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December Weather in Alliance, United States

Last updated: June 24, 2025

In Alliance, United States, the average temperature in December hovers around 10°C (50°F). Expect a minimum drop to -5°C (24°F), while the mercury can soar to a maximum of 24°C (75°F). Be prepared for some rain, with an average precipitation amount of 123 mm (4.8 in) spread across 10 days. Additionally, you'll experience an inviting average humidity level of 84%.

December Temperature in Alliance

In December in Alliance, the average temperature is 10°C (50°F), with maximums reaching 24°C (75°F) and minimums dropping as low as -5°C (24°F). This variation in temperature makes it essential for travelers to pack layers to stay comfortable throughout the day.

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

The chart illustrates December temperature patterns in Alliance, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alliance, December typically has an average temperature of 10°C (50°F), with highs reaching up to 24°C (75°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec465154637177808076685550
Data source: Temperature data for Alliance 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 Alliance

In Alliance in December, the total precipitation amount is 123 mm (4.8 in) over the course of 10 days.

December Precipitation Trends in Alliance

The chart displays monthly precipitation patterns in Alliance, 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 Alliance, December typically receives around 123 mm (4.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec77103711061261511661851597096123
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Alliance

In Alliance in December, humidity is 84%. With an average temperature of 10°C (50°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities less comfortable and prompting travelers to seek refuge in cozy, warm cafes or indoor attractions.

December Average Humidity in Alliance

This chart illustrates the average monthly humidity levels in Alliance, 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 Alliance is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%81%80%80%81%82%83%83%80%80%83%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Alliance

In Alliance in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Alliance for better planning.

Maximum UV Index Levels in Alliance for December

The chart shows the monthly maximum UV Index (UVI) for Alliance 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 Alliance typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109854
Data source: Alliance 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 Alliance Compares to Other Months

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

This table compares monthly weather conditions in Alliance, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)76 mm (3.0 inches)84%moderate
February Weather11°C (51°F)103 mm (4.1 inches)81%high
March Weather12°C (54°F)71 mm (2.8 inches)80%very high
April Weather17°C (63°F)106 mm (4.2 inches)80%very high
May Weather22°C (71°F)126 mm (4.9 inches)81%extreme
June Weather25°C (77°F)151 mm (5.9 inches)82%extreme
July Weather27°C (81°F)166 mm (6.5 inches)83%extreme
August Weather26°C (80°F)185 mm (7.3 inches)82%very high
September Weather24°C (76°F)159 mm (6.2 inches)80%very high
October Weather20°C (68°F)70 mm (2.8 inches)79%very high
November Weather13°C (55°F)96 mm (3.8 inches)83%moderate
December Weather10°C (50°F)123 mm (4.8 inches)84%moderate

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