December Weather in Landmark, United States

Last updated: June 24, 2025

In December, the average temperature in Landmark, United States hovers around 9°C (48°F). Expect a notable range, with minimum temperatures plunging to -8°C (18°F) and highs reaching up to 26°C (80°F). During this period, precipitation totals approximately 153 mm (6.0 in) spread over 10 days, contributing to an average humidity level of 88%.

December Temperature in Landmark

In December in Landmark, the average temperature is 9°C (48°F), with maximums reaching up to 26°C (80°F) and minimums dipping as low as -8°C (18°F). This wide temperature range makes it essential for travelers to pack accordingly and be prepared for varying weather conditions.

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

The chart illustrates December temperature patterns in Landmark, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Landmark, December typically has an average temperature of 9°C (48°F), with highs reaching up to 26°C (80°F) and lows dropping to around -8°C (18°F).

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

December Precipitation in Landmark

In Landmark in December, the precipitation amount is 153 mm (6.0 in) over a span of 10 days.

December Precipitation Trends in Landmark

The chart displays monthly precipitation patterns in Landmark, 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 Landmark, December typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 10 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 Landmark

In Landmark in December, humidity is 88%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill settling into your bones, making outdoor exploration feel heavy and oppressive.

December Average Humidity in Landmark

This chart illustrates the average monthly humidity levels in Landmark, 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 Landmark is approximately 88%, 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 Landmark

In Landmark in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Landmark for better planning.

Maximum UV Index Levels in Landmark for December

The chart shows the monthly maximum UV Index (UVI) for Landmark 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 Landmark typically reaches 4, which falls under the moderate exposure category.

Data source: Landmark 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 Landmark Compares to Other Months

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

This table compares monthly weather conditions in Landmark, 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 (43°F)	93 mm (3.6 inches)	84%	moderate
February Weather	8°C (47°F)	150 mm (5.9 inches)	83%	high
March Weather	14°C (57°F)	154 mm (6.1 inches)	81%	very high
April Weather	17°C (62°F)	163 mm (6.4 inches)	81%	very high
May Weather	22°C (72°F)	154 mm (6.1 inches)	83%	extreme
June Weather	26°C (80°F)	105 mm (4.1 inches)	83%	extreme
July Weather	28°C (82°F)	102 mm (4.0 inches)	81%	extreme
August Weather	27°C (81°F)	114 mm (4.5 inches)	74%	very high
September Weather	25°C (77°F)	100 mm (3.9 inches)	71%	very high
October Weather	18°C (65°F)	108 mm (4.2 inches)	76%	high
November Weather	11°C (52°F)	75 mm (3.0 inches)	84%	moderate
December Weather	9°C (48°F)	153 mm (6.0 inches)	88%	moderate