precipitation amount is 33 mm (1.3 in) over the course of 3 days.

December Precipitation Trends in Overbrook

The chart displays monthly precipitation patterns in Overbrook, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Overbrook, December typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec493110095204104100125831194033
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Overbrook

In Overbrook in December, humidity is 84%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as the cold air clings to you and the moisture creates an oppressive heaviness in the atmosphere.

December Average Humidity in Overbrook

This chart illustrates the average monthly humidity levels in Overbrook, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Overbrook is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Overbrook

In Overbrook in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Overbrook, you can check the information here.

Maximum UV Index Levels in Overbrook for December

The chart shows the monthly maximum UV Index (UVI) for Overbrook in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Overbrook typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109643
Data source: Overbrook December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Overbrook Compares to Other Months

Weather in Overbrook varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Overbrook, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Overbrook, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)49 mm (1.9 inches)76%moderate
February Weather1°C (34°F)31 mm (1.2 inches)77%high
March Weather8°C (47°F)100 mm (3.9 inches)70%high
April Weather13°C (55°F)95 mm (3.7 inches)73%very high
May Weather19°C (66°F)204 mm (8.0 inches)82%very high
June Weather25°C (78°F)104 mm (4.1 inches)82%extreme
July Weather27°C (80°F)100 mm (3.9 inches)81%extreme
August Weather25°C (77°F)125 mm (4.9 inches)78%very high
September Weather22°C (72°F)83 mm (3.3 inches)71%very high
October Weather14°C (57°F)119 mm (4.7 inches)71%high
November Weather7°C (45°F)40 mm (1.6 inches)81%moderate
December Weather3°C (38°F)33 mm (1.3 inches)84%moderate

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