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January Weather in Monona, United States

Last updated: June 24, 2025

In January, the average temperature in Monona, United States hovers around -6°C (21°F). Expect extremes, with the minimum plummeting to -32°C (-25°F) and the maximum reaching a brisk 11°C (52°F). During this time, the region sees about 55 mm (2.1 in) of precipitation over 8 days, coupled with an average humidity of 85%—making for a chilly and damp experience!

January Temperature in Monona

In January in Monona, the average temperature is -6°C (21°F). Maximums can reach 11°C (52°F), while minimums can dip as low as -32°C (-25°F). Travelers should be prepared for extreme cold conditions and pack warm clothing accordingly.

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

The chart illustrates January temperature patterns in Monona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monona, January typically has an average temperature of -6°C (21°F), with highs reaching up to 11°C (52°F) and lows dropping to around -32°C (-25°F).
JanFebMarAprMayJunJulAugSepOctNovDec212236465971757165513629
Data source: Temperature data for Monona 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 Monona

In Monona in January, the precipitation amount is 55 mm (2.1 in) over a span of 8 days.

January Precipitation Trends in Monona

The chart displays monthly precipitation patterns in Monona, 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 Monona, January typically receives around 55 mm (2.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec55545999132118901091181174348
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Monona

In Monona in January, humidity is 85%. With an average temperature of -6°C (21°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and forcing you to bundle up even more than usual as you navigate through frosty air.

January Average Humidity in Monona

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

In Monona 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 Monona, you can check the information here.

Maximum UV Index Levels in Monona for January

The chart shows the monthly maximum UV Index (UVI) for Monona 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 Monona typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101098532
Data source: Monona 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 Monona Compares to Other Months

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

This table compares monthly weather conditions in Monona, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)55 mm (2.1 inches)85%moderate
February Weather-5°C (23°F)54 mm (2.1 inches)85%moderate
March Weather2°C (36°F)59 mm (2.3 inches)85%moderate
April Weather8°C (46°F)99 mm (3.9 inches)85%very high
May Weather15°C (60°F)132 mm (5.2 inches)78%very high
June Weather21°C (71°F)118 mm (4.7 inches)80%very high
July Weather24°C (75°F)90 mm (3.5 inches)78%very high
August Weather22°C (72°F)109 mm (4.3 inches)76%very high
September Weather18°C (65°F)118 mm (4.6 inches)79%very high
October Weather11°C (52°F)117 mm (4.6 inches)83%moderate
November Weather2°C (37°F)43 mm (1.7 inches)88%moderate
December Weather-2°C (30°F)48 mm (1.9 inches)81%low

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