December Weather in Meridian, United States

Last updated: June 24, 2025

In December, the average temperature in Meridian, United States hovers around 1°C (33°F). Expect chilly nights with minimum temperatures plummeting to -18°C (0°F), while the days can bring a warm surprise with highs reaching up to 22°C (72°F). During this time, anticipate 9 mm (0.3 in) of precipitation over 2 days and enjoy the crisp air with an average humidity of 80%.

December Temperature in Meridian

In December in Meridian, the average temperature is 1°C (33°F). Maximum temperatures can reach up to 22°C (72°F), while minimums can drop as low as -18°C (0°F). This stark contrast in temperatures means travelers should pack layers to stay comfortable during their visit.

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

The chart illustrates December temperature patterns in Meridian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Meridian, December typically has an average temperature of 1°C (33°F), with highs reaching up to 22°C (72°F) and lows dropping to around -18°C (0°F).

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

December Precipitation in Meridian

In Meridian in December, the precipitation amount is 9 mm (0.3 in) over a period of 2 days.

December Precipitation Trends in Meridian

The chart displays monthly precipitation patterns in Meridian, 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 Meridian, December typically receives around 9 mm (0.3 inches) of precipitation spread over approximately 2 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 Meridian

In Meridian in December, humidity is 80%. With an average temperature of 1°C (33°F), this humidity feels like a damp chill that seeps into your bones, making travel outdoors an invigorating yet biting experience.

December Average Humidity in Meridian

This chart illustrates the average monthly humidity levels in Meridian, 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 Meridian is approximately 80%, 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 Meridian

In Meridian 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 Meridian, you can check the information here.

Maximum UV Index Levels in Meridian for December

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

Data source: Meridian 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 Meridian Compares to Other Months

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

This table compares monthly weather conditions in Meridian, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	18 mm (0.7 inches)	74%	moderate
February Weather	-2°C (29°F)	19 mm (0.8 inches)	75%	moderate
March Weather	4°C (39°F)	59 mm (2.3 inches)	66%	very high
April Weather	8°C (46°F)	41 mm (1.6 inches)	62%	very high
May Weather	13°C (55°F)	97 mm (3.8 inches)	74%	extreme
June Weather	20°C (68°F)	46 mm (1.8 inches)	76%	extreme
July Weather	23°C (73°F)	57 mm (2.2 inches)	75%	extreme
August Weather	22°C (72°F)	38 mm (1.5 inches)	80%	extreme
September Weather	19°C (66°F)	30 mm (1.2 inches)	79%	very high
October Weather	9°C (48°F)	27 mm (1.1 inches)	77%	high
November Weather	4°C (40°F)	18 mm (0.7 inches)	74%	moderate
December Weather	1°C (33°F)	9 mm (0.3 inches)	80%	moderate