December Weather in Glenrock, United States

Last updated: June 24, 2025

In December, the average temperature in Glenrock, United States hovers around -3°C (27°F). Expect to experience a chilly range with minimums dipping to -24°C (-11°F) and maximums soaring to 17°C (63°F). Additionally, precipitation averages 27 mm (1.1 in) over approximately 7 days, accompanied by a notable humidity level of 81%. Prepare accordingly for the wintry conditions!

December Temperature in Glenrock

In December in Glenrock, the average temperature is -3°C (27°F), with maximums reaching up to 17°C (63°F) and minimums dropping as low as -24°C (-11°F). Be sure to pack layers and prepare for a wide range of temperatures if you're planning to visit during this time.

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

The chart illustrates December temperature patterns in Glenrock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glenrock, December typically has an average temperature of -3°C (27°F), with highs reaching up to 17°C (63°F) and lows dropping to around -24°C (-11°F).

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

December Precipitation in Glenrock

In Glenrock in December, the precipitation amount is 27 mm (1.1 in) accumulated over 7 days.

December Precipitation Trends in Glenrock

The chart displays monthly precipitation patterns in Glenrock, 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 Glenrock, December typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 7 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 Glenrock

In Glenrock in December humidity is 81%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making traveling uncomfortable and forcing you to bundle up tightly to fend off the cold dampness.

December Average Humidity in Glenrock

This chart illustrates the average monthly humidity levels in Glenrock, 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 Glenrock is approximately 81%, 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 Glenrock

In Glenrock 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 Glenrock, you can check the information here.

Maximum UV Index Levels in Glenrock for December

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

Data source: Glenrock 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 Glenrock Compares to Other Months

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

This table compares monthly weather conditions in Glenrock, 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 (24°F)	23 mm (0.9 inches)	79%	moderate
February Weather	-6°C (21°F)	35 mm (1.4 inches)	81%	high
March Weather	1°C (33°F)	57 mm (2.2 inches)	70%	high
April Weather	4°C (39°F)	64 mm (2.5 inches)	67%	extreme
May Weather	10°C (50°F)	87 mm (3.4 inches)	70%	very high
June Weather	18°C (64°F)	42 mm (1.7 inches)	75%	extreme
July Weather	22°C (72°F)	28 mm (1.1 inches)	76%	extreme
August Weather	20°C (69°F)	29 mm (1.1 inches)	76%	very high
September Weather	16°C (61°F)	35 mm (1.4 inches)	72%	very high
October Weather	5°C (42°F)	48 mm (1.9 inches)	70%	high
November Weather	2°C (35°F)	29 mm (1.1 inches)	76%	moderate
December Weather	-3°C (27°F)	27 mm (1.1 inches)	81%	moderate