December Weather in Alhambra, United States

Last updated: June 24, 2025

In December, the average temperature in Alhambra, United States hovers around 3°C (38°F). Expect a range where minimums can dip to -19°C (-2°F) and maximums may reach up to 20°C (69°F). The weather is typically quite wet, with an average precipitation of 60 mm (2.4 in) over about 7 days. Additionally, you'll likely experience high humidity levels at 87%, making for a cozy yet brisk atmosphere.

December Temperature in Alhambra

In December in Alhambra, the average temperature is 3°C (38°F). Maximum temperatures can reach 20°C (69°F), while minimum temperatures can drop as low as -19°C (-2°F). Travelers should be prepared for chilly conditions and dress in layers to adapt to the fluctuating temperatures.

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

The chart illustrates December temperature patterns in Alhambra, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alhambra, December typically has an average temperature of 3°C (38°F), with highs reaching up to 20°C (69°F) and lows dropping to around -19°C (-2°F).
JanFebMarAprMayJunJulAugSepOctNovDec313446546776797672594338
Data source: Temperature data for Alhambra 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 Alhambra

In Alhambra in December, the precipitation amount is 60 mm (2.4 in) over the course of 7 days.

December Precipitation Trends in Alhambra

The chart displays monthly precipitation patterns in Alhambra, 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 Alhambra, December typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec7881132142162111102119631057760
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Alhambra

In Alhambra in December humidity is 87%. With an average temperature of 3°C (38°F), this humidity feels like a chilly blanket wrapped around you, making travel quite uncomfortable as the cold dampness seeps into your clothes and lingers in the air, often leaving you shivering and longing for warmer, drier conditions.

December Average Humidity in Alhambra

This chart illustrates the average monthly humidity levels in Alhambra, 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 Alhambra is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Alhambra

In Alhambra in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Alhambra, you can check the information here.

Maximum UV Index Levels in Alhambra for December

The chart shows the monthly maximum UV Index (UVI) for Alhambra 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 Alhambra typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111199643
Data source: Alhambra 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 Alhambra Compares to Other Months

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

This table compares monthly weather conditions in Alhambra, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)78 mm (3.1 inches)84%moderate
February Weather1°C (35°F)81 mm (3.2 inches)82%moderate
March Weather8°C (46°F)132 mm (5.2 inches)84%high
April Weather12°C (55°F)142 mm (5.6 inches)83%very high
May Weather19°C (67°F)162 mm (6.4 inches)80%very high
June Weather25°C (77°F)111 mm (4.4 inches)83%extreme
July Weather26°C (79°F)102 mm (4.0 inches)82%extreme
August Weather24°C (76°F)119 mm (4.7 inches)82%very high
September Weather22°C (72°F)63 mm (2.5 inches)79%very high
October Weather15°C (59°F)105 mm (4.1 inches)79%high
November Weather6°C (44°F)77 mm (3.0 inches)88%moderate
December Weather3°C (38°F)60 mm (2.4 inches)87%moderate

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