December Weather in Garland, United States

Last updated: June 24, 2025

In December, the average temperature in Garland, United States is a cool 10°C (49°F). This month can see temperatures vary dramatically, with minimums dipping to -6°C (21°F) and maximums reaching 25°C (78°F). Expect a precipitation amount of 118 mm (4.6 in) spread over 10 days, and don't forget your umbrella, as the average humidity sits high at 86%. Stay prepared for a mix of weather!

December Temperature in Garland

In December in Garland, the average temperature is 10°C (49°F), with maximums reaching 25°C (78°F) and minimums dropping as low as -6°C (21°F). This variability in temperature makes it essential for travelers to pack accordingly to enjoy their stay comfortably.

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

The chart illustrates December temperature patterns in Garland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Garland, December typically has an average temperature of 10°C (49°F), with highs reaching up to 25°C (78°F) and lows dropping to around -6°C (21°F).

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

December Precipitation in Garland

In Garland in December, the total precipitation amount is 118 mm (4.6 in) over a span of 10 days.

December Precipitation Trends in Garland

The chart displays monthly precipitation patterns in Garland, 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 Garland, December typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 10 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Garland

In Garland in December, humidity is 86%. With an average temperature of 10°C (49°F), this humidity feels like a chilly blanket enveloping you, making travel somewhat uncomfortable as the dampness accentuates the cold, leaving you feeling clammy and chilled, which is a reminder to dress in layers and stay prepared for the damp air.

December Average Humidity in Garland

This chart illustrates the average monthly humidity levels in Garland, 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 Garland is approximately 86%, 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 Garland

In Garland 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 Garland for better planning.

Maximum UV Index Levels in Garland for December

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

Data source: Garland 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 Garland Compares to Other Months

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

This table compares monthly weather conditions in Garland, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	83 mm (3.3 inches)	85%	moderate
February Weather	11°C (52°F)	86 mm (3.4 inches)	82%	high
March Weather	13°C (55°F)	68 mm (2.7 inches)	81%	very high
April Weather	18°C (64°F)	91 mm (3.6 inches)	80%	very high
May Weather	22°C (72°F)	129 mm (5.1 inches)	81%	extreme
June Weather	25°C (77°F)	153 mm (6.0 inches)	81%	extreme
July Weather	27°C (80°F)	138 mm (5.4 inches)	81%	extreme
August Weather	26°C (79°F)	188 mm (7.4 inches)	80%	very high
September Weather	24°C (76°F)	194 mm (7.6 inches)	79%	very high
October Weather	20°C (68°F)	54 mm (2.1 inches)	80%	very high
November Weather	12°C (54°F)	84 mm (3.3 inches)	85%	high
December Weather	10°C (49°F)	118 mm (4.6 inches)	86%	moderate