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December Weather in Grey Forest, United States

Last updated: June 24, 2025

In December, the average temperature in Grey Forest, United States is a mild 13°C (55°F). However, be prepared for a range of conditions, as temperatures can dip to a chilly -3°C (26°F) or soar to a warm 29°C (84°F). Visitors should also note an expected precipitation amount of 56 mm (2.2 in) spread over 6 days, contributing to an average humidity of a sticky 86%.

December Temperature in Grey Forest

In December in Grey Forest, the average temperature is 13°C (55°F). Maximum temperatures can reach 29°C (84°F), while minimums can drop as low as -3°C (26°F). Be prepared for a wide range of weather conditions while traveling during this time.

December Weather in Grey Forest: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Grey Forest, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grey Forest, December typically has an average temperature of 13°C (55°F), with highs reaching up to 29°C (84°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec525464697782848580716055
Data source: Temperature data for Grey Forest 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 Grey Forest

In Grey Forest in December, the precipitation amount is 56 mm (2.2 in) spread over 6 days.

December Precipitation Trends in Grey Forest

The chart displays monthly precipitation patterns in Grey Forest, 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 Grey Forest, December typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec42546370123726148115814356
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Grey Forest

In Grey Forest in December humidity is 86%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket clinging to your skin, making travel quite uncomfortable and urging you to seek cooler, dryer spots.

December Average Humidity in Grey Forest

This chart illustrates the average monthly humidity levels in Grey Forest, 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 Grey Forest is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%79%74%76%81%76%66%58%65%74%81%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Grey Forest

In Grey Forest in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Grey Forest.

Maximum UV Index Levels in Grey Forest for December

The chart shows the monthly maximum UV Index (UVI) for Grey Forest 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 Grey Forest typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121211975
Data source: Grey Forest 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 Grey Forest Compares to Other Months

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

This table compares monthly weather conditions in Grey Forest, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)42 mm (1.7 inches)79%moderate
February Weather12°C (55°F)54 mm (2.1 inches)79%very high
March Weather18°C (64°F)63 mm (2.5 inches)74%very high
April Weather21°C (69°F)70 mm (2.8 inches)76%extreme
May Weather25°C (77°F)123 mm (4.8 inches)81%extreme
June Weather28°C (82°F)72 mm (2.8 inches)76%extreme
July Weather29°C (84°F)61 mm (2.4 inches)66%extreme
August Weather29°C (85°F)48 mm (1.9 inches)58%extreme
September Weather26°C (80°F)115 mm (4.5 inches)65%extreme
October Weather22°C (71°F)81 mm (3.2 inches)74%very high
November Weather16°C (61°F)43 mm (1.7 inches)81%high
December Weather13°C (55°F)56 mm (2.2 inches)86%moderate

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