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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 10°C (50°F), with a notable minimum of -4°C (25°F) and a possible maximum of 26°C (79°F). Expect 146 mm (5.7 in) of precipitation spread over 10 days, contributing to a high average humidity of 88%. Plan accordingly for a month where the weather can range from chilly to pleasantly warm!

December Temperature in Prescott

In December in Prescott, the average temperature is 10°C (50°F). The maximum can reach 26°C (79°F), while the minimum can drop as low as -4°C (25°F). This variability makes it essential for travelers to pack layers to stay comfortable in changing weather conditions.

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 10°C (50°F), with highs reaching up to 26°C (79°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec454858637280828277665450
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 total precipitation amount is 146 mm (5.7 in) over the course of 10 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 146 mm (5.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec105165157195166108971049210178146
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 88%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and encouraging travelers to seek cozy indoor activities instead.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%78%79%81%77%72%65%63%70%82%88%
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.
JanFebMarAprMayJunJulAugSepOctNovDec468101112111110864
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 Weather7°C (45°F)105 mm (4.1 inches)82%moderate
February Weather9°C (48°F)165 mm (6.5 inches)80%high
March Weather15°C (58°F)157 mm (6.2 inches)78%very high
April Weather17°C (63°F)195 mm (7.7 inches)79%very high
May Weather22°C (73°F)166 mm (6.5 inches)81%extreme
June Weather27°C (80°F)108 mm (4.2 inches)77%extreme
July Weather28°C (83°F)97 mm (3.8 inches)72%extreme
August Weather28°C (82°F)104 mm (4.1 inches)65%extreme
September Weather25°C (78°F)92 mm (3.6 inches)63%very high
October Weather19°C (66°F)101 mm (4.0 inches)70%very high
November Weather12°C (54°F)78 mm (3.1 inches)82%high
December Weather10°C (50°F)146 mm (5.7 inches)88%moderate

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