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December Weather in South West City, United States

Last updated: June 24, 2025

In South West City, United States, the average temperature in December hovers around 6°C (43°F). Temperatures can range from a chilly -10°C (14°F) to a warm 24°C (75°F). During this month, expect 61 mm (2.4 in) of precipitation spread over 7 days, along with high humidity levels averaging 87%.

December Temperature in South West City

In December in South West City, the average temperature is 6°C (43°F), with a maximum that can reach 24°C (75°F) and a minimum that can be as low as -10°C (14°F). Be sure to pack a variety of clothing to stay comfortable during your travels, as the weather can vary significantly.

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

The chart illustrates December temperature patterns in South West City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South West City, December typically has an average temperature of 6°C (43°F), with highs reaching up to 24°C (75°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec374051576777807874604843
Data source: Temperature data for South West City 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 West City

In South West City in December, the precipitation amount is 61 mm (2.4 in) over the course of 7 days.

December Precipitation Trends in South West City

The chart displays monthly precipitation patterns in South West City, 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 West City, December typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec86871461701719398134701576461
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in South West City

In South West City in December, humidity is 87%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating warm, breathable layers for traveling.

December Average Humidity in South West City

This chart illustrates the average monthly humidity levels in South West City, 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 West City is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in South West City

In South West City 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 West City, you can check the information here.

Maximum UV Index Levels in South West City for December

The chart shows the monthly maximum UV Index (UVI) for South West City 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 West City typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: South West City 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 West City Compares to Other Months

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

This table compares monthly weather conditions in South West City, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)86 mm (3.4 inches)81%moderate
February Weather4°C (40°F)87 mm (3.4 inches)78%high
March Weather11°C (52°F)146 mm (5.7 inches)76%high
April Weather14°C (57°F)170 mm (6.7 inches)78%very high
May Weather20°C (68°F)171 mm (6.7 inches)83%very high
June Weather25°C (77°F)93 mm (3.7 inches)83%extreme
July Weather27°C (80°F)98 mm (3.9 inches)78%extreme
August Weather25°C (78°F)133 mm (5.3 inches)68%very high
September Weather23°C (74°F)70 mm (2.8 inches)64%very high
October Weather16°C (60°F)157 mm (6.2 inches)70%high
November Weather9°C (48°F)64 mm (2.5 inches)83%moderate
December Weather6°C (43°F)61 mm (2.4 inches)87%moderate

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