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December Weather in Alexandria, United States

Last updated: June 24, 2025

In December, the average temperature in Alexandria, United States hovers around 9°C (49°F), creating a cool atmosphere for visitors. Temperatures can dip as low as -7°C (20°F) and occasionally rise to a pleasant 23°C (75°F). Expect moderate precipitation with around 145 mm (5.7 in) falling over approximately 12 days, and prepare for the humidity to be quite high at an average of 88%.

December Temperature in Alexandria

In December in Alexandria, the average temperature is 9°C (49°F). The maximum can reach 23°C (75°F), while the minimum can be as low as -7°C (20°F). Be prepared for a range of temperatures and pack accordingly for your travels!

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

The chart illustrates December temperature patterns in Alexandria, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alexandria, December typically has an average temperature of 9°C (49°F), with highs reaching up to 23°C (75°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec465157637277807976675249
Data source: Temperature data for Alexandria 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 Alexandria

In Alexandria in December, the precipitation amount is 145 mm (5.7 in) over the course of 12 days.

December Precipitation Trends in Alexandria

The chart displays monthly precipitation patterns in Alexandria, 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 Alexandria, December typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec1161651351551041361031259012384145
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Alexandria

In Alexandria in December, humidity is 88%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.

December Average Humidity in Alexandria

This chart illustrates the average monthly humidity levels in Alexandria, 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 Alexandria is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%81%77%77%72%73%73%85%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Alexandria

In Alexandria 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 Alexandria for better planning.

Maximum UV Index Levels in Alexandria for December

The chart shows the monthly maximum UV Index (UVI) for Alexandria 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 Alexandria typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109864
Data source: Alexandria 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 Alexandria Compares to Other Months

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

This table compares monthly weather conditions in Alexandria, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)116 mm (4.6 inches)85%moderate
February Weather11°C (52°F)165 mm (6.5 inches)84%high
March Weather14°C (57°F)135 mm (5.3 inches)82%very high
April Weather17°C (63°F)155 mm (6.1 inches)82%very high
May Weather22°C (72°F)104 mm (4.1 inches)81%extreme
June Weather25°C (77°F)136 mm (5.3 inches)77%extreme
July Weather27°C (80°F)103 mm (4.0 inches)77%extreme
August Weather26°C (80°F)124 mm (4.9 inches)72%very high
September Weather24°C (76°F)90 mm (3.6 inches)73%very high
October Weather19°C (67°F)123 mm (4.8 inches)73%very high
November Weather11°C (53°F)83 mm (3.3 inches)85%high
December Weather9°C (49°F)145 mm (5.7 inches)88%moderate

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