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December Weather in Aztec, United States

Last updated: June 24, 2025

In Aztec, United States, the average temperature in December hovers around -1°C (31°F). Expect lows of -19°C (-2°F) and highs reaching 16°C (61°F). During this month, precipitation totals approximately 29 mm (1.2 in) over about 5 days, accompanied by an average humidity of 85%.

December Temperature in Aztec

In December in Aztec, the average temperature is -1°C (31°F). Maximums can reach 16°C (61°F), while minimums can plummet to as low as -19°C (-2°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates December temperature patterns in Aztec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aztec, December typically has an average temperature of -1°C (31°F), with highs reaching up to 16°C (61°F) and lows dropping to around -19°C (-2°F).
JanFebMarAprMayJunJulAugSepOctNovDec283443546374787668534230
Data source: Temperature data for Aztec 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 Aztec

In Aztec in December, the precipitation amount is 29 mm (1.2 in) over a period of 5 days.

December Precipitation Trends in Aztec

The chart displays monthly precipitation patterns in Aztec, 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 Aztec, December typically receives around 29 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec30334214228261030281829
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Aztec

In Aztec in December, humidity is 85%. With an average temperature of -1°C (31°F), this humidity feels like an uncomfortable chill that makes any outdoor travel feel damp and biting, penetrating through layers of clothing and making each breath feel cold and heavy.

December Average Humidity in Aztec

This chart illustrates the average monthly humidity levels in Aztec, 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 Aztec is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%76%69%53%40%36%44%59%74%83%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Aztec

In Aztec 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 Aztec for better planning.

Maximum UV Index Levels in Aztec for December

The chart shows the monthly maximum UV Index (UVI) for Aztec 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 Aztec typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479111213121110854
Data source: Aztec 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 Aztec Compares to Other Months

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

This table compares monthly weather conditions in Aztec, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)30 mm (1.2 inches)85%moderate
February Weather1°C (34°F)33 mm (1.3 inches)86%high
March Weather6°C (43°F)42 mm (1.7 inches)76%very high
April Weather12°C (54°F)14 mm (0.5 inches)69%extreme
May Weather17°C (63°F)22 mm (0.9 inches)53%extreme
June Weather24°C (75°F)8 mm (0.3 inches)40%extreme
July Weather26°C (79°F)26 mm (1.0 inches)36%extreme
August Weather25°C (77°F)10 mm (0.4 inches)44%extreme
September Weather20°C (68°F)30 mm (1.2 inches)59%very high
October Weather12°C (53°F)27 mm (1.1 inches)74%very high
November Weather5°C (42°F)18 mm (0.7 inches)83%moderate
December Weather-1°C (31°F)29 mm (1.2 inches)85%moderate

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