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December Weather in Stevenson Ranch, United States

Last updated: June 24, 2025

In Stevenson Ranch, United States, the average temperature in December hovers around 10°C (51°F), with a minimum drop to -1°C (30°F) and a maximum peak of 25°C (77°F). Expect about 68 mm (2.7 in) of precipitation spread over 5 days, contributing to the 76% average humidity that characterizes this time of year.

December Temperature in Stevenson Ranch

In December in Stevenson Ranch, the average temperature is 10°C (51°F). Maximum temperatures can reach 25°C (77°F), while minimums can dip as low as -1°C (30°F). This varied climate makes Stevenson Ranch an ideal destination for travelers seeking both mild days and cool evenings.

December Weather in Stevenson Ranch: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Stevenson Ranch, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stevenson Ranch, December typically has an average temperature of 10°C (51°F), with highs reaching up to 25°C (77°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec515254616472787874665850
Data source: Temperature data for Stevenson Ranch 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 Stevenson Ranch

In Stevenson Ranch in December, the total precipitation amount is 68 mm (2.7 in) over the course of 5 days.

December Precipitation Trends in Stevenson Ranch

The chart displays monthly precipitation patterns in Stevenson Ranch, 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 Stevenson Ranch, December typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec6355712216322491968
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Stevenson Ranch

In Stevenson Ranch in December, humidity is 76%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that can make outdoor excursions feel much colder, requiring extra layers for comfort as you explore the area.

December Average Humidity in Stevenson Ranch

This chart illustrates the average monthly humidity levels in Stevenson Ranch, 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 Stevenson Ranch is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%82%76%68%58%52%46%39%48%59%72%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Stevenson Ranch

In Stevenson Ranch 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 Stevenson Ranch for better planning.

Maximum UV Index Levels in Stevenson Ranch for December

The chart shows the monthly maximum UV Index (UVI) for Stevenson Ranch 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 Stevenson Ranch typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Stevenson Ranch 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 Stevenson Ranch Compares to Other Months

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

This table compares monthly weather conditions in Stevenson Ranch, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)63 mm (2.5 inches)78%moderate
February Weather11°C (52°F)55 mm (2.2 inches)82%high
March Weather12°C (55°F)71 mm (2.8 inches)75%very high
April Weather16°C (62°F)22 mm (0.9 inches)68%very high
May Weather18°C (65°F)16 mm (0.6 inches)57%extreme
June Weather22°C (72°F)3 mm (0.1 inches)52%extreme
July Weather25°C (78°F)1 mm (0.1 inches)46%extreme
August Weather26°C (78°F)2 mm (0.1 inches)39%extreme
September Weather23°C (74°F)4 mm (0.2 inches)48%very high
October Weather19°C (66°F)9 mm (0.3 inches)59%high
November Weather15°C (59°F)19 mm (0.7 inches)72%moderate
December Weather10°C (51°F)68 mm (2.7 inches)76%moderate

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