December Weather in Gladstone, United States

Last updated: June 24, 2025

In December, the average temperature in Gladstone, United States is a brisk -3°C (28°F). Expect the mercury to dip as low as -22°C (-7°F) at times, while the maximum can nudge up to 11°C (51°F). With a precipitation amount of 67 mm (2.6 in) spread over 9 days, you'll want to prepare for some damp weather. Additionally, the average humidity is quite high at 87%, adding to the chilly atmosphere.

December Temperature in Gladstone

In December in Gladstone, the average temperature is -3°C (28°F), with maximums reaching 11°C (51°F) and minimums dropping as low as -22°C (-7°F). This chilly climate makes Gladstone a destination for winter enthusiasts looking to embrace the cold and enjoy winter sports or cozy indoor activities.

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

The chart illustrates December temperature patterns in Gladstone, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gladstone, December typically has an average temperature of -3°C (28°F), with highs reaching up to 11°C (51°F) and lows dropping to around -22°C (-7°F).

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

December Precipitation in Gladstone

In Gladstone in December, the total precipitation amount is 67 mm (2.6 in), occurring over a span of 9 days.

December Precipitation Trends in Gladstone

The chart displays monthly precipitation patterns in Gladstone, 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 Gladstone, December typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 9 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 Gladstone

In Gladstone in December humidity is 87%. With an average temperature of -3°C (28°F), this humidity feels like a biting chill that clings to your skin, making travel quite uncomfortable and forcing you to bundle up extra just to stay warm.

December Average Humidity in Gladstone

This chart illustrates the average monthly humidity levels in Gladstone, 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 Gladstone is approximately 87%, 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 Gladstone

In Gladstone in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Gladstone, you can visit Hourly UV Index in Gladstone.

Maximum UV Index Levels in Gladstone for December

The chart shows the monthly maximum UV Index (UVI) for Gladstone 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 Gladstone typically reaches 2, which falls under the low exposure category.

Data source: Gladstone 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 Gladstone Compares to Other Months

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

This table compares monthly weather conditions in Gladstone, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	41 mm (1.6 inches)	91%	low
February Weather	-6°C (21°F)	55 mm (2.2 inches)	91%	moderate
March Weather	-2°C (29°F)	61 mm (2.4 inches)	87%	moderate
April Weather	2°C (37°F)	90 mm (3.5 inches)	87%	high
May Weather	9°C (48°F)	81 mm (3.2 inches)	82%	very high
June Weather	16°C (60°F)	99 mm (3.9 inches)	79%	very high
July Weather	20°C (69°F)	91 mm (3.6 inches)	75%	very high
August Weather	19°C (67°F)	96 mm (3.8 inches)	76%	very high
September Weather	16°C (61°F)	98 mm (3.8 inches)	79%	high
October Weather	10°C (50°F)	117 mm (4.6 inches)	83%	moderate
November Weather	2°C (36°F)	64 mm (2.5 inches)	86%	moderate
December Weather	-3°C (28°F)	67 mm (2.6 inches)	87%	low