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January Weather in Ironton, United States

Last updated: June 24, 2025

In Ironton, United States, the average temperature in January hovers around -11°C (13°F), with extremes ranging from a chilling -35°C (-31°F) to a milder 5°C (41°F). During this month, expect 19 mm (0.8 in) of precipitation over approximately 4 days, contributing to an average humidity level of 92%. Prepare for a cold and damp experience!

January Temperature in Ironton

In January, in Ironton, the average temperature is -11°C (13°F). The maximum can reach 5°C (41°F), while the minimum can drop as low as -35°C (-31°F). Travelers should be prepared for extremely cold conditions and dress warmly for outdoor activities.

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

The chart illustrates January 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, January typically has an average temperature of -11°C (13°F), with highs reaching up to 5°C (41°F) and lows dropping to around -35°C (-31°F).
JanFebMarAprMayJunJulAugSepOctNovDec121228385468726861463019
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.

January Precipitation in Ironton

In Ironton in January, the precipitation amount is 19 mm (0.8 in) over a span of 4 days.

January Precipitation Trends in Ironton

The chart displays monthly precipitation patterns in Ironton, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Ironton, January typically receives around 19 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec20244068648088921131123053
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Ironton

In Ironton in January, humidity is 92%. With an average temperature of -11°C (13°F), this humidity feels like a biting chill that seeps into your bones, making it uncomfortable for traveling and turning every stroll outdoors into a test of endurance against the cold and damp air.

January Average Humidity in Ironton

This chart illustrates the average monthly humidity levels in Ironton, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Ironton is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%88%83%76%76%76%77%77%82%88%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Ironton

In Ironton in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Ironton, you can visit Hourly UV Index in Ironton.

Maximum UV Index Levels in Ironton for January

The chart shows the monthly maximum UV Index (UVI) for Ironton in January, 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 January, the maximum UV index in Ironton typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457810987532
Data source: Ironton January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (13°F)19 mm (0.8 inches)92%low
February Weather-11°C (12°F)24 mm (0.9 inches)93%moderate
March Weather-2°C (29°F)40 mm (1.6 inches)88%moderate
April Weather3°C (38°F)68 mm (2.7 inches)83%high
May Weather12°C (54°F)64 mm (2.5 inches)76%very high
June Weather20°C (68°F)80 mm (3.2 inches)76%very high
July Weather22°C (72°F)88 mm (3.5 inches)76%very high
August Weather20°C (69°F)92 mm (3.6 inches)77%very high
September Weather16°C (61°F)113 mm (4.4 inches)77%high
October Weather8°C (46°F)112 mm (4.4 inches)82%moderate
November Weather-1°C (30°F)30 mm (1.2 inches)87%moderate
December Weather-7°C (20°F)53 mm (2.1 inches)89%low

Compare Ironton's Climate with Cities Worldwide