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December Weather in Brookville, United States

Last updated: June 24, 2025

In December, the average temperature in Brookville, United States hovers around 0°C (33°F). Expect chilly conditions with a minimum dropping to -17°C (1°F) and a maximum reaching up to 16°C (62°F). Throughout the month, precipitation totals approximately 107 mm (4.2 in) over 14 days, contributing to a high average humidity of 88%.

December Temperature in Brookville

In December in Brookville, the average temperature is 0°C (33°F). Maximums can reach 16°C (62°F) while minimums can be as low as -17°C (1°F). Travelers should be prepared for a wide range of temperatures, making layered clothing essential for comfort.

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

The chart illustrates December temperature patterns in Brookville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brookville, December typically has an average temperature of 0°C (33°F), with highs reaching up to 16°C (62°F) and lows dropping to around -17°C (1°F).
JanFebMarAprMayJunJulAugSepOctNovDec273037475967727064543933
Data source: Temperature data for Brookville 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 Brookville

In Brookville in December, the precipitation amount is 107 mm (4.2 in) spread over a period of 14 days.

December Precipitation Trends in Brookville

The chart displays monthly precipitation patterns in Brookville, 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 Brookville, December typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec100120105136153138127106125130102107
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Brookville

In Brookville in December, humidity is 88%. With an average temperature of 0°C (33°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring extra layers to stay warm and dry.

December Average Humidity in Brookville

This chart illustrates the average monthly humidity levels in Brookville, 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 Brookville is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Brookville

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

Maximum UV Index Levels in Brookville for December

The chart shows the monthly maximum UV Index (UVI) for Brookville 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 Brookville typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Brookville 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 Brookville Compares to Other Months

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

This table compares monthly weather conditions in Brookville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)100 mm (3.9 inches)89%moderate
February Weather-1°C (31°F)120 mm (4.7 inches)90%moderate
March Weather3°C (38°F)105 mm (4.1 inches)89%high
April Weather9°C (48°F)136 mm (5.4 inches)88%very high
May Weather15°C (59°F)153 mm (6.0 inches)80%very high
June Weather19°C (67°F)138 mm (5.4 inches)79%very high
July Weather22°C (72°F)127 mm (5.0 inches)74%very high
August Weather21°C (70°F)106 mm (4.2 inches)64%very high
September Weather18°C (64°F)124 mm (4.9 inches)67%very high
October Weather12°C (54°F)130 mm (5.1 inches)81%high
November Weather4°C (39°F)102 mm (4.0 inches)89%moderate
December Weather0°C (33°F)107 mm (4.2 inches)88%low

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