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December Weather in Smithville, United States

Last updated: June 24, 2025

In December, the average temperature in Smithville, United States hovers around 12°C (53°F). Expect a range with minimums dipping to -5°C (24°F) and maximums peaking at 26°C (78°F). With an average humidity of 88%, be prepared for a slightly damp atmosphere and anticipate about 126 mm (5.0 in) of precipitation over 10 days.

December Temperature in Smithville

In December in Smithville, the average temperature is 12°C (53°F). The maximum can reach 26°C (78°F), while the minimum can be as low as -5°C (24°F). This makes Smithville an ideal destination for travelers seeking a mix of mild weather and cooler temperatures, perfect for exploring the area comfortably.

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 12°C (53°F), with highs reaching up to 26°C (78°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec515761667580828279715753
Data source: Temperature data for Smithville generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Smithville

In Smithville in December, the total precipitation amount is 126 mm (5.0 in) spread over a duration of 10 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 126 mm (5.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8711491109839310310710510558126
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Smithville

In Smithville in December humidity is 88%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that clings to your skin, making it crucial to dress in layers and stay prepared for the discomfort while exploring.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%80%76%73%74%80%79%83%77%84%88%
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 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 Smithville for better planning.

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 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479101111111110864
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.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)87 mm (3.4 inches)85%moderate
February Weather14°C (57°F)114 mm (4.5 inches)82%high
March Weather16°C (61°F)91 mm (3.6 inches)80%very high
April Weather19°C (67°F)109 mm (4.3 inches)76%very high
May Weather24°C (75°F)83 mm (3.3 inches)73%extreme
June Weather26°C (80°F)93 mm (3.7 inches)74%extreme
July Weather28°C (83°F)103 mm (4.1 inches)80%extreme
August Weather28°C (82°F)107 mm (4.2 inches)79%extreme
September Weather26°C (79°F)105 mm (4.1 inches)83%very high
October Weather22°C (71°F)105 mm (4.1 inches)77%very high
November Weather14°C (58°F)58 mm (2.3 inches)84%high
December Weather12°C (53°F)126 mm (5.0 inches)88%moderate

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