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January Weather in Summit Hill, United States

Last updated: June 24, 2025

In January, the average temperature in Summit Hill, United States hovers around -1°C (31°F). During this time, you might experience a minimum chill of -20°C (-4°F), while highs can reach up to 17°C (63°F). Expect about 73 mm (2.9 in) of precipitation spread over 8 days, alongside an average humidity level of 87%. Prepare accordingly for a mix of wintery conditions!

January Temperature in Summit Hill

In January in Summit Hill, the average temperature is -1°C (31°F). Maximum temperatures can reach as high as 17°C (63°F), while the minimum can drop to a chilling -20°C (-4°F). Be prepared for a wide range of temperatures when traveling during this month, so pack accordingly!

January Weather in Summit Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Summit Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Summit Hill, January typically has an average temperature of -1°C (31°F), with highs reaching up to 17°C (63°F) and lows dropping to around -20°C (-4°F).
JanFebMarAprMayJunJulAugSepOctNovDec313439506170757367574235
Data source: Temperature data for Summit Hill 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 Summit Hill

In Summit Hill in January, the precipitation amount is 73 mm (2.9 in) over a span of 8 days.

January Precipitation Trends in Summit Hill

The chart displays monthly precipitation patterns in Summit Hill, 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 Summit Hill, January typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec731069811113811214714911111494101
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Summit Hill

In Summit Hill in January humidity is 87%. With an average temperature of -1°C (31°F), this humidity feels like a biting chill that seeps through your clothes, making traveling incredibly uncomfortable as it adds a layer of dampness to the already cold air, leaving you shivering and wishing for warmth.

January Average Humidity in Summit Hill

This chart illustrates the average monthly humidity levels in Summit Hill, 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 Summit Hill is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%85%83%75%74%65%62%66%79%87%85%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Summit Hill

In Summit Hill 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 Summit Hill, you can check the information here.

Maximum UV Index Levels in Summit Hill for January

The chart shows the monthly maximum UV Index (UVI) for Summit Hill 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 Summit Hill typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Summit Hill 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 Summit Hill Compares to Other Months

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

This table compares monthly weather conditions in Summit Hill, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)73 mm (2.9 inches)87%moderate
February Weather1°C (34°F)105 mm (4.2 inches)85%moderate
March Weather4°C (40°F)98 mm (3.9 inches)85%high
April Weather10°C (50°F)111 mm (4.4 inches)83%very high
May Weather16°C (61°F)137 mm (5.4 inches)75%very high
June Weather21°C (70°F)112 mm (4.4 inches)73%very high
July Weather24°C (76°F)147 mm (5.8 inches)65%very high
August Weather23°C (73°F)149 mm (5.9 inches)62%very high
September Weather19°C (67°F)111 mm (4.4 inches)66%very high
October Weather14°C (57°F)114 mm (4.5 inches)79%high
November Weather5°C (42°F)94 mm (3.7 inches)87%moderate
December Weather2°C (35°F)101 mm (4.0 inches)85%low

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