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December Weather in Rison, United States

Last updated: June 24, 2025

In December, the average temperature in Rison, United States hovers around 9°C (49°F). You can expect minimums as low as -6°C (21°F) and maximums reaching up to 26°C (79°F). Be prepared for 162 mm (6.4 in) of precipitation over about 10 days, and don’t forget your umbrella, as the average humidity is a high 88%!

December Temperature in Rison

In December in Rison, the average temperature is 9°C (49°F), with maximums reaching 26°C (79°F) and minimums dropping as low as -6°C (21°F). This wide range of temperatures suggests travelers should be prepared for both warm days and chilly nights while exploring the area.

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

The chart illustrates December temperature patterns in Rison, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rison, December typically has an average temperature of 9°C (49°F), with highs reaching up to 26°C (79°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec454858637380828177665349
Data source: Temperature data for Rison 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 Rison

In Rison in December, the precipitation amount is 162 mm (6.4 in) over a span of 10 days.

December Precipitation Trends in Rison

The chart displays monthly precipitation patterns in Rison, 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 Rison, December typically receives around 162 mm (6.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec112166165179149111971239812877162
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rison

In Rison in December, humidity is 88%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.

December Average Humidity in Rison

This chart illustrates the average monthly humidity levels in Rison, 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 Rison is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%80%82%83%80%80%75%73%76%84%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rison

In Rison 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 Rison for better planning.

Maximum UV Index Levels in Rison for December

The chart shows the monthly maximum UV Index (UVI) for Rison 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 Rison typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111119764
Data source: Rison 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 Rison Compares to Other Months

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

This table compares monthly weather conditions in Rison, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)112 mm (4.4 inches)84%moderate
February Weather9°C (48°F)166 mm (6.5 inches)83%high
March Weather14°C (58°F)165 mm (6.5 inches)80%very high
April Weather17°C (63°F)179 mm (7.0 inches)82%very high
May Weather23°C (73°F)149 mm (5.9 inches)83%extreme
June Weather26°C (80°F)110 mm (4.3 inches)80%extreme
July Weather28°C (83°F)97 mm (3.8 inches)80%extreme
August Weather27°C (81°F)123 mm (4.8 inches)75%extreme
September Weather25°C (77°F)98 mm (3.9 inches)73%very high
October Weather19°C (66°F)128 mm (5.0 inches)76%high
November Weather11°C (53°F)77 mm (3.0 inches)84%high
December Weather9°C (49°F)162 mm (6.4 inches)88%moderate

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