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December Weather in Joshua, United States

Last updated: June 24, 2025

In December, the average temperature in Joshua, United States hovers around 11°C (52°F). Be prepared for a wide range of conditions, with temperatures dipping as low as -5°C (23°F) and soaring up to 30°C (86°F). Expect 50 mm (2.0 in) of precipitation over about 6 days, and a notably high average humidity of 85%. Whether you're planning a visit or just curious, this climate offers a unique blend of chill and warmth!

December Temperature in Joshua

In December in Joshua, the average temperature is 11°C (52°F), with maximums reaching 30°C (86°F) and minimums dropping as low as -5°C (23°F). This varied climate makes Joshua a versatile destination for travelers, so be sure to pack for a range of temperatures!

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

The chart illustrates December temperature patterns in Joshua, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Joshua, December typically has an average temperature of 11°C (52°F), with highs reaching up to 30°C (86°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec474961657482858579685752
Data source: Temperature data for Joshua 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 Joshua

In Joshua in December, the precipitation amount is 50 mm (2.0 in) over the course of 6 days.

December Precipitation Trends in Joshua

The chart displays monthly precipitation patterns in Joshua, 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 Joshua, December typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec46838899145924595661294850
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Joshua

In Joshua in December, humidity is 85%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making travel quite uncomfortable as the air feels heavy and can sap your energy.

December Average Humidity in Joshua

This chart illustrates the average monthly humidity levels in Joshua, 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 Joshua is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%74%75%80%80%75%67%64%70%82%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Joshua

In Joshua 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 Joshua for better planning.

Maximum UV Index Levels in Joshua for December

The chart shows the monthly maximum UV Index (UVI) for Joshua 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 Joshua typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Joshua 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 Joshua Compares to Other Months

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

This table compares monthly weather conditions in Joshua, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)46 mm (1.8 inches)77%moderate
February Weather10°C (49°F)83 mm (3.3 inches)76%high
March Weather16°C (61°F)88 mm (3.5 inches)74%very high
April Weather19°C (66°F)99 mm (3.9 inches)75%very high
May Weather24°C (75°F)145 mm (5.7 inches)80%extreme
June Weather28°C (82°F)92 mm (3.6 inches)80%extreme
July Weather30°C (85°F)45 mm (1.8 inches)75%extreme
August Weather29°C (85°F)95 mm (3.8 inches)67%extreme
September Weather26°C (79°F)66 mm (2.6 inches)64%very high
October Weather20°C (68°F)129 mm (5.1 inches)70%very high
November Weather14°C (57°F)48 mm (1.9 inches)82%high
December Weather11°C (52°F)50 mm (2.0 inches)85%moderate

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