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December Weather in Porter, United States

Last updated: June 24, 2025

In December, the average temperature in Porter, United States hovers around 8°C (46°F). Expect a wide range, with minimums dipping to -7°C (21°F) and maximums soaring up to 25°C (77°F). During this month, the region experiences approximately 68 mm (2.7 in) of precipitation over about 6 days, with humidity levels averaging a notable 87%.

December Temperature in Porter

In December in Porter, the average temperature is 8°C (46°F). The maximum can reach 25°C (77°F), and the minimum can be as low as -7°C (21°F). Be prepared for a wide range of temperatures when traveling during this month!

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

The chart illustrates December temperature patterns in Porter, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Porter, December typically has an average temperature of 8°C (46°F), with highs reaching up to 25°C (77°F) and lows dropping to around -7°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec404354607079838177635146
Data source: Temperature data for Porter 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 Porter

In Porter in December, the precipitation amount is 68 mm (2.7 in) spread over the course of 6 days.

December Precipitation Trends in Porter

The chart displays monthly precipitation patterns in Porter, 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 Porter, December typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec84871161582058688108881375968
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Porter

In Porter in December, humidity is 87%. With an average temperature of 8°C (46°F), this humidity feels like a chilly, damp fog clinging to your skin, making outdoor activities a bit uncomfortable and causing even mild exertion to leave you feeling clammy and cold.

December Average Humidity in Porter

This chart illustrates the average monthly humidity levels in Porter, 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 Porter is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%75%75%83%82%78%68%64%71%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Porter

In Porter 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 Porter, you can check the information here.

Maximum UV Index Levels in Porter for December

The chart shows the monthly maximum UV Index (UVI) for Porter 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 Porter typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109753
Data source: Porter 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 Porter Compares to Other Months

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

This table compares monthly weather conditions in Porter, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)84 mm (3.3 inches)79%moderate
February Weather6°C (43°F)87 mm (3.4 inches)78%high
March Weather12°C (55°F)116 mm (4.6 inches)75%high
April Weather16°C (60°F)158 mm (6.2 inches)75%very high
May Weather21°C (71°F)205 mm (8.1 inches)83%very high
June Weather26°C (80°F)86 mm (3.4 inches)81%extreme
July Weather28°C (83°F)88 mm (3.5 inches)78%extreme
August Weather27°C (81°F)108 mm (4.3 inches)68%very high
September Weather25°C (77°F)88 mm (3.4 inches)64%very high
October Weather17°C (63°F)137 mm (5.4 inches)71%high
November Weather11°C (51°F)59 mm (2.3 inches)82%moderate
December Weather8°C (46°F)68 mm (2.7 inches)87%moderate

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