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December Weather in Ironton, United States

Last updated: June 24, 2025

In December, the average temperature in Ironton, United States hovers around 5°C (41°F), with a minimum dipping to -13°C (10°F) and a maximum reaching up to 20°C (69°F). Expect about 118 mm (4.6 in) of precipitation over approximately 10 days, alongside a relatively high average humidity of 87%.

December Temperature in Ironton

In December in Ironton, the average temperature is 5°C (41°F). Maximums can reach 20°C (69°F) and minimums can be as low as -13°C (10°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates December temperature patterns in Ironton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ironton, December typically has an average temperature of 5°C (41°F), with highs reaching up to 20°C (69°F) and lows dropping to around -13°C (10°F).
JanFebMarAprMayJunJulAugSepOctNovDec364047566673787571604540
Data source: Temperature data for Ironton 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 Ironton

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

December Precipitation Trends in Ironton

The chart displays monthly precipitation patterns in Ironton, 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 Ironton, December typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec9113010712512816610913111011476118
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ironton

In Ironton in December humidity is 87%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket enveloping you, making every step seem laborious and the chill more biting, which can be quite challenging for traveling.

December Average Humidity in Ironton

This chart illustrates the average monthly humidity levels in Ironton, 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 Ironton is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ironton

In Ironton 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 Ironton, you can check the information here.

Maximum UV Index Levels in Ironton for December

The chart shows the monthly maximum UV Index (UVI) for Ironton 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 Ironton typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108753
Data source: Ironton 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 Ironton Compares to Other Months

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

This table compares monthly weather conditions in Ironton, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)91 mm (3.6 inches)88%moderate
February Weather5°C (41°F)130 mm (5.1 inches)88%moderate
March Weather8°C (47°F)107 mm (4.2 inches)87%high
April Weather13°C (56°F)125 mm (4.9 inches)85%very high
May Weather19°C (66°F)128 mm (5.0 inches)81%very high
June Weather23°C (73°F)166 mm (6.5 inches)82%very high
July Weather25°C (78°F)109 mm (4.3 inches)81%very high
August Weather24°C (76°F)130 mm (5.1 inches)73%very high
September Weather21°C (71°F)110 mm (4.3 inches)73%very high
October Weather16°C (60°F)114 mm (4.5 inches)78%high
November Weather7°C (46°F)76 mm (3.0 inches)89%moderate
December Weather5°C (41°F)118 mm (4.6 inches)87%moderate

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