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December Weather in Brookings, United States

Last updated: June 24, 2025

In December, the average temperature in Brookings, United States hovers around -4°C (25°F). Expect a frosty chill, with minimum temperatures plunging to -25°C (-13°F), while daytime highs can reach up to 14°C (57°F). During this month, precipitation averages around 34 mm (1.3 in), typically spread over 4 days, and a notable average humidity of 84% creates a crisp, damp atmosphere.

December Temperature in Brookings

In December in Brookings, the average temperature is -4°C (25°F). Maximums can reach 14°C (57°F) and minimums can be as low as -25°C (-13°F). Travelers should prepare for a wide range of temperatures and dress in layers to stay comfortable during their visit.

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

The chart illustrates December temperature patterns in Brookings, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brookings, December typically has an average temperature of -4°C (25°F), with highs reaching up to 14°C (57°F) and lows dropping to around -25°C (-13°F).
JanFebMarAprMayJunJulAugSepOctNovDec161632425771737063463324
Data source: Temperature data for Brookings 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 Brookings

In Brookings in December, the precipitation amount is 34 mm (1.3 in) over a span of 4 days.

December Precipitation Trends in Brookings

The chart displays monthly precipitation patterns in Brookings, 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 Brookings, December typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec212156701048496115101712734
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Brookings

In Brookings in December, humidity is 84%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable.

December Average Humidity in Brookings

This chart illustrates the average monthly humidity levels in Brookings, 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 Brookings is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Brookings

In Brookings 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 Brookings, you can visit Hourly UV Index in Brookings.

Maximum UV Index Levels in Brookings for December

The chart shows the monthly maximum UV Index (UVI) for Brookings 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 Brookings typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589101098532
Data source: Brookings 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 Brookings Compares to Other Months

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

This table compares monthly weather conditions in Brookings, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (17°F)21 mm (0.8 inches)85%moderate
February Weather-9°C (17°F)21 mm (0.8 inches)89%moderate
March Weather0°C (33°F)56 mm (2.2 inches)81%moderate
April Weather6°C (42°F)70 mm (2.8 inches)82%very high
May Weather14°C (57°F)104 mm (4.1 inches)76%very high
June Weather22°C (71°F)84 mm (3.3 inches)81%very high
July Weather23°C (74°F)96 mm (3.8 inches)82%very high
August Weather21°C (70°F)115 mm (4.5 inches)83%very high
September Weather17°C (64°F)101 mm (4.0 inches)82%very high
October Weather8°C (47°F)71 mm (2.8 inches)82%moderate
November Weather0°C (33°F)27 mm (1.0 inches)87%moderate
December Weather-4°C (25°F)34 mm (1.3 inches)84%low

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