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January Weather in Mount Pleasant, United States

Last updated: June 24, 2025

In Mount Pleasant, United States, the average temperature in January hovers around -6°C (22°F), with extremes ranging from a chilly -25°C (-13°F) to a mild 8°C (47°F). Expect about 56 mm (2.2 in) of precipitation spread over 9 days, coupled with a high average humidity of 87%. Prepare for a damp and frosty atmosphere!

January Temperature in Mount Pleasant

In January in Mount Pleasant, the average temperature is -6°C (22°F). The maximum can reach 8°C (47°F), while the minimum can dip as low as -25°C (-13°F). Travelers should be prepared for cold conditions and pack appropriate winter clothing.

January Weather in Mount Pleasant: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Mount Pleasant, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Pleasant, January typically has an average temperature of -6°C (22°F), with highs reaching up to 8°C (47°F) and lows dropping to around -25°C (-13°F).
JanFebMarAprMayJunJulAugSepOctNovDec222432384863706858413323
Data source: Temperature data for Mount Pleasant 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 Mount Pleasant

In Mount Pleasant in January, the precipitation amount is 56 mm (2.2 in) over a period of 9 days.

January Precipitation Trends in Mount Pleasant

The chart displays monthly precipitation patterns in Mount Pleasant, 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 Mount Pleasant, January typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec565960436318422531403653
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Mount Pleasant

In Mount Pleasant in January, humidity is 87%. With an average temperature of -6°C (22°F), this humidity feels like a chilling weight on your skin, making traveling quite uncomfortable as you face an icy dampness that seeps into your layers, amplifying the cold and making every step feel arduous.

January Average Humidity in Mount Pleasant

This chart illustrates the average monthly humidity levels in Mount Pleasant, 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 Mount Pleasant is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%77%70%54%45%37%34%47%67%82%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Mount Pleasant

In Mount Pleasant in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Mount Pleasant for better planning.

Maximum UV Index Levels in Mount Pleasant for January

The chart shows the monthly maximum UV Index (UVI) for Mount Pleasant 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 Mount Pleasant typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101112121110754
Data source: Mount Pleasant 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 Mount Pleasant Compares to Other Months

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

This table compares monthly weather conditions in Mount Pleasant, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)56 mm (2.2 inches)87%moderate
February Weather-5°C (24°F)59 mm (2.3 inches)88%high
March Weather0°C (32°F)60 mm (2.4 inches)77%very high
April Weather3°C (38°F)43 mm (1.7 inches)69%very high
May Weather9°C (49°F)63 mm (2.5 inches)54%extreme
June Weather17°C (63°F)18 mm (0.7 inches)45%extreme
July Weather21°C (70°F)42 mm (1.7 inches)37%extreme
August Weather20°C (68°F)25 mm (1.0 inches)34%extreme
September Weather15°C (59°F)31 mm (1.2 inches)47%very high
October Weather5°C (42°F)40 mm (1.6 inches)67%high
November Weather1°C (34°F)36 mm (1.4 inches)82%moderate
December Weather-5°C (23°F)53 mm (2.1 inches)87%moderate

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