December Weather in Hills, United States

Last updated: June 24, 2025

In Hills, United States, the average temperature in December hovers around 0°C (32°F), with a striking range from a chilly -22°C (-7°F) to a mild 22°C (73°F). Visitors can expect an average of 48 mm (1.9 in) of precipitation spread over 5 days, contributing to a humid atmosphere with an average humidity of 84%. Prepare accordingly for a season that swings from frosty to pleasantly warm!

December Temperature in Hills

In December in Hills, the average temperature is 0°C (32°F). The maximum can reach 22°C (73°F), while the minimum can drop as low as -22°C (-7°F). Be prepared for a wide range of temperatures when traveling during this month.

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

The chart illustrates December temperature patterns in Hills, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hills, December typically has an average temperature of 0°C (32°F), with highs reaching up to 22°C (73°F) and lows dropping to around -22°C (-7°F).

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

December Precipitation in Hills

In Hills in December, the precipitation amount is 48 mm (1.9 in) spread over the course of 5 days.

December Precipitation Trends in Hills

The chart displays monthly precipitation patterns in Hills, 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 Hills, December typically receives around 48 mm (1.9 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 Hills

In Hills in December, humidity is 84%. With an average temperature of 0°C (32°F), this humidity feels like a cold, damp chill that seeps into your clothes, making traveling uncomfortable and necessitating extra layers to stay warm despite the moisture-laden air.

December Average Humidity in Hills

This chart illustrates the average monthly humidity levels in Hills, 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 Hills is approximately 84%, 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 Hills

In Hills 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 Hills, you can check the information here.

Maximum UV Index Levels in Hills for December

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

Data source: Hills 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 Hills Compares to Other Months

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

This table compares monthly weather conditions in Hills, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	49 mm (1.9 inches)	81%	moderate
February Weather	-4°C (25°F)	59 mm (2.3 inches)	81%	moderate
March Weather	4°C (40°F)	84 mm (3.3 inches)	81%	high
April Weather	10°C (50°F)	85 mm (3.4 inches)	82%	very high
May Weather	17°C (63°F)	139 mm (5.5 inches)	78%	very high
June Weather	23°C (74°F)	133 mm (5.2 inches)	81%	extreme
July Weather	25°C (77°F)	70 mm (2.8 inches)	79%	very high
August Weather	23°C (74°F)	72 mm (2.8 inches)	77%	very high
September Weather	20°C (69°F)	123 mm (4.8 inches)	78%	very high
October Weather	12°C (54°F)	129 mm (5.1 inches)	78%	high
November Weather	4°C (39°F)	51 mm (2.0 inches)	87%	moderate
December Weather	0°C (32°F)	48 mm (1.9 inches)	84%	moderate