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December Weather in Hershey, United States

Last updated: June 24, 2025

In December, the average temperature in Hershey, United States hovers around -1°C (31°F), with extremes ranging from a chilly minimum of -24°C (-10°F) to a surprising maximum of 23°C (73°F). You'll experience about 25 mm (1.0 in) of precipitation over the course of 4 days, accompanied by an average humidity of 78%. Stay prepared for the diverse climate!

December Temperature in Hershey

In December in Hershey, the average temperature is -1°C (31°F). Maximums can reach 23°C (73°F), while minimums can drop as low as -24°C (-10°F). Travelers should prepare for a wide range of temperatures and dress in layers to enjoy their visit comfortably.

December Weather in Hershey: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Hershey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hershey, December typically has an average temperature of -1°C (31°F), with highs reaching up to 23°C (73°F) and lows dropping to around -24°C (-10°F).
JanFebMarAprMayJunJulAugSepOctNovDec282639475872767367493931
Data source: Temperature data for Hershey 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.

December Precipitation in Hershey

In Hershey in December, the precipitation amount is 25 mm (1.0 in) over the course of 4 days.

December Precipitation Trends in Hershey

The chart displays monthly precipitation patterns in Hershey, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Hershey, December typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec1419684611467666447422226
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hershey

In Hershey in December humidity is 78%. With an average temperature of -1°C (31°F), this humidity feels like a biting chill that seeps into your bones, making traveling uncomfortable and forcing you to bundle up tightly in layers to fend off the damp cold.

December Average Humidity in Hershey

This chart illustrates the average monthly humidity levels in Hershey, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Hershey is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%80%64%64%76%79%77%79%70%64%75%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hershey

In Hershey in December, 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 Hershey, you can check the information here.

Maximum UV Index Levels in Hershey for December

The chart shows the monthly maximum UV Index (UVI) for Hershey in December, 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 December, the maximum UV index in Hershey typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Hershey December 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 December Weather in Hershey Compares to Other Months

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

This table compares monthly weather conditions in Hershey, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)14 mm (0.6 inches)73%moderate
February Weather-3°C (26°F)19 mm (0.7 inches)80%moderate
March Weather4°C (40°F)68 mm (2.7 inches)64%high
April Weather8°C (47°F)46 mm (1.8 inches)64%very high
May Weather14°C (58°F)113 mm (4.5 inches)76%very high
June Weather22°C (72°F)66 mm (2.6 inches)79%extreme
July Weather24°C (76°F)66 mm (2.6 inches)77%extreme
August Weather23°C (73°F)64 mm (2.5 inches)79%very high
September Weather19°C (67°F)47 mm (1.9 inches)70%very high
October Weather9°C (49°F)42 mm (1.7 inches)64%high
November Weather4°C (39°F)22 mm (0.9 inches)75%moderate
December Weather-1°C (31°F)25 mm (1.0 inches)78%moderate

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