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January Weather in Baraboo, United States

Last updated: June 24, 2025

In January, the average temperature in Baraboo, United States hovers around -7°C (21°F). However, be prepared for temperature fluctuations, as it can dip as low as -33°C (-26°F) and rise to a balmy 10°C (50°F). During this month, expect about 45 mm (1.8 in) of precipitation across 8 days, accompanied by a high average humidity of 85%. Stay warm and ready for chilly weather!

January Temperature in Baraboo

In January, in Baraboo, the average temperature is -7°C (21°F), with maximums reaching up to 10°C (50°F) and minimums dipping as low as -33°C (-26°F). Travelers should be prepared for extremely cold conditions and fluctuations in temperature during this period.

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

The chart illustrates January temperature patterns in Baraboo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Baraboo, January typically has an average temperature of -7°C (21°F), with highs reaching up to 10°C (50°F) and lows dropping to around -33°C (-26°F).
JanFebMarAprMayJunJulAugSepOctNovDec202135455970747164503628
Data source: Temperature data for Baraboo 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 Baraboo

In Baraboo in January, the precipitation amount is 45 mm (1.8 in) over the course of 8 days.

January Precipitation Trends in Baraboo

The chart displays monthly precipitation patterns in Baraboo, 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 Baraboo, January typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec45535890126112911071041094545
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Baraboo

In Baraboo in January, humidity is 85%. With an average temperature of -7°C (21°F), this humidity feels like a biting chill that seeps into your bones, making travel quite uncomfortable and requiring extra layers to stay warm while navigating through the damp air.

January Average Humidity in Baraboo

This chart illustrates the average monthly humidity levels in Baraboo, 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 Baraboo 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 Baraboo

In Baraboo 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 Baraboo, you can visit Hourly UV Index in Baraboo.

Maximum UV Index Levels in Baraboo for January

The chart shows the monthly maximum UV Index (UVI) for Baraboo 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 Baraboo typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24589101097532
Data source: Baraboo 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 Baraboo Compares to Other Months

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

This table compares monthly weather conditions in Baraboo, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (21°F)45 mm (1.8 inches)85%low
February Weather-6°C (22°F)53 mm (2.1 inches)85%moderate
March Weather2°C (35°F)58 mm (2.3 inches)85%moderate
April Weather7°C (45°F)90 mm (3.6 inches)85%very high
May Weather15°C (59°F)126 mm (5.0 inches)78%very high
June Weather21°C (70°F)112 mm (4.4 inches)80%very high
July Weather23°C (74°F)91 mm (3.6 inches)78%very high
August Weather21°C (71°F)107 mm (4.2 inches)76%very high
September Weather18°C (64°F)104 mm (4.1 inches)79%high
October Weather10°C (51°F)109 mm (4.3 inches)83%moderate
November Weather2°C (36°F)45 mm (1.8 inches)88%moderate
December Weather-2°C (28°F)45 mm (1.8 inches)81%low

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