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January Weather in Round Lake Heights, United States

Last updated: June 24, 2025

In January, the average temperature in Round Lake Heights, United States hovers around -4°C (26°F), with a potential minimum plummeting to -28°C (-18°F) and a maximum reaching 11°C (52°F). Expect 67 mm (2.7 in) of precipitation spread over approximately 9 days, paired with a high average humidity of 85%. Be prepared for a chilly and damp month!

January Temperature in Round Lake Heights

In January in Round Lake Heights, the average temperature is -4°C (26°F), with maximums reaching 11°C (52°F) and minimums plunging as low as -28°C (-18°F). Be prepared for a range of temperatures and pack accordingly for your trip!

January Weather in Round Lake Heights: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Round Lake Heights, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Round Lake Heights, January typically has an average temperature of -4°C (26°F), with highs reaching up to 11°C (52°F) and lows dropping to around -28°C (-18°F).
JanFebMarAprMayJunJulAugSepOctNovDec262736445465727266543933
Data source: Temperature data for Round Lake Heights 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 Round Lake Heights

In Round Lake Heights in January, the precipitation amount is 67 mm (2.7 in), occurring over a span of 9 days.

January Precipitation Trends in Round Lake Heights

The chart displays monthly precipitation patterns in Round Lake Heights, 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 Round Lake Heights, January typically receives around 67 mm (2.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec6765701131561007472851305758
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Round Lake Heights

In Round Lake Heights in January humidity is 85%. With an average temperature of -4°C (26°F), this humidity feels like a biting chill that seeps through your layers, making travel uncomfortable and urging you to seek warmth quickly.

January Average Humidity in Round Lake Heights

This chart illustrates the average monthly humidity levels in Round Lake Heights, 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 Round Lake Heights 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 Round Lake Heights

In Round Lake Heights 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 Round Lake Heights, you can visit Hourly UV Index in Round Lake Heights.

Maximum UV Index Levels in Round Lake Heights for January

The chart shows the monthly maximum UV Index (UVI) for Round Lake Heights 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 Round Lake Heights typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689101098532
Data source: Round Lake Heights 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 Round Lake Heights Compares to Other Months

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

This table compares monthly weather conditions in Round Lake Heights, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)67 mm (2.7 inches)85%low
February Weather-3°C (27°F)65 mm (2.6 inches)85%moderate
March Weather2°C (36°F)70 mm (2.8 inches)85%high
April Weather6°C (44°F)113 mm (4.5 inches)85%very high
May Weather12°C (54°F)156 mm (6.1 inches)78%very high
June Weather18°C (66°F)100 mm (3.9 inches)80%very high
July Weather22°C (73°F)74 mm (2.9 inches)78%very high
August Weather22°C (72°F)72 mm (2.8 inches)76%very high
September Weather19°C (67°F)84 mm (3.3 inches)79%very high
October Weather12°C (54°F)130 mm (5.1 inches)83%moderate
November Weather4°C (39°F)56 mm (2.2 inches)88%moderate
December Weather0°C (33°F)58 mm (2.3 inches)81%low

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