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December Weather in Harrison, United States

Last updated: June 24, 2025

In Harrison, United States, the average temperature in December hovers around 0°C (31°F). Expect a chilly minimum of -27°C (-16°F) and a warmer maximum of 23°C (73°F). Precipitation is moderate, with around 26 mm (1.0 in) expected over 6 days, while the average humidity sits comfortably at 75%.

December Temperature in Harrison

In December in Harrison, the average temperature is 0°C (31°F). Maximums can reach 23°C (73°F), while minimums can drop to as low as -27°C (-16°F). Be prepared for a wide range of temperatures, making this an ideal time to experience both crisp days and potentially warmer afternoons.

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

The chart illustrates December temperature patterns in Harrison, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harrison, December typically has an average temperature of 0°C (31°F), with highs reaching up to 23°C (73°F) and lows dropping to around -27°C (-16°F).
JanFebMarAprMayJunJulAugSepOctNovDec292537445468747163453831
Data source: Temperature data for Harrison 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 Harrison

In Harrison in December, the precipitation amount is 26 mm (1.0 in) over the course of 6 days.

December Precipitation Trends in Harrison

The chart displays monthly precipitation patterns in Harrison, 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 Harrison, December typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec162857579157433535462226
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Harrison

In Harrison in December humidity is 75%. With an average temperature of 0°C (31°F), this humidity feels like a biting chill that clings to your skin, making even short excursions outside feel daunting and uncomfortable for travelers.

December Average Humidity in Harrison

This chart illustrates the average monthly humidity levels in Harrison, 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 Harrison is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%78%64%66%74%84%85%85%76%71%73%75%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Harrison

In Harrison 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 Harrison, you can check the information here.

Maximum UV Index Levels in Harrison for December

The chart shows the monthly maximum UV Index (UVI) for Harrison 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 Harrison typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35610101111108643
Data source: Harrison 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 Harrison Compares to Other Months

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

This table compares monthly weather conditions in Harrison, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)16 mm (0.6 inches)73%moderate
February Weather-4°C (26°F)28 mm (1.1 inches)78%moderate
March Weather3°C (38°F)57 mm (2.2 inches)64%high
April Weather6°C (44°F)57 mm (2.3 inches)66%very high
May Weather12°C (54°F)91 mm (3.6 inches)74%very high
June Weather20°C (68°F)57 mm (2.2 inches)84%extreme
July Weather23°C (74°F)43 mm (1.7 inches)85%extreme
August Weather22°C (71°F)35 mm (1.4 inches)85%very high
September Weather17°C (64°F)35 mm (1.4 inches)76%very high
October Weather7°C (46°F)45 mm (1.8 inches)71%high
November Weather4°C (39°F)22 mm (0.9 inches)73%moderate
December Weather0°C (31°F)26 mm (1.0 inches)75%moderate

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