December Weather in Smithville, United States

Last updated: June 24, 2025

In Smithville, United States, the average temperature in December hovers around 13°C (56°F). Expect a range from a chilly -4°C (25°F) to a warm 30°C (86°F). During this time, you can anticipate 83 mm (3.3 in) of precipitation spread over 7 days, with the air maintaining a notable average humidity of 84%.

December Temperature in Smithville

In December in Smithville, the average temperature is 13°C (56°F). Maximum temperatures can reach 30°C (86°F), while the minimum can drop as low as -4°C (25°F). Travelers should be prepared for a wide range of weather conditions during this time.

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

The chart illustrates December temperature patterns in Smithville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Smithville, December typically has an average temperature of 13°C (56°F), with highs reaching up to 30°C (86°F) and lows dropping to around -4°C (25°F).

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

December Precipitation in Smithville

In Smithville in December, the total precipitation amount is 83 mm (3.3 in) over the course of 7 days.

December Precipitation Trends in Smithville

The chart displays monthly precipitation patterns in Smithville, 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 Smithville, December typically receives around 83 mm (3.3 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 Smithville

In Smithville in December, humidity is 84%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel cooler and more uncomfortable for traveling, as the air clings to your skin and weighs you down with a sense of heaviness.

December Average Humidity in Smithville

This chart illustrates the average monthly humidity levels in Smithville, 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 Smithville is approximately 84%, 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 Smithville

In Smithville in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Smithville.

Maximum UV Index Levels in Smithville for December

The chart shows the monthly maximum UV Index (UVI) for Smithville 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 Smithville typically reaches 5, which falls under the moderate exposure category.

Data source: Smithville 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 Smithville Compares to Other Months

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

This table compares monthly weather conditions in Smithville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (53°F)	56 mm (2.2 inches)	78%	moderate
February Weather	12°C (55°F)	63 mm (2.5 inches)	81%	very high
March Weather	18°C (65°F)	72 mm (2.8 inches)	76%	very high
April Weather	21°C (69°F)	112 mm (4.4 inches)	79%	very high
May Weather	25°C (78°F)	148 mm (5.8 inches)	79%	extreme
June Weather	28°C (83°F)	113 mm (4.5 inches)	74%	extreme
July Weather	29°C (85°F)	86 mm (3.4 inches)	71%	extreme
August Weather	30°C (87°F)	130 mm (5.1 inches)	68%	extreme
September Weather	27°C (81°F)	119 mm (4.7 inches)	73%	very high
October Weather	22°C (72°F)	81 mm (3.2 inches)	75%	very high
November Weather	16°C (61°F)	65 mm (2.6 inches)	78%	high
December Weather	13°C (56°F)	83 mm (3.3 inches)	84%	moderate