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January Weather in Lanark, United States

Last updated: June 24, 2025

In January, the average temperature in Lanark, United States hovers around -5°C (23°F). Expect chilly conditions, with temperatures dipping as low as -32°C (-25°F) and potentially reaching a maximum of 12°C (54°F). During this month, precipitation averages 59 mm (2.3 in) spread over 7 days, contributing to a high average humidity of 82%.

January Temperature in Lanark

In January in Lanark, the average temperature is -5°C (23°F). The maximum can reach 12°C (54°F), and the minimum can drop as low as -32°C (-25°F). Travelers should be prepared for extremely cold conditions and pack accordingly to enjoy their visit.

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

The chart illustrates January temperature patterns in Lanark, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lanark, January typically has an average temperature of -5°C (23°F), with highs reaching up to 12°C (54°F) and lows dropping to around -32°C (-25°F).
JanFebMarAprMayJunJulAugSepOctNovDec232539486172757267533831
Data source: Temperature data for Lanark 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 Lanark

In Lanark in January, the precipitation amount is 59 mm (2.3 in) over a span of 7 days.

January Precipitation Trends in Lanark

The chart displays monthly precipitation patterns in Lanark, 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 Lanark, January typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec59598210814812989821191134951
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Lanark

In Lanark in January humidity is 82%. With an average temperature of -5°C (23°F), this humidity feels like a damp chill that seeps into your bones, making it uncomfortable for traveling.

January Average Humidity in Lanark

This chart illustrates the average monthly humidity levels in Lanark, 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 Lanark is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Lanark

In Lanark 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 Lanark, you can check the information here.

Maximum UV Index Levels in Lanark for January

The chart shows the monthly maximum UV Index (UVI) for Lanark 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 Lanark typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098632
Data source: Lanark 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 Lanark Compares to Other Months

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

This table compares monthly weather conditions in Lanark, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)59 mm (2.3 inches)82%moderate
February Weather-4°C (25°F)59 mm (2.3 inches)83%moderate
March Weather4°C (39°F)82 mm (3.2 inches)84%high
April Weather9°C (48°F)108 mm (4.2 inches)85%very high
May Weather16°C (61°F)148 mm (5.8 inches)79%very high
June Weather22°C (72°F)129 mm (5.1 inches)82%very high
July Weather24°C (76°F)89 mm (3.5 inches)80%very high
August Weather22°C (73°F)82 mm (3.2 inches)81%very high
September Weather20°C (67°F)119 mm (4.7 inches)80%very high
October Weather12°C (53°F)113 mm (4.4 inches)82%high
November Weather3°C (38°F)49 mm (1.9 inches)88%moderate
December Weather0°C (32°F)51 mm (2.0 inches)84%low

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