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December Weather in Highland, United States

Last updated: June 24, 2025

In December, the average temperature in Highland, United States hovers around 2°C (36°F), with a minimum reaching as low as -20°C (-4°F) and a maximum soaring to 23°C (73°F). During this season, you can expect 32 mm (1.3 in) of precipitation spread over about 3 days, while the average humidity remains high at 84%. Prepare accordingly for the chill!

December Temperature in Highland

In December in Highland, the average temperature is 2°C (36°F). Maximums can reach 23°C (73°F), while minimums can drop as low as -20°C (-4°F). Prepare for a wide range of temperatures and pack accordingly to ensure a comfortable travel experience.

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

The chart illustrates December temperature patterns in Highland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Highland, December typically has an average temperature of 2°C (36°F), with highs reaching up to 23°C (73°F) and lows dropping to around -20°C (-4°F).
JanFebMarAprMayJunJulAugSepOctNovDec293045536577797671564336
Data source: Temperature data for Highland 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 Highland

In Highland in December, the total precipitation amount is 32 mm (1.3 in) over a span of 3 days.

December Precipitation Trends in Highland

The chart displays monthly precipitation patterns in Highland, 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 Highland, December typically receives around 32 mm (1.3 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec4232968019511781121841274032
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Highland

In Highland in December, humidity is 84%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket wrapping around you, making outdoor activities less inviting and requiring extra layers to stay comfortable while traveling.

December Average Humidity in Highland

This chart illustrates the average monthly humidity levels in Highland, 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 Highland is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Highland

In Highland 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 Highland, you can check the information here.

Maximum UV Index Levels in Highland for December

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

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

This table compares monthly weather conditions in Highland, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)42 mm (1.6 inches)76%moderate
February Weather-1°C (31°F)32 mm (1.3 inches)77%moderate
March Weather7°C (45°F)96 mm (3.8 inches)70%high
April Weather12°C (53°F)80 mm (3.2 inches)73%very high
May Weather18°C (65°F)195 mm (7.7 inches)82%very high
June Weather25°C (77°F)117 mm (4.6 inches)82%extreme
July Weather26°C (79°F)81 mm (3.2 inches)81%extreme
August Weather24°C (76°F)121 mm (4.7 inches)78%very high
September Weather22°C (72°F)84 mm (3.3 inches)71%very high
October Weather13°C (56°F)127 mm (5.0 inches)71%high
November Weather6°C (43°F)40 mm (1.6 inches)81%moderate
December Weather2°C (36°F)32 mm (1.3 inches)84%moderate

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