nomadseason

December Weather in Pierre, United States

Last updated: June 24, 2025

In December, the average temperature in Pierre, United States hovers around -3°C (27°F). Expect a chilly range, with minimums potentially plummeting to -27°C (-15°F) and maximums reaching a more temperate 20°C (68°F). The month brings about 26 mm (1.0 in) of precipitation spread over approximately 4 days, while the air maintains an average humidity of 76%. Bundle up and stay prepared for the brisk conditions!

December Temperature in Pierre

In December, in Pierre, the average temperature is -3°C (27°F). Maximums can reach 20°C (68°F), while minimums can drop as low as -27°C (-15°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates December temperature patterns in Pierre, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pierre, December typically has an average temperature of -3°C (27°F), with highs reaching up to 20°C (68°F) and lows dropping to around -27°C (-15°F).
JanFebMarAprMayJunJulAugSepOctNovDec201934445973787466473627
Data source: Temperature data for Pierre generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Pierre

In Pierre in December, the precipitation amount is 26 mm (1.0 in) over the course of 4 days.

December Precipitation Trends in Pierre

The chart displays monthly precipitation patterns in Pierre, 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 Pierre, December typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec151938497862865360541126
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Pierre

In Pierre in December, humidity is 76%. With an average temperature of -3°C (27°F), this humidity feels like a chilly dampness that seeps into your bones, making it essential to bundle up when traveling outdoors.

December Average Humidity in Pierre

This chart illustrates the average monthly humidity levels in Pierre, 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 Pierre is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%81%72%73%75%82%83%82%73%71%78%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Pierre

In Pierre in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Pierre, you can visit Hourly UV Index in Pierre.

Maximum UV Index Levels in Pierre for December

The chart shows the monthly maximum UV Index (UVI) for Pierre 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 Pierre typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec25579101098532
Data source: Pierre 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 Pierre Compares to Other Months

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

This table compares monthly weather conditions in Pierre, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)15 mm (0.6 inches)78%low
February Weather-7°C (19°F)19 mm (0.8 inches)81%moderate
March Weather1°C (34°F)38 mm (1.5 inches)71%moderate
April Weather7°C (44°F)49 mm (1.9 inches)73%high
May Weather15°C (59°F)78 mm (3.1 inches)75%very high
June Weather23°C (73°F)62 mm (2.4 inches)82%very high
July Weather25°C (78°F)86 mm (3.4 inches)83%very high
August Weather23°C (74°F)53 mm (2.1 inches)82%very high
September Weather19°C (66°F)60 mm (2.3 inches)73%very high
October Weather9°C (48°F)54 mm (2.1 inches)71%moderate
November Weather2°C (36°F)11 mm (0.4 inches)78%moderate
December Weather-3°C (27°F)26 mm (1.0 inches)76%low

Compare Pierre's Climate with Cities Worldwide