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January Weather in Chambersburg, United States

Last updated: June 24, 2025

In Chambersburg, United States, the average temperature in January settles at a brisk 0°C (32°F). Expect minimum chills of -18°C (0°F), with the mercury climbing to a comfortable 19°C (66°F) on warmer days. During this month, precipitation typically totals 61 mm (2.4 in) over approximately 8 days, while the average humidity hovers around a damp 86%.

January Temperature in Chambersburg

In January in Chambersburg, the average temperature is 0°C (32°F). The maximum can reach 19°C (66°F), and the minimum can be as low as -18°C (0°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Chambersburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chambersburg, January typically has an average temperature of 0°C (32°F), with highs reaching up to 19°C (66°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec323642526371777468584336
Data source: Temperature data for Chambersburg 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 Chambersburg

In Chambersburg in January, the precipitation amount is 61 mm (2.4 in) distributed over 8 days.

January Precipitation Trends in Chambersburg

The chart displays monthly precipitation patterns in Chambersburg, 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 Chambersburg, January typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec62999010611792128931251088293
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Chambersburg

In Chambersburg in January humidity is 86%. With an average temperature of 0°C (32°F), this humidity feels like a biting chill that seeps into your bones, making travel feel uncomfortable and damp, as the cold air combines with the moisture to create a brisk sensation that may deter outdoor exploration.

January Average Humidity in Chambersburg

This chart illustrates the average monthly humidity levels in Chambersburg, 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 Chambersburg is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Chambersburg

In Chambersburg 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 Chambersburg, you can check the information here.

Maximum UV Index Levels in Chambersburg for January

The chart shows the monthly maximum UV Index (UVI) for Chambersburg 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 Chambersburg typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098642
Data source: Chambersburg 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 Chambersburg Compares to Other Months

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

This table compares monthly weather conditions in Chambersburg, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)61 mm (2.4 inches)86%moderate
February Weather2°C (36°F)99 mm (3.9 inches)86%moderate
March Weather5°C (42°F)90 mm (3.5 inches)86%high
April Weather11°C (53°F)106 mm (4.2 inches)84%very high
May Weather17°C (63°F)117 mm (4.6 inches)78%very high
June Weather22°C (71°F)92 mm (3.6 inches)79%very high
July Weather25°C (77°F)128 mm (5.0 inches)70%very high
August Weather24°C (75°F)93 mm (3.7 inches)59%very high
September Weather20°C (68°F)124 mm (4.9 inches)68%very high
October Weather14°C (58°F)108 mm (4.3 inches)80%high
November Weather6°C (43°F)82 mm (3.2 inches)86%moderate
December Weather2°C (37°F)93 mm (3.7 inches)85%low

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