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December Weather in Prescott, United States

Last updated: June 24, 2025

In Prescott, United States, the average temperature in December hovers around 6°C (43°F). You can expect a minimum of -8°C (18°F) and a potential maximum reaching 21°C (70°F). During this month, precipitation amounts to about 31 mm (1.2 in) spread over 5 days, with an average humidity level of 77%.

December Temperature in Prescott

In December in Prescott, the average temperature is 6°C (43°F). The maximum can reach 21°C (70°F) and the minimum can be as low as -8°C (18°F). Be sure to pack layers to stay comfortable while exploring the varied climate!

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

The chart illustrates December temperature patterns in Prescott, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Prescott, December typically has an average temperature of 6°C (43°F), with highs reaching up to 21°C (70°F) and lows dropping to around -8°C (18°F).
JanFebMarAprMayJunJulAugSepOctNovDec424349596678797873615243
Data source: Temperature data for Prescott 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 Prescott

In Prescott in December, the precipitation amount is 31 mm (1.2 in) spread over 5 days.

December Precipitation Trends in Prescott

The chart displays monthly precipitation patterns in Prescott, 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 Prescott, December typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec45475191451105635262531
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Prescott

In Prescott in December humidity is 77%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress warmly and stay active while exploring the area.

December Average Humidity in Prescott

This chart illustrates the average monthly humidity levels in Prescott, 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 Prescott is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%80%68%58%45%31%27%30%48%60%70%77%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Prescott

In Prescott in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Prescott for better planning.

Maximum UV Index Levels in Prescott for December

The chart shows the monthly maximum UV Index (UVI) for Prescott 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 Prescott typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479111212121110864
Data source: Prescott 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 Prescott Compares to Other Months

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

This table compares monthly weather conditions in Prescott, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)45 mm (1.8 inches)77%moderate
February Weather6°C (43°F)47 mm (1.8 inches)80%high
March Weather10°C (49°F)51 mm (2.0 inches)68%very high
April Weather15°C (59°F)9 mm (0.3 inches)58%extreme
May Weather19°C (66°F)14 mm (0.6 inches)45%extreme
June Weather25°C (78°F)5 mm (0.2 inches)31%extreme
July Weather26°C (80°F)110 mm (4.3 inches)27%extreme
August Weather26°C (78°F)56 mm (2.2 inches)30%extreme
September Weather23°C (73°F)35 mm (1.4 inches)48%very high
October Weather16°C (61°F)26 mm (1.0 inches)59%very high
November Weather11°C (52°F)25 mm (1.0 inches)70%high
December Weather6°C (43°F)31 mm (1.2 inches)77%moderate

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