January Weather in Unionville, United States

Last updated: June 24, 2025

In January, the average temperature in Unionville, United States hovers around 5°C (42°F), offering a cool atmosphere. Expect a minimum chill of -14°C (7°F) and a maximum reach of 24°C (75°F). With around 115 mm (4.5 in) of precipitation spread over 10 days, staying dry might be a challenge. Humidity levels tend to be high at 87%, adding to the overall ambiance of the season.

January Temperature in Unionville

In January in Unionville, the average temperature is 5°C (42°F), with maximums reaching 24°C (75°F) and minimums plummeting to -14°C (7°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates January temperature patterns in Unionville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Unionville, January typically has an average temperature of 5°C (42°F), with highs reaching up to 24°C (75°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec424654607076797874644946
Data source: Temperature data for Unionville generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Unionville

In Unionville in January, the precipitation amount is 115 mm (4.5 in) over a span of 10 days.

January Precipitation Trends in Unionville

The chart displays monthly precipitation patterns in Unionville, 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 Unionville, January typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec11518818015611513814311511712276147
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Unionville

In Unionville in January humidity is 87%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel less inviting as the air becomes heavy and oppressive.

January Average Humidity in Unionville

This chart illustrates the average monthly humidity levels in Unionville, 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 Unionville is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Unionville

In Unionville 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 Unionville, you can check the information here.

Maximum UV Index Levels in Unionville for January

The chart shows the monthly maximum UV Index (UVI) for Unionville 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 Unionville typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810101111109753
Data source: Unionville 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 Unionville Compares to Other Months

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

This table compares monthly weather conditions in Unionville, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)115 mm (4.5 inches)87%moderate
February Weather8°C (47°F)188 mm (7.4 inches)87%high
March Weather12°C (54°F)180 mm (7.1 inches)85%very high
April Weather15°C (60°F)156 mm (6.1 inches)82%very high
May Weather21°C (70°F)115 mm (4.5 inches)83%very high
June Weather25°C (76°F)138 mm (5.4 inches)82%extreme
July Weather26°C (80°F)143 mm (5.6 inches)78%extreme
August Weather25°C (78°F)115 mm (4.5 inches)67%very high
September Weather23°C (74°F)117 mm (4.6 inches)64%very high
October Weather18°C (64°F)122 mm (4.8 inches)74%high
November Weather10°C (49°F)76 mm (3.0 inches)87%moderate
December Weather8°C (46°F)147 mm (5.8 inches)88%moderate

Compare Unionville's Climate with Cities Worldwide