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December Weather in South Rosemary, United States

Last updated: June 24, 2025

In South Rosemary, United States, the average temperature in December hovers around 8°C (46°F), but you might experience a wide range with minimums dipping to -8°C (17°F) and maximums peaking at 23°C (74°F). Expect 94 mm (3.7 in) of precipitation over approximately 9 days, accompanied by a notably high average humidity of 85%.

December Temperature in South Rosemary

In December in South Rosemary, the average temperature is 8°C (46°F). Maximums can reach 23°C (74°F) and minimums can be as low as -8°C (17°F). Travelers should be prepared for a wide range of temperatures, so layering clothing is advisable.

December Weather in South Rosemary: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in South Rosemary, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Rosemary, December typically has an average temperature of 8°C (46°F), with highs reaching up to 23°C (74°F) and lows dropping to around -8°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec424752617076807974655146
Data source: Temperature data for South Rosemary 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 South Rosemary

In South Rosemary in December, the precipitation amount reaches 94 mm (3.7 in) over the course of 9 days.

December Precipitation Trends in South Rosemary

The chart displays monthly precipitation patterns in South Rosemary, 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 South Rosemary, December typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec8810984105111123116147111898394
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in South Rosemary

In South Rosemary in December humidity is 85%. With an average temperature of 8°C (46°F), this humidity feels like a cold, damp embrace that can leave travelers feeling chilled and uncomfortable, making outdoor exploration less appealing and encouraging the search for cozy indoor activities instead.

December Average Humidity in South Rosemary

This chart illustrates the average monthly humidity levels in South Rosemary, 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 South Rosemary is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%84%82%83%83%79%77%75%81%87%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in South Rosemary

In South Rosemary in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in South Rosemary, you can check the information here.

Maximum UV Index Levels in South Rosemary for December

The chart shows the monthly maximum UV Index (UVI) for South Rosemary 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 South Rosemary typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101111109853
Data source: South Rosemary 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 South Rosemary Compares to Other Months

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

This table compares monthly weather conditions in South Rosemary, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)88 mm (3.5 inches)84%moderate
February Weather9°C (48°F)109 mm (4.3 inches)84%high
March Weather11°C (52°F)84 mm (3.3 inches)84%very high
April Weather16°C (62°F)105 mm (4.1 inches)82%very high
May Weather21°C (70°F)111 mm (4.4 inches)82%very high
June Weather25°C (76°F)123 mm (4.8 inches)83%extreme
July Weather27°C (81°F)116 mm (4.6 inches)79%extreme
August Weather26°C (79°F)147 mm (5.8 inches)77%very high
September Weather23°C (74°F)111 mm (4.4 inches)75%very high
October Weather18°C (65°F)89 mm (3.5 inches)81%very high
November Weather11°C (51°F)83 mm (3.3 inches)87%moderate
December Weather8°C (46°F)94 mm (3.7 inches)85%moderate

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