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December Weather in Pioneer, United States

Last updated: June 24, 2025

In December, the average temperature in Pioneer, United States hovers around 0°C (33°F). During this month, expect a low of -23°C (-9°F) and a high of 16°C (61°F). With an average humidity of 86%, the air feels quite damp; be prepared for some precipitation, as 57 mm (2.2 in) is expected over the course of 9 days.

December Temperature in Pioneer

In December in Pioneer, the average temperature is 0°C (33°F). Maximum temperatures can reach 16°C (61°F), while minimums can drop as low as -23°C (-9°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates December temperature patterns in Pioneer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pioneer, December typically has an average temperature of 0°C (33°F), with highs reaching up to 16°C (61°F) and lows dropping to around -23°C (-9°F).
JanFebMarAprMayJunJulAugSepOctNovDec272838486071757266543933
Data source: Temperature data for Pioneer 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 Pioneer

In Pioneer in December, the total precipitation amount is 57 mm (2.2 in) over the course of 9 days.

December Precipitation Trends in Pioneer

The chart displays monthly precipitation patterns in Pioneer, 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 Pioneer, December typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec72729310014111212192621038257
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Pioneer

In Pioneer in December humidity is 86%. With an average temperature of 0°C (33°F), this humidity feels like a damp chill that permeates your clothes, making traveling uncomfortable and necessitating warm, layered clothing to stay dry and cozy.

December Average Humidity in Pioneer

This chart illustrates the average monthly humidity levels in Pioneer, 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 Pioneer is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Pioneer

In Pioneer 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 Pioneer, you can visit Hourly UV Index in Pioneer.

Maximum UV Index Levels in Pioneer for December

The chart shows the monthly maximum UV Index (UVI) for Pioneer 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 Pioneer typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35699101098642
Data source: Pioneer 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 Pioneer Compares to Other Months

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

This table compares monthly weather conditions in Pioneer, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)72 mm (2.8 inches)88%moderate
February Weather-2°C (28°F)72 mm (2.8 inches)87%moderate
March Weather3°C (38°F)93 mm (3.6 inches)87%high
April Weather9°C (48°F)100 mm (3.9 inches)87%very high
May Weather16°C (61°F)141 mm (5.6 inches)81%very high
June Weather21°C (71°F)112 mm (4.4 inches)82%very high
July Weather24°C (75°F)121 mm (4.8 inches)81%very high
August Weather22°C (72°F)92 mm (3.6 inches)78%very high
September Weather19°C (66°F)62 mm (2.4 inches)78%very high
October Weather12°C (54°F)103 mm (4.0 inches)82%high
November Weather4°C (39°F)82 mm (3.2 inches)89%moderate
December Weather0°C (33°F)57 mm (2.2 inches)86%low

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