nomadseason

December Weather in Clay, United States

Last updated: June 24, 2025

In December, the average temperature in Clay, United States hovers around 6°C (43°F), with extremes ranging from a brisk -14°C (8°F) to a pleasantly warm 23°C (74°F). Expect about 100 mm (3.9 in) of precipitation spread over 10 days, accompanied by a high average humidity of 88%, creating a unique blend of chilly and damp conditions. Stay prepared!

December Temperature in Clay

In December in Clay, the average temperature is 6°C (43°F). The maximum can reach 23°C (74°F) and the minimum can be as low as -14°C (8°F). Travelers should prepare for a wide range of temperatures, making layering essential for comfort.

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

The chart illustrates December temperature patterns in Clay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clay, December typically has an average temperature of 6°C (43°F), with highs reaching up to 23°C (74°F) and lows dropping to around -14°C (8°F).
JanFebMarAprMayJunJulAugSepOctNovDec374050576977807874624642
Data source: Temperature data for Clay generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Clay

In Clay in December, the precipitation amount is 100 mm (3.9 in) over a span of 10 days.

December Precipitation Trends in Clay

The chart displays monthly precipitation patterns in Clay, 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 Clay, December typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec9513212514012311793889311886100
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Clay

In Clay in December, humidity is 88%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and prompting you to seek warm shelter frequently.

December Average Humidity in Clay

This chart illustrates the average monthly humidity levels in Clay, 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 Clay is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%84%80%82%83%80%76%75%75%85%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Clay

In Clay 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 Clay, you can check the information here.

Maximum UV Index Levels in Clay for December

The chart shows the monthly maximum UV Index (UVI) for Clay 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 Clay typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101110109753
Data source: Clay 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 Clay Compares to Other Months

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

This table compares monthly weather conditions in Clay, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)95 mm (3.7 inches)86%moderate
February Weather5°C (41°F)132 mm (5.2 inches)84%high
March Weather10°C (50°F)125 mm (4.9 inches)84%high
April Weather14°C (58°F)140 mm (5.5 inches)80%very high
May Weather21°C (70°F)123 mm (4.8 inches)82%very high
June Weather25°C (77°F)117 mm (4.6 inches)83%extreme
July Weather27°C (81°F)93 mm (3.7 inches)79%very high
August Weather25°C (78°F)88 mm (3.5 inches)76%very high
September Weather23°C (74°F)93 mm (3.7 inches)75%very high
October Weather17°C (62°F)118 mm (4.7 inches)74%high
November Weather8°C (47°F)86 mm (3.4 inches)85%moderate
December Weather6°C (43°F)100 mm (3.9 inches)88%moderate

Compare Clay's Climate with Cities Worldwide