December Weather in Meridian, United States

Last updated: June 24, 2025

In Meridian, United States, the average temperature in December hovers around 11°C (52°F). Expect a chill in the air as temperatures can dip to a minimum of -4°C (25°F), while occasionally peaking at a pleasant 27°C (80°F). With an average precipitation of 126 mm (5.0 in) spread over 12 days, it's wise to carry an umbrella. Additionally, the average humidity sits at a high 88%, making the air feel quite moist.

December Temperature in Meridian

In December in Meridian, the average temperature is 11°C (52°F). The maximum can reach 27°C (80°F), while the minimum can drop as low as -4°C (25°F). This varied climate makes Meridian an intriguing destination for travelers seeking both mild and cooler experiences.

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 (52°F), with highs reaching up to 27°C (80°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec495461657479818178695552
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 126 mm (5.0 in) over the course of 12 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 126 mm (5.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec1071431171291231621191289510371126
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 88%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and the air feel thick, encouraging you to seek shelter or stay hydrated as you explore.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
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.
JanFebMarAprMayJunJulAugSepOctNovDec478111111111110864
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 (49°F)107 mm (4.2 inches)85%moderate
February Weather12°C (55°F)143 mm (5.6 inches)84%high
March Weather16°C (61°F)117 mm (4.6 inches)82%very high
April Weather18°C (65°F)129 mm (5.1 inches)82%extreme
May Weather23°C (74°F)123 mm (4.8 inches)82%extreme
June Weather26°C (79°F)162 mm (6.4 inches)79%extreme
July Weather27°C (81°F)119 mm (4.7 inches)82%extreme
August Weather27°C (81°F)128 mm (5.0 inches)77%extreme
September Weather25°C (78°F)95 mm (3.7 inches)74%very high
October Weather21°C (70°F)103 mm (4.1 inches)73%very high
November Weather13°C (56°F)71 mm (2.8 inches)85%high
December Weather11°C (52°F)126 mm (5.0 inches)88%moderate

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