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December Weather in Simmesport, United States

Last updated: June 24, 2025

In Simmesport, United States, the average temperature in December hovers around 13°C (55°F). However, be prepared for a significant range, as temperatures can dip to a brisk -3°C (28°F) or rise to a warm 29°C (84°F). Expect approximately 121 mm (4.8 in) of precipitation over 11 days, with the air carrying a notable average humidity of 88%.

December Temperature in Simmesport

In December in Simmesport, the average temperature is 13°C (55°F). The maximum can reach 29°C (84°F), while the minimum can dip as low as -3°C (28°F). Travelers should be prepared for a wide range of temperatures during this time.

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

The chart illustrates December temperature patterns in Simmesport, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Simmesport, December typically has an average temperature of 13°C (55°F), with highs reaching up to 29°C (84°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec525664677680828279715955
Data source: Temperature data for Simmesport 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 Simmesport

In Simmesport in December, the total precipitation amount is 121 mm (4.8 in), which occurs over the course of 11 days.

December Precipitation Trends in Simmesport

The chart displays monthly precipitation patterns in Simmesport, 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 Simmesport, December typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec1151229916517516015913312511982121
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Simmesport

In Simmesport in December humidity is 88%. With an average temperature of 13°C (55°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers while exploring, as the moisture in the air can lead to a rather uncomfortable experience for traveling.

December Average Humidity in Simmesport

This chart illustrates the average monthly humidity levels in Simmesport, 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 Simmesport is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%83%80%81%81%78%79%79%79%77%85%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Simmesport

In Simmesport 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 Simmesport for better planning.

Maximum UV Index Levels in Simmesport for December

The chart shows the monthly maximum UV Index (UVI) for Simmesport 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 Simmesport typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121110864
Data source: Simmesport 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 Simmesport Compares to Other Months

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

This table compares monthly weather conditions in Simmesport, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)115 mm (4.5 inches)83%moderate
February Weather14°C (57°F)122 mm (4.8 inches)83%very high
March Weather18°C (64°F)99 mm (3.9 inches)80%very high
April Weather20°C (67°F)165 mm (6.5 inches)81%extreme
May Weather24°C (76°F)175 mm (6.9 inches)81%extreme
June Weather27°C (81°F)160 mm (6.3 inches)78%extreme
July Weather28°C (82°F)159 mm (6.2 inches)79%extreme
August Weather28°C (82°F)133 mm (5.2 inches)79%extreme
September Weather26°C (80°F)125 mm (4.9 inches)79%very high
October Weather22°C (72°F)119 mm (4.7 inches)77%very high
November Weather15°C (59°F)82 mm (3.2 inches)85%high
December Weather13°C (55°F)121 mm (4.8 inches)88%moderate

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