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December Weather in College Park, United States

Last updated: June 24, 2025

In College Park, United States, the average temperature in December hovers around 9°C (48°F). Expect a range where minimums can dip to -6°C (22°F) and maximums can reach up to 24°C (75°F). During this month, you can anticipate approximately 138 mm (5.4 in) of precipitation spread over 11 days, with an average humidity level of 89%.

December Temperature in College Park

In December in College Park, the average temperature is 9°C (48°F). Maximums can reach 24°C (75°F) and minimums can be as low as -6°C (22°F). Be prepared for a wide range of temperatures when traveling, and pack accordingly!

December Weather in College Park: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in College Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In College Park, December typically has an average temperature of 9°C (48°F), with highs reaching up to 24°C (75°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec455156627176797875665248
Data source: Temperature data for College Park 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 College Park

In College Park in December, the precipitation amount is 138 mm (5.4 in) distributed over 11 days.

December Precipitation Trends in College Park

The chart displays monthly precipitation patterns in College Park, 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 College Park, December typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec1061451311249612111214311212482138
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in College Park

In College Park in December humidity is 89%. With an average temperature of 9°C (48°F), this humidity feels like a chill that lingers in the air, wrapping around you like a damp blanket, making outdoor activities challenging and encouraging a cozy retreat indoors.

December Average Humidity in College Park

This chart illustrates the average monthly humidity levels in College Park, 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 College Park is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%81%81%81%83%81%82%78%86%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in College Park

In College Park in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in College Park for better planning.

Maximum UV Index Levels in College Park for December

The chart shows the monthly maximum UV Index (UVI) for College Park 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 College Park typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47811111111109864
Data source: College Park 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 College Park Compares to Other Months

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

This table compares monthly weather conditions in College Park, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (46°F)106 mm (4.2 inches)86%moderate
February Weather11°C (51°F)145 mm (5.7 inches)84%high
March Weather13°C (56°F)130 mm (5.1 inches)83%very high
April Weather17°C (62°F)124 mm (4.9 inches)81%extreme
May Weather22°C (71°F)96 mm (3.8 inches)81%extreme
June Weather25°C (76°F)121 mm (4.8 inches)81%extreme
July Weather26°C (80°F)112 mm (4.4 inches)83%extreme
August Weather26°C (79°F)142 mm (5.6 inches)81%very high
September Weather24°C (75°F)112 mm (4.4 inches)82%very high
October Weather19°C (66°F)123 mm (4.9 inches)78%very high
November Weather11°C (52°F)82 mm (3.2 inches)86%high
December Weather9°C (48°F)138 mm (5.4 inches)89%moderate

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