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December Weather in Merkel, United States

Last updated: June 24, 2025

In December, the average temperature in Merkel, United States hovers around 10°C (50°F), with extremes ranging from a chilly -5°C (23°F) to a warm 31°C (87°F). Expect about 23 mm (0.9 in) of precipitation over 3 days, contributing to an average humidity of 82%. Stay prepared for a mix of weather while enjoying the unique charm of the season!

December Temperature in Merkel

In December in Merkel, the average temperature is 10°C (50°F). The maximum can reach 31°C (87°F), and the minimum can be as low as -5°C (23°F). Travelers should be prepared for a wide range of temperatures during their visit.

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

The chart illustrates December temperature patterns in Merkel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Merkel, December typically has an average temperature of 10°C (50°F), with highs reaching up to 31°C (87°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec454859657582858477665550
Data source: Temperature data for Merkel 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 Merkel

In Merkel in December, the precipitation amount is 23 mm (0.9 in) over the course of 3 days.

December Precipitation Trends in Merkel

The chart displays monthly precipitation patterns in Merkel, 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 Merkel, December typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec262256607148214367682423
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Merkel

In Merkel in December, humidity is 82%. With an average temperature of 10°C (50°F), this humidity feels like a dense, heavy blanket wrapping around you, making every step feel sluggish and the air thick, which can make traveling quite uncomfortable.

December Average Humidity in Merkel

This chart illustrates the average monthly humidity levels in Merkel, 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 Merkel is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%74%66%70%75%79%78%71%69%70%82%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Merkel

In Merkel 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 Merkel for better planning.

Maximum UV Index Levels in Merkel for December

The chart shows the monthly maximum UV Index (UVI) for Merkel 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 Merkel typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479101112121110864
Data source: Merkel 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 Merkel Compares to Other Months

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

This table compares monthly weather conditions in Merkel, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)26 mm (1.0 inches)75%moderate
February Weather9°C (48°F)22 mm (0.9 inches)74%high
March Weather15°C (60°F)56 mm (2.2 inches)66%very high
April Weather18°C (65°F)60 mm (2.4 inches)70%very high
May Weather24°C (75°F)71 mm (2.8 inches)75%extreme
June Weather28°C (82°F)48 mm (1.9 inches)79%extreme
July Weather30°C (86°F)21 mm (0.8 inches)78%extreme
August Weather29°C (85°F)43 mm (1.7 inches)71%extreme
September Weather25°C (78°F)67 mm (2.6 inches)69%very high
October Weather19°C (67°F)68 mm (2.7 inches)70%very high
November Weather13°C (55°F)24 mm (1.0 inches)82%high
December Weather10°C (50°F)23 mm (0.9 inches)82%moderate

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