December Weather in Clarion, United States

Last updated: June 24, 2025

In December, the average temperature in Clarion, United States is a brisk -2°C (28°F). Temperatures can swing dramatically, dipping as low as -23°C (-9°F) or climbing up to a pleasant 21°C (70°F). Expect 37 mm (1.5 in) of precipitation spread over 5 days, and a high average humidity of 83% fills the air.

December Temperature in Clarion

In December in Clarion, the average temperature is -2°C (28°F), with maximums reaching 21°C (70°F) and minimums dropping as low as -23°C (-9°F). Overall, travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates December temperature patterns in Clarion, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clarion, December typically has an average temperature of -2°C (28°F), with highs reaching up to 21°C (70°F) and lows dropping to around -23°C (-9°F).

Data source: Temperature data for Clarion generated using information from the Copernicus Climate Change Service.

December Precipitation in Clarion

In Clarion in December, the precipitation amount is 37 mm (1.5 in) spread over a period of 5 days.

December Precipitation Trends in Clarion

The chart displays monthly precipitation patterns in Clarion, 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 Clarion, December typically receives around 37 mm (1.5 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Clarion

In Clarion in December, humidity is 83%. With an average temperature of -2°C (28°F), this humidity feels like a biting chill that penetrates your clothes, making outdoor activities uncomfortable and travel challenging.

December Average Humidity in Clarion

This chart illustrates the average monthly humidity levels in Clarion, 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 Clarion is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Clarion

In Clarion 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 Clarion, you can check the information here.

Maximum UV Index Levels in Clarion for December

The chart shows the monthly maximum UV Index (UVI) for Clarion 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 Clarion typically reaches 3, which falls under the moderate exposure category.

Data source: Clarion 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 Clarion Compares to Other Months

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

This table compares monthly weather conditions in Clarion, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	33 mm (1.3 inches)	82%	moderate
February Weather	-7°C (19°F)	46 mm (1.8 inches)	84%	moderate
March Weather	2°C (36°F)	73 mm (2.9 inches)	80%	moderate
April Weather	8°C (47°F)	78 mm (3.1 inches)	81%	very high
May Weather	16°C (61°F)	171 mm (6.7 inches)	74%	very high
June Weather	23°C (73°F)	111 mm (4.4 inches)	80%	extreme
July Weather	24°C (75°F)	87 mm (3.4 inches)	80%	very high
August Weather	22°C (72°F)	105 mm (4.1 inches)	77%	very high
September Weather	19°C (67°F)	122 mm (4.8 inches)	75%	very high
October Weather	10°C (50°F)	116 mm (4.6 inches)	80%	high
November Weather	2°C (36°F)	46 mm (1.8 inches)	87%	moderate
December Weather	-2°C (28°F)	37 mm (1.5 inches)	83%	moderate