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December Weather in Mertzon, United States

Last updated: June 24, 2025

In Mertzon, United States, the average temperature in December hovers around 10°C (51°F). Expect a wide temperature range, with a minimum as low as -4°C (25°F) and a maximum reaching 28°C (83°F). During this month, anticipate 24 mm (0.9 in) of precipitation spread over 3 days, and prepare for high humidity levels averaging 85%.

December Temperature in Mertzon

In December in Mertzon, the average temperature is 10°C (51°F). Maximum temperatures can reach 28°C (83°F), while minimums can drop as low as -4°C (25°F). This variation in temperatures makes it essential for travelers to pack accordingly to enjoy their stay comfortably.

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

The chart illustrates December temperature patterns in Mertzon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mertzon, December typically has an average temperature of 10°C (51°F), with highs reaching up to 28°C (83°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec475061677581848477675651
Data source: Temperature data for Mertzon 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 Mertzon

In Mertzon in December, the precipitation amount is 24 mm (0.9 in) over a span of 3 days.

December Precipitation Trends in Mertzon

The chart displays monthly precipitation patterns in Mertzon, 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 Mertzon, December typically receives around 24 mm (0.9 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec2322484910649193579522624
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mertzon

In Mertzon in December, humidity is 85%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill enveloping you, making travel quite uncomfortable as your clothes cling to your skin and the air feels heavy, often leaving you longing for a dry, warmer environment.

December Average Humidity in Mertzon

This chart illustrates the average monthly humidity levels in Mertzon, 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 Mertzon is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%74%69%70%77%76%66%60%67%72%84%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mertzon

In Mertzon in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Mertzon.

Maximum UV Index Levels in Mertzon for December

The chart shows the monthly maximum UV Index (UVI) for Mertzon 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 Mertzon typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111212121211865
Data source: Mertzon 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 Mertzon Compares to Other Months

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

This table compares monthly weather conditions in Mertzon, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)23 mm (0.9 inches)74%moderate
February Weather10°C (50°F)22 mm (0.9 inches)74%high
March Weather16°C (61°F)48 mm (1.9 inches)68%very high
April Weather19°C (67°F)49 mm (1.9 inches)70%extreme
May Weather24°C (76°F)106 mm (4.2 inches)77%extreme
June Weather27°C (82°F)49 mm (1.9 inches)76%extreme
July Weather29°C (84°F)19 mm (0.7 inches)66%extreme
August Weather29°C (84°F)35 mm (1.4 inches)60%extreme
September Weather25°C (78°F)79 mm (3.1 inches)67%extreme
October Weather20°C (67°F)52 mm (2.1 inches)72%very high
November Weather14°C (57°F)26 mm (1.0 inches)83%high
December Weather10°C (51°F)24 mm (0.9 inches)85%moderate

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