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January Weather in Belleville, United States

Last updated: June 24, 2025

In January, the average temperature in Belleville, United States hovers around -6°C (22°F). Expect stark fluctuations, with minimums plunging to -32°C (-26°F) and maxima reaching a warm 11°C (52°F). The month also sees 55 mm (2.2 in) of precipitation spread over approximately 8 days, contributing to an average humidity of 85%.

January Temperature in Belleville

In January in Belleville, the average temperature is -6°C (22°F). Maximum temperatures can reach 11°C (52°F), while minimums can plunge as low as -32°C (-26°F). Travelers should prepare for chilly conditions and dress warmly when visiting during this time.

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

The chart illustrates January temperature patterns in Belleville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Belleville, January typically has an average temperature of -6°C (22°F), with highs reaching up to 11°C (52°F) and lows dropping to around -32°C (-26°F).
JanFebMarAprMayJunJulAugSepOctNovDec222337476071757266523730
Data source: Temperature data for Belleville 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 Belleville

In Belleville in January, the precipitation amount is 55 mm (2.2 in) over the course of 8 days.

January Precipitation Trends in Belleville

The chart displays monthly precipitation patterns in Belleville, 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 Belleville, January typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec55545997136124781061181134349
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Belleville

In Belleville in January humidity is 85%. With an average temperature of -6°C (22°F), this humidity feels like an icy mist clinging to your skin, making outdoor activities uncomfortably chilly and causing your breath to cloud in the cold air, leaving you yearning for warmth and cozy indoor retreats while traveling.

January Average Humidity in Belleville

This chart illustrates the average monthly humidity levels in Belleville, 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 Belleville is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Belleville

In Belleville in January, 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 Belleville, you can check the information here.

Maximum UV Index Levels in Belleville for January

The chart shows the monthly maximum UV Index (UVI) for Belleville 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 Belleville typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098532
Data source: Belleville 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 Belleville Compares to Other Months

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

This table compares monthly weather conditions in Belleville, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)55 mm (2.2 inches)85%moderate
February Weather-5°C (24°F)54 mm (2.1 inches)85%moderate
March Weather3°C (37°F)59 mm (2.3 inches)85%high
April Weather8°C (47°F)97 mm (3.8 inches)85%very high
May Weather16°C (60°F)136 mm (5.3 inches)78%very high
June Weather22°C (71°F)124 mm (4.9 inches)80%very high
July Weather24°C (75°F)78 mm (3.1 inches)78%very high
August Weather22°C (72°F)106 mm (4.2 inches)76%very high
September Weather19°C (66°F)118 mm (4.6 inches)79%very high
October Weather11°C (52°F)113 mm (4.5 inches)83%moderate
November Weather3°C (37°F)43 mm (1.7 inches)88%moderate
December Weather-1°C (30°F)49 mm (1.9 inches)81%low

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