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December Weather in Meridian, United States

Last updated: June 24, 2025

In Meridian, United States, the average temperature in December hovers around 11°C (53°F), with the mercury dipping as low as -5°C (24°F) and soaring up to 31°C (88°F). Expect some rain, with an average precipitation of 46 mm (1.8 in) spread over 5 days. Humidity levels are notably high, averaging at 87%, contributing to the overall climate experience.

December Temperature in Meridian

In December in Meridian, the average temperature is 11°C (53°F), with maximums reaching 31°C (88°F) and minimums dropping as low as -5°C (24°F). This diverse temperature range means travelers should be prepared for both warm days and chilly nights.

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

The chart illustrates December temperature patterns in Meridian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Meridian, December typically has an average temperature of 11°C (53°F), with highs reaching up to 31°C (88°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec485061667582868579685752
Data source: Temperature data for Meridian 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 Meridian

In Meridian in December, the precipitation amount is 46 mm (1.8 in) recorded over a span of 5 days.

December Precipitation Trends in Meridian

The chart displays monthly precipitation patterns in Meridian, 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 Meridian, December typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec50798281155805395741214446
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Meridian

In Meridian in December, humidity is 87%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that clings to your skin, making it uncomfortable for traveling as it combines the cool air with a sense of heaviness, leaving you yearning for warmth and dryness.

December Average Humidity in Meridian

This chart illustrates the average monthly humidity levels in Meridian, 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 Meridian is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Meridian

In Meridian 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 Meridian for better planning.

Maximum UV Index Levels in Meridian for December

The chart shows the monthly maximum UV Index (UVI) for Meridian 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 Meridian typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101112111110864
Data source: Meridian 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 Meridian Compares to Other Months

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

This table compares monthly weather conditions in Meridian, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)50 mm (2.0 inches)78%moderate
February Weather10°C (50°F)78 mm (3.1 inches)78%high
March Weather16°C (61°F)82 mm (3.2 inches)77%very high
April Weather19°C (66°F)81 mm (3.2 inches)78%very high
May Weather24°C (75°F)155 mm (6.1 inches)82%extreme
June Weather28°C (82°F)80 mm (3.2 inches)78%extreme
July Weather30°C (86°F)53 mm (2.1 inches)69%extreme
August Weather30°C (85°F)95 mm (3.7 inches)63%extreme
September Weather26°C (79°F)74 mm (2.9 inches)66%very high
October Weather20°C (69°F)120 mm (4.7 inches)73%very high
November Weather14°C (58°F)44 mm (1.7 inches)84%high
December Weather11°C (53°F)46 mm (1.8 inches)87%moderate

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